[ { "part": "M11.15 ATA 35", "ch": "What is hypoxia?", "ansGr": [ { "ans": [ "A condition caused by a lack of oxygen in the body.", "true" ] }, { "ans": [ "An illness caused by breathing too much oxygen.", "false" ] }, { "ans": [ "A fear of heights", "false" ] } ] }, { "ch": "What is the approximate percentage of oxygen in the air we breathe at sea level?", "ansGr": [ { "ans": [ "0.21", "true" ] }, { "ans": [ "0.35", "false" ] }, { "ans": [ "0.55", "false" ] } ] }, { "ch": "At what altitude above sea level does the oxygen pressure become insufficient to fully saturate the blood with oxygen?", "ansGr": [ { "ans": [ "7,000 feet", "true" ] }, { "ans": [ "10,000 feet", "false" ] }, { "ans": [ "15000 feet", "false" ] } ] }, { "ch": "What is the typical color used for high-pressure gaseous oxygen cylinders?", "ansGr": [ { "ans": [ "Green", "true" ] }, { "ans": [ "Red", "false" ] }, { "ans": [ "Yellow", "false" ] } ] }, { "ch": "What type of material is used in some newer, lighter-weight oxygen cylinders?", "ansGr": [ { "ans": [ "Kevlar", "true" ] }, { "ans": [ "Carbon fiber", "false" ] }, { "ans": [ "Titanium", "false" ] } ] }, { "ch": "What is the approximate temperature at which oxygen becomes liquid (LOX)?", "ansGr": [ { "ans": [ "-183°C", "true" ] }, { "ans": [ "-150°C", "false" ] }, { "ans": [ "-100°C", "false" ] } ] }, { "ch": "What type of oxygen system is commonly used as a backup in pressurized aircraft?", "ansGr": [ { "ans": [ "Chemical oxygen system", "true" ] }, { "ans": [ "Liquid oxygen (LOX) system", "false" ] }, { "ans": [ "Gaseous oxygen system with a single mask", "false" ] } ] }, { "ch": "What is the function of a diluter-demand regulator?", "ansGr": [ { "ans": [ "To mix oxygen with cabin air", "true" ] }, { "ans": [ "To deliver 100% oxygen at all times.", "false" ] }, { "ans": [ "To only deliver oxygen above 10,000 feet.", "false" ] } ] }, { "ch": "What is the purpose of a rebreather bag in a continuous-flow oxygen system?", "ansGr": [ { "ans": [ "To reuse some of the exhaled oxygen", "true" ] }, { "ans": [ "To store emergency oxygen.", "false" ] }, { "ans": [ "To inflate the oxygen mask.", "false" ] } ] }, { "ch": "What is the purpose of a pressure demand oxygen regulator?", "ansGr": [ { "ans": [ "To deliver oxygen under pressure to the user's lungs", "true" ] }, { "ans": [ "To reduce the pressure in the oxygen cylinder.", "false" ] }, { "ans": [ "To measure the amount of oxygen in the system.", "false" ] } ] }, { "ch": "What is the main component of a chemical oxygen generator?", "ansGr": [ { "ans": [ "Sodium chlorate candle", "true" ] }, { "ans": [ "A small oxygen cylinder", "false" ] }, { "ans": [ "A molecular sieve", "false" ] } ] }, { "ch": "What is the purpose of purging an oxygen system?", "ansGr": [ { "ans": [ "To remove any contaminants and moisture.", "true" ] }, { "ans": [ "To check for leaks.", "false" ] }, { "ans": [ "To reduce pressure in the system.", "false" ] } ] }, { "ch": "Why is it important to use oxygen-compatible materials in oxygen systems?", "ansGr": [ { "ans": [ "To prevent fires", "true" ] }, { "ans": [ "To save weight.", "false" ] }, { "ans": [ "To reduce costs.", "false" ] } ] }, { "ch": "What is the purpose of a hydrostatic test for oxygen cylinders?", "ansGr": [ { "ans": [ "To check the structural integrity of the cylinder.", "true" ] }, { "ans": [ "To measure the amount of oxygen in the cylinder.", "false" ] }, { "ans": [ "To clean the inside of the cylinder.", "false" ] } ] }, { "ch": "What is the purpose of a blowout disk in an oxygen system?", "ansGr": [ { "ans": [ "To act as a safety relief in case of overpressure.", "true" ] }, { "ans": [ "To filter out contaminants.", "false" ] }, { "ans": [ "To regulate oxygen flow.", "false" ] } ] }, { "ch": "What is a molecular sieve oxygen generator (MSOG)?", "ansGr": [ { "ans": [ "A device that separates oxygen from the air.", "true" ] }, { "ans": [ "A type of chemical oxygen generator.", "false" ] }, { "ans": [ "A device that converts liquid oxygen to gaseous oxygen.", "false" ] } ] }, { "ch": "Why should oxygen system shutoff valves be opened slowly?", "ansGr": [ { "ans": [ "To prevent rapid compression and possible ignition", "true" ] }, { "ans": [ "To conserve oxygen", "false" ] }, { "ans": [ "To make it easier to control the flow.", "false" ] } ] }, { "ch": "What is the purpose of the black rectangular symbol overprinted on a white background found on oxygen system tubing?", "ansGr": [ { "ans": [ "To identify the tubing as part of the oxygen system.", "true" ] }, { "ans": [ "To show the direction of oxygen flow.", "false" ] }, { "ans": [ "To warn of high-pressure oxygen.", "false" ] } ] }, { "ch": "What is a key characteristic of a demand-flow oxygen system?", "ansGr": [ { "ans": [ "It delivers oxygen only when the user inhales.", "true" ] }, { "ans": [ "It provides a continuous flow of oxygen.", "false" ] }, { "ans": [ "It uses chemical oxygen generators.", "false" ] } ] }, { "ch": "Why are oxygen cylinders sometimes filled to a higher pressure than their standard maximum pressure rating?", "ansGr": [ { "ans": [ "To compensate for the decrease in temperature and pressure at altitude.", "true" ] }, { "ans": [ "To increase the duration of oxygen supply.", "false" ] }, { "ans": [ "To account for potential leaks in the oxygen system.", "false" ] } ] }, { "ch": "What is the function of a calibrated orifice in a continuous-flow oxygen mask?", "ansGr": [ { "ans": [ "To control the flow rate of oxygen to the user.", "true" ] }, { "ans": [ "To filter out impurities in the oxygen.", "false" ] }, { "ans": [ "To prevent the mask from detaching.", "false" ] } ] }, { "ch": "Why is it important to record the remaining pressure in a cylinder after it has dispensed oxygen?", "ansGr": [ { "ans": [ "To track the usage and ensure cylinders are replaced when necessary.", "true" ] }, { "ans": [ "To calculate the cost of refilling the oxygen cylinders.", "false" ] }, { "ans": [ "To monitor the overall pressure in the oxygen filler cart manifold.", "false" ] } ] }, { "ch": "What is the primary advantage of chemical oxygen systems over gaseous oxygen systems in terms of safety?", "ansGr": [ { "ans": [ "Chemical oxygen systems do not produce oxygen until it is needed, reducing transportation and storage risks.", "true" ] }, { "ans": [ "Chemical oxygen systems are less likely to leak.", "false" ] }, { "ans": [ "Chemical oxygen systems are more resistant to damage.", "false" ] } ] }, { "ch": "How are chemical oxygen generators in an airliner's overhead passenger service units (PSUs) activated?", "ansGr": [ { "ans": [ "By pulling the mask down into a usable position.", "true" ] }, { "ans": [ "By pressing a button on the PSU.", "false" ] }, { "ans": [ "By a loud noise indicating depressurization.", "false" ] } ] }, { "ch": "Why is it important to avoid rapid decompression of oxygen systems?", "ansGr": [ { "ans": [ "To prevent heat build-up and possible ignition.", "true" ] }, { "ans": [ "To conserve oxygen.", "false" ] }, { "ans": [ "To prevent damage to the masks.", "false" ] } ] }, { "ch": "How does an EDS conserve oxygen compared to a continuous flow system?", "ansGr": [ { "ans": [ "By eliminating oxygen flow during the exhale and pause phases of breathing.", "true" ] }, { "ans": [ "By reducing the overall oxygen flow rate.", "false" ] }, { "ans": [ "By shutting off the oxygen supply when the user is not breathing.", "false" ] } ] }, { "ch": "What is the purpose of the emergency bypass switch on a permanently mounted EPD system?", "ansGr": [ { "ans": [ "To provide continuous oxygen flow in case of system malfunction.", "true" ] }, { "ans": [ "To allow the user to manually adjust the oxygen flow rate.", "false" ] }, { "ans": [ "To activate the system in case of a power failure.", "false" ] } ] }, { "ch": "What is the purpose of the diluter lever on an oxygen mask regulator?", "ansGr": [ { "ans": [ "To adjust the mix of oxygen and cabin air.", "true" ] }, { "ans": [ "To turn the oxygen flow on and off.", "false" ] }, { "ans": [ "To control the pressure of the oxygen delivered.", "false" ] } ] }, { "ch": "What is a cannula in an oxygen system?", "ansGr": [ { "ans": [ "A small tube that delivers oxygen directly into the nostrils.", "true" ] }, { "ans": [ "A valve that controls the flow of oxygen.", "false" ] }, { "ans": [ "A filter that removes impurities from the oxygen.", "false" ] } ] }, { "ch": "Why is the blowout disk typically located on the fuselage skin?", "ansGr": [ { "ans": [ "To make it easily visible during external inspections.", "true" ] }, { "ans": [ "To protect it from damage.", "false" ] }, { "ans": [ "To ensure it is accessible for maintenance.", "false" ] } ] }, { "ch": "What is the difference between a diluter-demand regulator and a pressure-demand regulator?", "ansGr": [ { "ans": [ "A pressure-demand regulator delivers oxygen under positive pressure.", "true" ] }, { "ans": [ "A diluter-demand regulator only delivers oxygen above 10,000 feet.", "false" ] }, { "ans": [ "A pressure-demand regulator does not mix oxygen with cabin air.", "false" ] } ] }, { "ch": "What is the purpose of the emergency setting on a diluter-demand regulator?", "ansGr": [ { "ans": [ "To bypass the demand function and provide a continuous flow of 100% oxygen.", "true" ] }, { "ans": [ "To shut off the oxygen flow completely.", "false" ] }, { "ans": [ "To increase the amount of cabin air mixed with the oxygen.", "false" ] } ] }, { "ch": "What is the main advantage of an electronic pulse demand oxygen system (EDS)?", "ansGr": [ { "ans": [ "It conserves oxygen by delivering it in pulses only during inhalation.", "true" ] }, { "ans": [ "It is simpler and cheaper than other systems.", "false" ] }, { "ans": [ "It delivers a continuous flow of oxygen, ensuring a constant supply.", "false" ] } ] }, { "ch": "How do flow indicators in continuous flow oxygen systems help users?", "ansGr": [ { "ans": [ "They provide a visual indication of oxygen flow and allow for flow rate adjustment.", "true" ] }, { "ans": [ "They warn the user if the oxygen supply is low.", "false" ] }, { "ans": [ "They automatically adjust the oxygen flow rate based on altitude.", "false" ] } ] }, { "ch": "What is a key safety precaution when working on oxygen systems?", "ansGr": [ { "ans": [ "Ensure the system is depressurized and purged before starting work.", "true" ] }, { "ans": [ "Use standard aircraft lubricants on oxygen system components.", "false" ] }, { "ans": [ "Work in a confined space to prevent oxygen leakage.", "false" ] } ] }, { "ch": "Why is it important to avoid using oil or grease on oxygen system components?", "ansGr": [ { "ans": [ "Oil and grease can react with oxygen and cause a fire.", "true" ] }, { "ans": [ "Oil and grease can clog oxygen lines.", "false" ] }, { "ans": [ "Oil and grease can damage oxygen masks and regulators.", "false" ] } ] }, { "ch": "What is the purpose of the \"oxygen\" markings and placards found on aircraft?", "ansGr": [ { "ans": [ "To clearly identify oxygen components and prevent improper servicing.", "true" ] }, { "ans": [ "To indicate the direction of oxygen flow.", "false" ] }, { "ans": [ "To warn of the dangers of high-pressure oxygen.", "false" ] } ] }, { "ch": "What is the primary function of a smoke hood?", "ansGr": [ { "ans": [ "To protect the user's eyes, nose, and mouth from smoke and fumes.", "true" ] }, { "ans": [ "To provide a higher concentration of oxygen than a regular mask.", "false" ] }, { "ans": [ "To be used by passengers in case of a cabin fire.", "false" ] } ] }, { "ch": "What type of oxygen system is most likely to be found on a modern fighter jet?", "ansGr": [ { "ans": [ "On-Board Oxygen Generating System (OBOGS)", "true" ] }, { "ans": [ "Liquid Oxygen (LOX) system", "false" ] }, { "ans": [ "Gaseous oxygen system with pressure-demand masks", "false" ] } ] }, { "ch": "What is a Dewar bottle used for in an oxygen system?", "ansGr": [ { "ans": [ "To store and convert liquid oxygen (LOX) to gaseous oxygen.", "true" ] }, { "ans": [ "To filter out impurities from gaseous oxygen", "false" ] }, { "ans": [ "To measure the flow rate of oxygen.", "false" ] } ] }, { "ch": "What is the purpose of the temperature compensation chart used when filling oxygen cylinders?", "ansGr": [ { "ans": [ "To adjust the filling pressure based on the ambient temperature.", "true" ] }, { "ans": [ "To determine the correct type of oxygen to use", "false" ] }, { "ans": [ "To calculate the remaining service life of the cylinder.", "false" ] } ] }, { "ch": "What can be inferred about the purpose of the blinking device or colored pith object in demand-flow oxygen system indicators?", "ansGr": [ { "ans": [ "To confirm that oxygen is being delivered when the user inhales.", "true" ] }, { "ans": [ "To indicate the remaining amount of oxygen.", "false" ] }, { "ans": [ "To warn the user of a leak in the oxygen system.", "false" ] } ] }, { "ch": "What is the primary reason for oxygen system maintenance?", "ansGr": [ { "ans": [ "To ensure the system is functioning correctly and safely.", "true" ] }, { "ans": [ "To reduce the weight of the system.", "false" ] }, { "ans": [ "To increase the lifespan of the oxygen cylinders.", "false" ] } ] }, { "ch": "What type of leak detection fluid should be used in oxygen systems?", "ansGr": [ { "ans": [ "An oxygen-safe, soapy solution that is free of contaminants.", "true" ] }, { "ans": [ "Any standard aircraft leak detection fluid.", "false" ] }, { "ans": [ "Plain water with a small amount of dish soap.", "false" ] } ] }, { "ch": "What is the primary hazard associated with adiabatic compression in oxygen systems?", "ansGr": [ { "ans": [ "It can generate high temperatures, leading to fire or explosion.", "true" ] }, { "ans": [ "It can cause leaks in the oxygen lines.", "false" ] }, { "ans": [ "It can reduce the flow rate of oxygen to the user.", "false" ] } ] }, { "ch": "What is the procedure for draining an oxygen system?", "ansGr": [ { "ans": [ "It involves safely releasing oxygen into the atmosphere.", "true" ] }, { "ans": [ "It requires complete disassembly of the system", "false" ] }, { "ans": [ "It is not necessary to drain an oxygen system.", "false" ] } ] }, { "ch": "What is the significance of the oxygen cylinder service life?", "ansGr": [ { "ans": [ "Cylinders must be removed from service after a specified time or number of fillings", "true" ] }, { "ans": [ "Service life is irrelevant as long as the cylinder passes the hydrostatic test.", "false" ] }, { "ans": [ "Oxygen cylinders have an indefinite service life", "false" ] } ] }, { "ch": "If a mechanic notices a fluid leak near an oxygen line during a routine inspection, what should they do?", "ansGr": [ { "ans": [ "Immediately report the leak and avoid any further work on the system until the leak is identified and repaired.", "true" ] }, { "ans": [ "Wipe up the leak and continue the inspection.", "false" ] }, { "ans": [ "Tighten any nearby fittings to try to stop the leak.", "false" ] } ] }, { "ch": "Why is it important to avoid using adhesive tape on oxygen systems?", "ansGr": [ { "ans": [ "It can react with oxygen and ignite.", "true" ] }, { "ans": [ "It can leave residue that contaminates the oxygen.", "false" ] }, { "ans": [ "It can restrict the flow of oxygen in the system.", "false" ] } ] }, { "part": "M11.16 ATA 36", "ch": "Which component is responsible for removing moisture from the oil plumping system?", "ansGr": [ { "ans": [ "Oil separator", "true" ] }, { "ans": [ "Oil tank", "false" ] }, { "ans": [ "Oil tube", "false" ] } ] }, { "ch": "What type of containers are typically used in high pressure pneumatic systems for emergency use?", "ansGr": [ { "ans": [ "Pressurized air or nitrogen containers", "true" ] }, { "ans": [ "Hydraulic fluid reservoirs", "false" ] }, { "ans": [ "Vacuum chambers", "false" ] } ] }, { "ch": "What should be on a high pressure pneumatic reservoir?", "ansGr": [ { "ans": [ "The date of manufacture and safe working pressure", "true" ] }, { "ans": [ "Expiry date", "false" ] }, { "ans": [ "Pressure in reserve", "false" ] } ] }, { "ch": "How many ports does a typical high-pressure storage bottle has?", "ansGr": [ { "ans": [ "2", "true" ] }, { "ans": [ "3", "false" ] }, { "ans": [ "4", "false" ] } ] }, { "ch": "What type of compressors are typically used in high-pressure pneumatic systems?", "ansGr": [ { "ans": [ "Oil lubricated compressors", "true" ] }, { "ans": [ "Water-cooled compressors", "false" ] }, { "ans": [ "Electric compressors only", "false" ] } ] }, { "ch": "What is the purpose of check valve?", "ansGr": [ { "ans": [ "Prevent backflow", "true" ] }, { "ans": [ "Prevent excess pressure", "false" ] }, { "ans": [ "Allow backflow", "false" ] } ] }, { "ch": "How to check the lubricating oil level of the air compressor?", "ansGr": [ { "ans": [ "In accordance with the applicable manufacturer’s instructions", "true" ] }, { "ans": [ "Weekly", "false" ] }, { "ans": [ "No need", "false" ] } ] }, { "ch": "What is the function of the control valve in a high-pressure pneumatic reservoir?", "ansGr": [ { "ans": [ "To keep air trapped inside the bottle until needed", "true" ] }, { "ans": [ "To measure the temperature of the air inside", "false" ] }, { "ans": [ "To filter impurities from the air", "false" ] } ] }, { "ch": "What is the purpose of pressure reducing valves in a high pressure pneumatic system?", "ansGr": [ { "ans": [ "To lower the system pressure for specific components", "true" ] }, { "ans": [ "To increase the system pressure for all components", "false" ] }, { "ans": [ "To monitor the temperature of the pneumatic fluid", "false" ] } ] }, { "ch": "What does high pressure pneumatic system maintenance include?", "ansGr": [ { "ans": [ "Servicing, troubleshooting, removal/installation of components, and operational testing", "true" ] }, { "ans": [ "Servicing, troubleshooting, removal/installation of components", "false" ] }, { "ans": [ "Removal/installation of components, and operational testing", "false" ] } ] }, { "ch": "What is the purpose of an isolation valve in a medium pressure pneumatic system?", "ansGr": [ { "ans": [ "Separate the pneumatic manifold from engine bleed air supply", "true" ] }, { "ans": [ "Prevent backflow", "false" ] }, { "ans": [ "Prevent excess pressure", "false" ] } ] }, { "ch": "How does a bleed air pneumatic system normally store pneumatic air?", "ansGr": [ { "ans": [ "Bleed air pneumatic system normally does not store pneumatic air in any particular container", "true" ] }, { "ans": [ "Bleed air pneumatic system store pneumatic air in a composite container", "false" ] }, { "ans": [ "Bleed air pneumatic system store pneumatic air in a stainless steel container", "false" ] } ] }, { "ch": "What type of valve is used to control the flow of pneumatic air from the APU?", "ansGr": [ { "ans": [ "Shutoff valve", "true" ] }, { "ans": [ "Isolation valve", "false" ] }, { "ans": [ "Check valve", "false" ] } ] }, { "ch": "Which compressor supplies the bulk of the pneumatic system demand?", "ansGr": [ { "ans": [ "Intermediate stage compressor", "true" ] }, { "ans": [ "Low stage compressor", "false" ] }, { "ans": [ "High stage", "false" ] } ] }, { "ch": "What is the diameter of the medium pressure pneumatic system?", "ansGr": [ { "ans": [ "3-4 inch", "true" ] }, { "ans": [ "2-3 inch", "false" ] }, { "ans": [ "4-5 inch", "false" ] } ] }, { "ch": "What is the normal temperature in the pneumatic manifold?", "ansGr": [ { "ans": [ "200°C", "true" ] }, { "ans": [ "100°C", "false" ] }, { "ans": [ "300°C", "false" ] } ] }, { "ch": "How to see the temperature of the air in the pneumatic manifold in the cockpit?", "ansGr": [ { "ans": [ "Using a gauge", "true" ] }, { "ans": [ "Using a clock", "false" ] }, { "ans": [ "using a ruler", "false" ] } ] }, { "ch": "What information does the air synoptic display show?", "ansGr": [ { "ans": [ "Duct pressure", "true" ] }, { "ans": [ "Check valve position", "false" ] }, { "ans": [ "Air compressor status", "false" ] } ] }, { "ch": "What does the X symbol on the isolation valve on the maintenance page mean?", "ansGr": [ { "ans": [ "The valve has failed or the switch on the bleed air/pressurization panel for the valve is in the non-normal position", "true" ] }, { "ans": [ "Valve is open", "false" ] }, { "ans": [ "Valve is close", "false" ] } ] }, { "ch": "What is the main difference between single-use high-pressure pneumatic systems and rechargeable systems?", "ansGr": [ { "ans": [ "Rechargeable systems allow the pneumatic system to operate components repeatedly rather than just once.", "true" ] }, { "ans": [ "Single-use systems only use nitrogen, while rechargeable systems use air.", "false" ] }, { "ans": [ "Single-use systems have compressors, while rechargeable systems do not.", "false" ] } ] }, { "ch": "What is a characteristic of single-use high-pressure pneumatic systems?", "ansGr": [ { "ans": [ "They are completely discharged after use.", "true" ] }, { "ans": [ "They are recharged by compressors during flight.", "false" ] }, { "ans": [ "They can only use nitrogen gas.", "false" ] } ] }, { "ch": "What are the main sources for high-pressure pneumatic systems on aircraft?", "ansGr": [ { "ans": [ "Engine-driven compressors, other on-board compressors, ground air, and ground nitrogen sources.", "true" ] }, { "ans": [ "Engine-driven compressors, other on-board compressors, and ground nitrogen sources.", "false" ] }, { "ans": [ "Engine-driven compressors, other on-board compressors, ground air, ground nitrogen sources and Solar-powered compressors.", "false" ] } ] }, { "ch": "At what pressures is air typically stored in metal bottles for high-pressure systems?", "ansGr": [ { "ans": [ "1000 to 3000 psi", "true" ] }, { "ans": [ "3000 to 5000 psi", "false" ] }, { "ans": [ "500 to 1000 psi", "false" ] } ] }, { "ch": "What material is the high-pressure storage cylinder typically made of?", "ansGr": [ { "ans": [ "Wire-wrapped steel", "true" ] }, { "ans": [ "Solid aluminum", "false" ] }, { "ans": [ "Plastic composite", "false" ] } ] }, { "ch": "How is a high-pressure bottle typically charged in a pneumatic system?", "ansGr": [ { "ans": [ "With either an on-board compressor or a ground source.", "true" ] }, { "ans": [ "Using only nitrogen gas.", "false" ] }, { "ans": [ "Only with a ground-operated compressor.", "false" ] } ] }, { "ch": "What is the purpose of the high-pressure pneumatic back-up system in some aircraft?", "ansGr": [ { "ans": [ "To extend the landing gear or actuate the brakes if the main system fails", "true" ] }, { "ans": [ "To operate the engines", "false" ] }, { "ans": [ "To control the cabin pressure", "false" ] } ] }, { "ch": "Where is the nitrogen for emergency landing gear extension stored?", "ansGr": [ { "ans": [ "In two bottles, one on each side of the nose wheel well", "true" ] }, { "ans": [ "In the main hydraulic reservoir", "false" ] }, { "ans": [ "In one bottle located in the cockpit", "false" ] } ] }, { "ch": "What does the dump valve do during the emergency landing gear extension?", "ansGr": [ { "ans": [ "It isolates the landing gear system from the hydraulic system.", "true" ] }, { "ans": [ "It recharges the hydraulic system.", "false" ] }, { "ans": [ "It releases nitrogen from the system.", "false" ] } ] }, { "ch": "What is a similarity between rechargeable pneumatic systems and hydraulic systems?", "ansGr": [ { "ans": [ "Both can operate components repeatedly.", "true" ] }, { "ans": [ "Both require nitrogen containers to function.", "false" ] }, { "ans": [ "Both do not use compressors during flight.", "false" ] } ] }, { "ch": "How are nitrogen storage containers for pneumatic systems typically filled?", "ansGr": [ { "ans": [ "Using ground-based compressors or high-pressure bottle transfer.", "true" ] }, { "ans": [ "By absorbing nitrogen from the atmosphere.", "false" ] }, { "ans": [ "Using only on-board compressors.", "false" ] } ] }, { "ch": "What information is stamped on the high-pressure storage cylinder?", "ansGr": [ { "ans": [ "The date of manufacture, safe working pressure, and the last hydrostatic test date", "true" ] }, { "ans": [ "The serial number, manufacturer’s name, and cylinder color", "false" ] }, { "ans": [ "The type of gas contained and storage temperature", "false" ] } ] }, { "ch": "Why is a standpipe commonly used at the discharge port of the container?", "ansGr": [ { "ans": [ "To prevent water collected inside the container from entering the system", "true" ] }, { "ans": [ "To reduce the speed of air exiting the container", "false" ] }, { "ans": [ "To increase the air pressure as it exits", "false" ] } ] }, { "ch": "What type of high-pressure systems use this type of container with a standpipe?", "ansGr": [ { "ans": [ "Both one-time and multi-deployment systems", "true" ] }, { "ans": [ "Only one-time use systems", "false" ] }, { "ans": [ "Only multi-deployment systems", "false" ] } ] }, { "ch": "What is the purpose of the control valve on a high-pressure storage bottle?", "ansGr": [ { "ans": [ "It traps air inside the bottle until the system is operated.", "true" ] }, { "ans": [ "It prevents nitrogen from entering the bottle.", "false" ] }, { "ans": [ "It regulates the bottle's charging pressure.", "false" ] } ] }, { "ch": "What type of lines are used to distribute pneumatic power in high-pressure systems?", "ansGr": [ { "ans": [ "High-pressure steel or stainless steel lines", "true" ] }, { "ans": [ "Plastic or composite lines", "false" ] }, { "ans": [ "Copper or aluminum lines", "false" ] } ] }, { "ch": "What role does a shuttle valve play in one-time or emergency pneumatic systems?", "ansGr": [ { "ans": [ "It closes off normal system flow and allows high-pressure air to operate the component.", "true" ] }, { "ans": [ "It traps air inside the compressor.", "false" ] }, { "ans": [ "It increases system pressure.", "false" ] } ] }, { "ch": "Why are pressure regulators and relief valves important in a high-pressure pneumatic system?", "ansGr": [ { "ans": [ "They control the pressure and limit excess pressure in case of regulator failure.", "true" ] }, { "ans": [ "They allow continuous air flow to all components.", "false" ] }, { "ans": [ "They prevent air from entering the system.", "false" ] } ] }, { "ch": "How does high-pressure nitrogen function in the emergency back-up system?", "ansGr": [ { "ans": [ "It applies pressure to move hydraulic fluid to the actuator", "true" ] }, { "ans": [ "It powers the electrical system", "false" ] }, { "ans": [ "It directly actuates the landing gear and brakes", "false" ] } ] }, { "ch": "What must maintenance personnel do once the nitrogen bottles are depleted?", "ansGr": [ { "ans": [ "Recharge them with nitrogen", "true" ] }, { "ans": [ "Replace them with new bottles", "false" ] }, { "ans": [ "Refill them with hydraulic fluid", "false" ] } ] }, { "ch": "How long does it take to vent nitrogen from the emergency landing gear extension system?", "ansGr": [ { "ans": [ "Approximately 30 seconds", "true" ] }, { "ans": [ "Approximately 10 seconds", "false" ] }, { "ans": [ "Approximately 1 minute", "false" ] } ] }, { "ch": "What happens when the EMER LDG GEAR handle is pulled fully outward?", "ansGr": [ { "ans": [ "Nitrogen is released to the landing gear selector/dump valve.", "true" ] }, { "ans": [ "The hydraulic system pressure is increased.", "false" ] }, { "ans": [ "The landing gear doors close.", "false" ] } ] }, { "ch": "What indicates that the dump valve has been activated?", "ansGr": [ { "ans": [ "A blue DUMP legend on the LDG GR DUMP switch", "true" ] }, { "ans": [ "A green DOWN AND LOCKED light on the landing gear control panel", "false" ] }, { "ans": [ "A red light in the landing gear control handle", "false" ] } ] }, { "ch": "Where is the LDG GR DUMP switch located?", "ansGr": [ { "ans": [ "On the flight deck overhead panel", "true" ] }, { "ans": [ "Next to the landing gear control handle", "false" ] }, { "ans": [ "On the side of the F/O", "false" ] } ] }, { "ch": "What is illuminated once the landing gear is fully extended and locked?", "ansGr": [ { "ans": [ "Three green DOWN AND LOCKED lights", "true" ] }, { "ans": [ "A blue DUMP legend on the LDG GR DUMP switch", "false" ] }, { "ans": [ "A red DUMP light on the dump valve switch", "false" ] } ] }, { "ch": "What is the purpose of purging the pneumatic system?", "ansGr": [ { "ans": [ "To remove contamination, moisture, or oil from the system", "true" ] }, { "ans": [ "To refill the system with nitrogen", "false" ] }, { "ans": [ "To increase the system’s pressure", "false" ] } ] }, { "ch": "What should be done after adding oil to the compressor oil tank?", "ansGr": [ { "ans": [ "Torque and secure the filler plug with safety wire", "true" ] }, { "ans": [ "Purge the system immediately", "false" ] }, { "ans": [ "Run the compressor to check the oil level", "false" ] } ] }, { "ch": "What is the purpose of the isolation valve in the pneumatic manifold?", "ansGr": [ { "ans": [ "To turn the bleed air supply ON and OFF for each engine", "true" ] }, { "ans": [ "To increase the pressure in the manifold", "false" ] }, { "ans": [ "To regulate the air temperature", "false" ] } ] }, { "ch": "What does the APU use to supply air to the pneumatic manifold?", "ansGr": [ { "ans": [ "A dedicated load compressor", "true" ] }, { "ans": [ "The ground pneumatic air supply adapter", "false" ] }, { "ans": [ "A bleed air tap from the compressor section of the engine", "false" ] } ] }, { "ch": "What is the main source of air for a medium pressure pneumatic system?", "ansGr": [ { "ans": [ "Bleed air from the compressor section of a turbine engine", "true" ] }, { "ans": [ "Hydraulic pump", "false" ] }, { "ans": [ "Air bottle/storage reservoir", "false" ] } ] }, { "ch": "Which component in a medium pressure pneumatic system controls the flow of bleed air from the APU?", "ansGr": [ { "ans": [ "Shutoff or regulating valve", "true" ] }, { "ans": [ "Pressure gauge", "false" ] }, { "ans": [ "Air bottle", "false" ] } ] }, { "ch": "What is the purpose of the pneumatic manifold in the bleed air system?", "ansGr": [ { "ans": [ "To route air to components like engine starters and wing anti-ice ducts", "true" ] }, { "ans": [ "To store hydraulic fluid for various systems on the aircraft, ensuring efficient operations", "false" ] }, { "ans": [ "To connect the engines directly to the hydraulic system for additional support", "false" ] } ] }, { "ch": "What is the primary source of air for the airliner pneumatic system under normal conditions?", "ansGr": [ { "ans": [ "Intermediate-stage compressor bleed air", "true" ] }, { "ans": [ "Air from the auxiliary power unit (APU)", "false" ] }, { "ans": [ "High-stage compressor bleed air", "false" ] } ] }, { "ch": "Which computer regulates the pneumatic system on a Boeing 777?", "ansGr": [ { "ans": [ "Air Supply Cabin Pressure Controller (ASCPC)", "true" ] }, { "ans": [ "Airfoil and Cowl Ice Protection System (ACIPS)", "false" ] }, { "ans": [ "Auxiliary Power Unit Controller (APUC)", "false" ] } ] }, { "ch": "What is the typical diameter of ducting used for high-volume components like engine starting and wing anti-ice?", "ansGr": [ { "ans": [ "3-4 inches", "true" ] }, { "ans": [ "5-6 inches", "false" ] }, { "ans": [ "1-2 inches", "false" ] } ] }, { "ch": "What happens when the bleed air temperature exceeds approximately 490°F on a Boeing 737?", "ansGr": [ { "ans": [ "A trip light illuminates, and the corresponding engine bleed valve closes.", "true" ] }, { "ans": [ "The isolation valve opens to reduce pressure and decrease the temperature in the affected area.", "false" ] }, { "ans": [ "The engine automatically shuts down to prevent any possible damage to other aircraft systems and ensure safety.", "false" ] } ] }, { "ch": "How is pneumatic manifold pressure monitored on twin-engine airliners?", "ansGr": [ { "ans": [ "Through a dual gauge connected to pressure transmitters for each engine", "true" ] }, { "ans": [ "Via a single gauge showing combined pressure for both engines", "false" ] }, { "ans": [ "By checking temperature switches that indicate abnormal pressure", "false" ] } ] }, { "ch": "What type of fluid does a pneumatic pump use?", "ansGr": [ { "ans": [ "Gas", "true" ] }, { "ans": [ "Oil", "false" ] }, { "ans": [ "Hydraulic", "false" ] } ] }, { "ch": "What are the properties of the air flow blown through the impeller of a centrifugal pump?", "ansGr": [ { "ans": [ "Increasing both the velocity and the pressure", "true" ] }, { "ans": [ "Increasing the velocity and decreasing the pressure", "false" ] }, { "ans": [ "Decreasing the velocity and increasing the pressure", "false" ] } ] }, { "ch": "What type of air compressor is commonly used on the engines of large aircraft?", "ansGr": [ { "ans": [ "Axial flow", "true" ] }, { "ans": [ "Centrifugal impeller", "false" ] }, { "ans": [ "Piston", "false" ] } ] }, { "ch": "What type of air compressor is used in APU?", "ansGr": [ { "ans": [ "Centrifugal compressor", "true" ] }, { "ans": [ "Axial compressor", "false" ] }, { "ans": [ "Displacement compressor", "false" ] } ] }, { "ch": "What is a warning sign in case of excessive pressure in the pneumatic manifold?", "ansGr": [ { "ans": [ "Advisory light", "true" ] }, { "ans": [ "Nothing", "false" ] }, { "ans": [ "Bell", "false" ] } ] }, { "ch": "In a twin-engine aircraft vacuum system, how is each vacuum pump driven?", "ansGr": [ { "ans": [ "By each engine of the aircraft", "true" ] }, { "ans": [ "By the vacuum manifold", "false" ] }, { "ans": [ "By the aircraft's electrical system", "false" ] } ] }, { "ch": "What is the purpose of the four-way selector valve in a twin-engine aircraft vacuum system?", "ansGr": [ { "ans": [ "To allow either pump to supply vacuum to the manifold", "true" ] }, { "ans": [ "To allow only one pump to supply vacuum to the manifold", "false" ] }, { "ans": [ "To allow both pumps to supply vacuum simultaneously to the system", "false" ] } ] }, { "ch": "Which component is used to reduce vacuum for the turn and bank indicators?", "ansGr": [ { "ans": [ "Needle valve", "true" ] }, { "ans": [ "Vacuum relief valve", "false" ] }, { "ans": [ "Check valve", "false" ] } ] }, { "ch": "In the main position of the turn-and-bank selector valve, what does the vacuum gauge display?", "ansGr": [ { "ans": [ "The vacuum in the lines of the artificial horizons and directional gyro", "true" ] }, { "ans": [ "No vacuum reading", "false" ] }, { "ans": [ "The vacuum for the turn and bank indicators", "false" ] } ] }, { "ch": "If one vacuum pump fails, how can the system continue to operate?", "ansGr": [ { "ans": [ "The remaining pump can supply vacuum through the manifold using the four-way selector valve", "true" ] }, { "ans": [ "The system will stop functioning", "false" ] }, { "ans": [ "The vacuum pressure will be maintained by the check valve", "false" ] } ] }, { "ch": "What is the purpose of the drain line in the twin-engine aircraft vacuum system?", "ansGr": [ { "ans": [ "To ensure no fluid accumulates at the lowest point in the system", "true" ] }, { "ans": [ "To maintain vacuum pressure in the system", "false" ] }, { "ans": [ "To connect vacuum-operated instruments to the four-way selector valve", "false" ] } ] }, { "ch": "What is the main type pump using for bleed system? ?", "ansGr": [ { "ans": [ "The pneumatically driven hydraulic pump", "true" ] }, { "ans": [ "The centrifugal Impeller Pump", "false" ] }, { "ans": [ "The vance pump", "false" ] } ] }, { "part": "M11.117 ATA 38", "ch": "Which aspect of the water system involves the removal of waste water?", "ansGr": [ { "ans": [ "Draining", "true" ] }, { "ans": [ "Distribution", "false" ] }, { "ans": [ "Supply", "false" ] } ] }, { "ch": "Where is potable water stored in an aircraft?", "ansGr": [ { "ans": [ "Below the cabin floor", "true" ] }, { "ans": [ "In the aft cabin", "false" ] }, { "ans": [ "In the overhead compartments", "false" ] } ] }, { "ch": "How are water servicing panels usually protected against icing?", "ansGr": [ { "ans": [ "By heating them", "true" ] }, { "ans": [ "By painting them black", "false" ] }, { "ans": [ "By insulating them with foam", "false" ] } ] }, { "ch": "What system typically pressurizes the potable water tanks in an aircraft?", "ansGr": [ { "ans": [ "Pneumatic system", "true" ] }, { "ans": [ "Electrical system", "false" ] }, { "ans": [ "Hydraulic system", "false" ] } ] }, { "ch": "How is water pushed through distribution lines to lavatories and galleys?", "ansGr": [ { "ans": [ "By pressure inside the tanks", "true" ] }, { "ans": [ "By gravity", "false" ] }, { "ans": [ "By manual pumping", "false" ] } ] }, { "ch": "Where are in-line electric element heaters typically installed in the water system?", "ansGr": [ { "ans": [ "Upstream of all hot water faucets", "true" ] }, { "ans": [ "Downstream of all cold water faucets", "false" ] }, { "ans": [ "Inside the water tanks", "false" ] } ] }, { "ch": "Why is it necessary to completely drain the water system before disinfecting it?", "ansGr": [ { "ans": [ "To prevent contamination and ensure proper disinfection", "true" ] }, { "ans": [ "To improve fuel efficiency", "false" ] }, { "ans": [ "To reduce the aircraft's weight", "false" ] } ] }, { "ch": "Where is waste deposited in a vacuum flush system?", "ansGr": [ { "ans": [ "In a waste holding tank", "true" ] }, { "ans": [ "In a separate container inside the toilet bowl", "false" ] }, { "ans": [ "In a holding tank under each toilet", "false" ] } ] }, { "ch": "How long is potable water injected to rinse the toilet when flushed?", "ansGr": [ { "ans": [ "For 1 second", "true" ] }, { "ans": [ "For 5 seconds", "false" ] }, { "ans": [ "For 10 seconds", "false" ] } ] }, { "ch": "What must be observed to avoid damage to the water tank during filling?", "ansGr": [ { "ans": [ "Maximum water fill pressure", "true" ] }, { "ans": [ "Maximum water fill temperature", "false" ] }, { "ans": [ "Maximum water fill volume", "false" ] } ] }, { "ch": "What type of valve allows filling of the passenger water system?", "ansGr": [ { "ans": [ "Fill/overflow valve", "true" ] }, { "ans": [ "Check valve", "false" ] }, { "ans": [ "Relief valve", "false" ] } ] }, { "ch": "What is the function of the overfill drain line in the water system?", "ansGr": [ { "ans": [ "To drain excess water overboard", "true" ] }, { "ans": [ "To increase water pressure", "false" ] }, { "ans": [ "To control water temperature", "false" ] } ] }, { "ch": "What devices are used to prevent ice in the water system in cold sections?", "ansGr": [ { "ans": [ "Heat tapes, inline heaters, and heated hoses", "true" ] }, { "ans": [ "Cooling fans and thermostats", "false" ] }, { "ans": [ "Metal insulators and air filters", "false" ] } ] }, { "ch": "What prevents splash tank contents in the toilet system?", "ansGr": [ { "ans": [ "A separator", "true" ] }, { "ans": [ "A filter", "false" ] }, { "ans": [ "A heater", "false" ] } ] }, { "ch": "What additional function does the flush control module perform besides opening and closing the flu sh valve?", "ansGr": [ { "ans": [ "It opens a rinse valve to release potable water", "true" ] }, { "ans": [ "It heats the toilet seat", "false" ] }, { "ans": [ "It cleans the water basin", "false" ] } ] }, { "ch": "How is the vacuum flush system connected to the aircraft's systems?", "ansGr": [ { "ans": [ "Through the aircraft’s central monitoring system and the cabin services system", "true" ] }, { "ans": [ "Via the navigation system", "false" ] }, { "ans": [ "Through the engine control system", "false" ] } ] }, { "ch": "What are the positions of the lavatory drain valve?", "ansGr": [ { "ans": [ "OFF, DRAIN, and ON", "true" ] }, { "ans": [ "OPEN, CLOSE, and LOCK", "false" ] }, { "ans": [ "FILL, EMPTY, and NEUTRAL", "false" ] } ] }, { "ch": "The suction for toilet flushing is made ?", "ansGr": [ { "ans": [ "By an electric vacuum blower when aircraft on ground", "true" ] }, { "ans": [ "By the differential pressure between the cabin pressure and the outside air pressure below 16000 feet", "false" ] }, { "ans": [ "By an electric pump located downstream each waste line", "false" ] } ] }, { "ch": "Why are lavatories and galleys in aircraft highly susceptible to corrosion?", "ansGr": [ { "ans": [ "Due to the presence of water", "true" ] }, { "ans": [ "Due to high altitude", "false" ] }, { "ans": [ "Due to air pressure", "false" ] } ] }, { "ch": "What is applied to the structure as an anti-corrosion measure?", "ansGr": [ { "ans": [ "Corrosion Preventative Fluids (CPFs)", "true" ] }, { "ans": [ "Paint", "false" ] }, { "ans": [ "Lubricant", "false" ] } ] }, { "ch": "What needs to be done if leaks in the toilet system are detected?", "ansGr": [ { "ans": [ "Trace and cure the leaks", "true" ] }, { "ans": [ "Paint the affected area", "false" ] }, { "ans": [ "Reduce air pressure", "false" ] } ] }, { "ch": "What additional method is used to protect the floor before lavatories and galleys are installed?", "ansGr": [ { "ans": [ "Applying a Mylar moisture barrier", "true" ] }, { "ans": [ "Painting the floor with waterproof paint", "false" ] }, { "ans": [ "Installing metal sheets", "false" ] } ] }, { "ch": "What precaution must be taken when applying CPF?", "ansGr": [ { "ans": [ "Use in well-ventilated areas and wear face masks", "true" ] }, { "ans": [ "Use only in cold temperatures", "false" ] }, { "ans": [ "Mix with water before use", "false" ] } ] }, { "ch": "How can floor panels be sealed to prevent fluid from getting into the structure?", "ansGr": [ { "ans": [ "By using tape and two-part sealants", "true" ] }, { "ans": [ "By using metal plates", "false" ] }, { "ans": [ "By covering them with plastic sheets", "false" ] } ] }, { "part": "M11.18 ATA 45", "ch": "What is the purpose of onboard maintenance systems in modern aircraft?", "ansGr": [ { "ans": [ "To facilitate maintenance by monitoring and storing fault data.", "true" ] }, { "ans": [ "To control the flight navigation system.", "false" ] }, { "ans": [ "To manage passenger information.", "false" ] } ] }, { "ch": "What are central maintenance computers (CMCs) used for in an onboard maintenance system?", "ansGr": [ { "ans": [ "They process inputs from various systems and provide outputs.", "true" ] }, { "ans": [ "They control the aircraft’s navigation.", "false" ] }, { "ans": [ "They handle communications with air traffic control.", "false" ] } ] }, { "ch": "Where is the Multipurpose Control Display Unit (MCDU) located on an Airbus A330?", "ansGr": [ { "ans": [ "On the pedestal in the cockpit.", "true" ] }, { "ans": [ "In the aircraft's cargo hold.", "false" ] }, { "ans": [ "Inside the engine compartment.", "false" ] } ] }, { "ch": "What does BITE stand for in aircraft maintenance systems?", "ansGr": [ { "ans": [ "Built-In Test Equipment.", "true" ] }, { "ans": [ "Basic Internal Testing Equipment.", "false" ] }, { "ans": [ "Battery Inspection Terminal Equipment.", "false" ] } ] }, { "ch": "What storage medium was used in early data loading systems?", "ansGr": [ { "ans": [ "Floppy disks.", "true" ] }, { "ans": [ "USB flash drives.", "false" ] }, { "ans": [ "Optical discs.", "false" ] } ] }, { "ch": "What type of printer is commonly used in aircraft according to ARINC Standard 744A?", "ansGr": [ { "ans": [ "Thermal printer.", "true" ] }, { "ans": [ "Inkjet printer.", "false" ] }, { "ans": [ "Dot matrix printer.", "false" ] } ] }, { "ch": "How do onboard maintenance systems assist maintenance personnel on the ground?", "ansGr": [ { "ans": [ "By providing fault information for testing and troubleshooting.", "true" ] }, { "ans": [ "By controlling the aircraft’s engine functions.", "false" ] }, { "ans": [ "By sending passenger data to ground control.", "false" ] } ] }, { "ch": "What is the role of the ACARS system when it is connected to the CMC?", "ansGr": [ { "ans": [ "To relay critical fault information to maintenance personnel before the aircraft lands", "true" ] }, { "ans": [ "To communicate directly with the aircraft’s VHF and SATCOM systems to the cockpit.", "false" ] }, { "ans": [ "To serve as a standby system for the CMC during onboard maintenance.", "false" ] } ] }, { "ch": "What information can be accessed through the MCDU in the cockpit?", "ansGr": [ { "ans": [ "Current and historical fault data.", "true" ] }, { "ans": [ "Passenger list and seating arrangement.", "false" ] }, { "ans": [ "Weather reports from air traffic control.", "false" ] } ] }, { "ch": "What is the function of the watchdog in BITE systems?", "ansGr": [ { "ans": [ "Continuous monitoring of system parameters for faults.", "true" ] }, { "ans": [ "Real-time monitoring of the flight path.", "false" ] }, { "ans": [ "Backup for the navigation system.", "false" ] } ] }, { "ch": "How does a strain sensor used in structure monitoring detect deformation?", "ansGr": [ { "ans": [ "By measuring changes in electrical resistance.", "true" ] }, { "ans": [ "By recording pressure variations.", "false" ] }, { "ans": [ "By capturing temperature fluctuations.", "false" ] } ] }, { "ch": "What kind of faults are stored but not displayed to the flight crew in Class 3 faults?", "ansGr": [ { "ans": [ "Minor discrepancies that don’t affect aircraft operation.", "true" ] }, { "ans": [ "Major faults that can ground the aircraft.", "false" ] }, { "ans": [ "Critical navigation errors.", "false" ] } ] }, { "ch": "How do central maintenance computers (CMCs) classify faults in an Airbus A330?", "ansGr": [ { "ans": [ "Into Class 1, Class 2, and Class 3 based on severity.", "true" ] }, { "ans": [ "As high, medium, and low priority.", "false" ] }, { "ans": [ "By their effect on passenger comfort.", "false" ] } ] }, { "ch": "How do maintenance personnel update databases in the Electronic Library System (ELS)?", "ansGr": [ { "ans": [ "By using the data loading system.", "true" ] }, { "ans": [ "By connecting the aircraft to Wi-Fi.", "false" ] }, { "ans": [ "By manually inputting updates through the cockpit.", "false" ] } ] }, { "ch": "Which type of bus is commonly used to connect BITE systems to the CMC?", "ansGr": [ { "ans": [ "ARINC 429 bus.", "true" ] }, { "ans": [ "Ethernet bus.", "false" ] }, { "ans": [ "USB bus.", "false" ] } ] }, { "ch": "How often must the navigation database of an aircraft be updated?", "ansGr": [ { "ans": [ "Every 28 days.", "true" ] }, { "ans": [ "Every 7 days.", "false" ] }, { "ans": [ "Every 6 months.", "false" ] } ] }, { "ch": "What occurs during the BITE power-up check?", "ansGr": [ { "ans": [ "A system test is automatically performed to check for faults.", "true" ] }, { "ans": [ "The CMC is rebooted for manual testing.", "false" ] }, { "ans": [ "The aircraft’s navigation system is recalibrated.", "false" ] } ] }, { "ch": "What is the purpose of the Minimum Equipment List (MEL) in relation to CMC fault data?", "ansGr": [ { "ans": [ "To determine which faults must be corrected before flight.", "true" ] }, { "ans": [ "To manage passenger seating during faults.", "false" ] }, { "ans": [ "To update the aircraft’s weather database.", "false" ] } ] }, { "ch": "What is the primary difference between Class 1 and Class 2 faults?", "ansGr": [ { "ans": [ "Class 1 faults affect operational capability, while Class 2 faults do not.", "true" ] }, { "ans": [ "Class 2 faults require immediate attention.", "false" ] }, { "ans": [ "Class 1 faults are related to minor errors in the system.", "false" ] } ] }, { "ch": "What communication system is used to relay CMC fault data to ground stations?", "ansGr": [ { "ans": [ "ACARS (Aircraft Communications Reporting and Addressing System).", "true" ] }, { "ans": [ "GPS system.", "false" ] }, { "ans": [ "Satellite phone.", "false" ] } ] }, { "ch": "What type of faults trigger cockpit warnings for the flight crew?", "ansGr": [ { "ans": [ "Class 1 faults.", "true" ] }, { "ans": [ "Class 3 faults.", "false" ] }, { "ans": [ "Non-critical faults.", "false" ] } ] }, { "ch": "Which data format is used by aircraft printers to print high-resolution text and images?", "ansGr": [ { "ans": [ "ARINC Standard 744A.", "true" ] }, { "ans": [ "JPEG format.", "false" ] }, { "ans": [ "PDF format.", "false" ] } ] }, { "ch": "What happens when BITE detects a fault during its continuous monitoring process?", "ansGr": [ { "ans": [ "It alerts the CMC automatically.", "true" ] }, { "ans": [ "It powers down the system.", "false" ] }, { "ans": [ "It shuts down the affected component immediately.", "false" ] } ] }, { "ch": "What determines whether a fault must be fixed before the aircraft is dispatched?", "ansGr": [ { "ans": [ "The Minimum Equipment List (MEL).", "true" ] }, { "ans": [ "The flight crew’s discretion.", "false" ] }, { "ans": [ "The aircraft’s fuel level.", "false" ] } ] }, { "part": "M11.19 ATA 42", "ch": "What does the term \"avionics\" refer to?", "ansGr": [ { "ans": [ "Electronic systems used in aircraft", "true" ] }, { "ans": [ "Mechanical systems in aircraft", "false" ] }, { "ans": [ "Fuel systems of an aircraft", "false" ] } ] }, { "ch": "What does \"integrated\" mean in Integrated Modular Avionics (IMA)?", "ansGr": [ { "ans": [ "Combining multiple functions into a single piece of equipment", "true" ] }, { "ans": [ "Separating functions into multiple devices", "false" ] }, { "ans": [ "Connecting avionics systems through cables", "false" ] } ] }, { "ch": "What does \"modular\" mean in the context of IMA?", "ansGr": [ { "ans": [ "Dividing systems into replaceable modules", "true" ] }, { "ans": [ "Creating non-interchangeable components", "false" ] }, { "ans": [ "Using single-use systems for each function", "false" ] } ] }, { "ch": "How does IMA reduce the number of LRUs in an aircraft?", "ansGr": [ { "ans": [ "By integrating multiple functions into fewer LRUs", "true" ] }, { "ans": [ "By duplicating the same LRU for different systems", "false" ] }, { "ans": [ "By adding more wiring to each LRU", "false" ] } ] }, { "ch": "Why does IMA use fewer wires than traditional systems?", "ansGr": [ { "ans": [ "Integration of modules reduces unnecessary wiring", "true" ] }, { "ans": [ "Each module has separate wiring for each function", "false" ] }, { "ans": [ "IMA requires additional wiring for each component", "false" ] } ] }, { "ch": "What is the core function of a Digital Data Bus in an IMA system?", "ansGr": [ { "ans": [ "Transferring information between equipment", "true" ] }, { "ans": [ "Powering electrical systems", "false" ] }, { "ans": [ "Controlling fuel consumption", "false" ] } ] }, { "ch": "How does the use of digital data buses in IMA contribute to weight reduction?", "ansGr": [ { "ans": [ "Fewer wires are required to transfer data", "true" ] }, { "ans": [ "Digital data buses increase wiring complexity", "false" ] }, { "ans": [ "Each wire carries multiple signals simultaneously", "false" ] } ] }, { "ch": "What is a key feature of ARINC 429 in IMA systems?", "ansGr": [ { "ans": [ "It transfers data unidirectionally at speeds of up to 100 kbps", "true" ] }, { "ans": [ "It transfers data bidirectionally", "false" ] }, { "ans": [ "It is used for mechanical control signals", "false" ] } ] }, { "ch": "What is the main processing function of the core system in IMA?", "ansGr": [ { "ans": [ "It processes data from various sensors and controls", "true" ] }, { "ans": [ "It stores backup data for future use", "false" ] }, { "ans": [ "It only handles communication functions", "false" ] } ] }, { "ch": "Which of the following functions does the core system of IMA NOT perform?", "ansGr": [ { "ans": [ "Monitoring hydraulic pressure", "true" ] }, { "ans": [ "Calculating throttle settings", "false" ] }, { "ans": [ "Processing data for flight management", "false" ] } ] }, { "ch": "What is the role of network components in an IMA system?", "ansGr": [ { "ans": [ "They transfer data between the core system and other aircraft systems", "true" ] }, { "ans": [ "They store backup data for avionics", "false" ] }, { "ans": [ "They control the aircraft’s navigation system", "false" ] } ] }, { "ch": "What is the main benefit of using IMA in aircraft?", "ansGr": [ { "ans": [ "Reduction in bulk and weight of the avionics systems", "true" ] }, { "ans": [ "Increase in the number of LRUs installed", "false" ] }, { "ans": [ "Decrease in system reliability", "false" ] } ] }, { "ch": "Which function is typically integrated into an IMA system?", "ansGr": [ { "ans": [ "Brake Temperature Monitoring", "true" ] }, { "ans": [ "Wing structure control", "false" ] }, { "ans": [ "Passenger entertainment system", "false" ] } ] }, { "ch": "What is a major advantage of having a modular design in IMA systems?", "ansGr": [ { "ans": [ "Modules can be easily replaced or upgraded", "true" ] }, { "ans": [ "Systems cannot share modules", "false" ] }, { "ans": [ "Each system requires a separate module for every function", "false" ] } ] }, { "ch": "What is the role of power supplies in a traditional non-IMA avionics system?", "ansGr": [ { "ans": [ "Each LRU has its own power supply connected to the aircraft’s electrical system", "true" ] }, { "ans": [ "Power is shared between multiple LRUs", "false" ] }, { "ans": [ "Only one power supply is used for all avionics systems", "false" ] } ] }, { "ch": "What advantage does IMA offer in terms of fault tolerance?", "ansGr": [ { "ans": [ "Redundant power supplies prevent system failure even if one supply fails", "true" ] }, { "ans": [ "Each module operates completely independently", "false" ] }, { "ans": [ "The system automatically shuts down during a power failure", "false" ] } ] }, { "ch": "What is the primary data transfer format used by the Boeing 777 AIMS?", "ansGr": [ { "ans": [ "ARINC 629", "true" ] }, { "ans": [ "ARINC 429", "false" ] }, { "ans": [ "AFDX", "false" ] } ] }, { "ch": "What kind of data transfer rates are associated with ARINC 629?", "ansGr": [ { "ans": [ "Up to 2 Mbps", "true" ] }, { "ans": [ "Up to 12 kbps", "false" ] }, { "ans": [ "Up to 100 Mbps", "false" ] } ] }, { "ch": "Which system on the Boeing 777 uses IMA technology?", "ansGr": [ { "ans": [ "Airplane Information Management System (AIMS)", "true" ] }, { "ans": [ "Hydraulic control system", "false" ] }, { "ans": [ "Cargo management system", "false" ] } ] }, { "ch": "What is the function of Line Replaceable Modules (LRMs) in the 777 AIMS system?", "ansGr": [ { "ans": [ "They process information for avionics systems", "true" ] }, { "ans": [ "They control fuel management", "false" ] }, { "ans": [ "They store communication data", "false" ] } ] }, { "ch": "Which of the following is a feature of IMA systems used in the Boeing 777?", "ansGr": [ { "ans": [ "The use of digital data buses for interconnection", "true" ] }, { "ans": [ "Separate wiring for each avionics component", "false" ] }, { "ans": [ "Non-redundant power supplies", "false" ] } ] }, { "ch": "What display is used for aircraft pitch and roll attitude in the Boeing 777 AIMS?", "ansGr": [ { "ans": [ "Primary Flight Display (PFD)", "true" ] }, { "ans": [ "Navigation Display", "false" ] }, { "ans": [ "Multifunction Display", "false" ] } ] }, { "ch": "What kind of information is displayed on the EICAS in the Boeing 777 AIMS?", "ansGr": [ { "ans": [ "Engine operating parameters such as EPR and N1", "true" ] }, { "ans": [ "Weather radar data", "false" ] }, { "ans": [ "Compass heading information", "false" ] } ] }, { "ch": "Which IMA feature improves flexibility in cockpit displays?", "ansGr": [ { "ans": [ "The ability to switch functions between Display Units (DUs)", "true" ] }, { "ans": [ "Fixed display positions", "false" ] }, { "ans": [ "Display redundancy for power saving", "false" ] } ] }, { "ch": "Which display can show formats like Maintenance Page and Electronic Checklist?", "ansGr": [ { "ans": [ "MFD", "true" ] }, { "ans": [ "EICAS", "false" ] }, { "ans": [ "ND", "false" ] } ] }, { "ch": "What kind of information does the EICAS display provide?", "ansGr": [ { "ans": [ "Engine parameters and system alerts", "true" ] }, { "ans": [ "Navigation routes", "false" ] }, { "ans": [ "Weather radar", "false" ] } ] }, { "part": "M11.20 ATA 44", "ch": "What do cabin systems in an aircraft include?", "ansGr": [ { "ans": [ "Systems for communication and inflight entertainment (IFE)", "true" ] }, { "ans": [ "Only systems for emergency communication", "false" ] }, { "ans": [ "Only systems for the crew to communicate", "false" ] } ] }, { "ch": "What was used for passenger audio in early inflight entertainment (IFE) systems?", "ansGr": [ { "ans": [ "Pneumatic headsets", "true" ] }, { "ans": [ "Bluetooth headsets", "false" ] }, { "ans": [ "Wireless headphones", "false" ] } ] }, { "ch": "What can passengers use to call for assistance in the cabin?", "ansGr": [ { "ans": [ "Flight attendant call button", "true" ] }, { "ans": [ "Interphone system", "false" ] }, { "ans": [ "Cockpit panel", "false" ] } ] }, { "ch": "Which device in the cabin intercommunication system can be used by flight attendants to communicate?", "ansGr": [ { "ans": [ "Cabin handsets", "true" ] }, { "ans": [ "Control panels", "false" ] }, { "ans": [ "Passenger seats", "false" ] } ] }, { "ch": "What type of data connection is most commonly used within a cabin network service?", "ansGr": [ { "ans": [ "Wireless LAN", "true" ] }, { "ans": [ "Fiber optics", "false" ] }, { "ans": [ "Analog signals", "false" ] } ] }, { "ch": "What CIDS is stand for?", "ansGr": [ { "ans": [ "Cabin Intercommunication Data Systems", "true" ] }, { "ans": [ "Cabin Intercommunication Digital Systems", "false" ] }, { "ans": [ "Call Intercommunication Data Systems", "false" ] } ] }, { "ch": "How has inflight entertainment evolved over time?", "ansGr": [ { "ans": [ "It started with video projectors and has moved to digital displays at each seat.", "true" ] }, { "ans": [ "It began with audio-only headsets and now offers interactive screens in Business-class seats", "false" ] }, { "ans": [ "It started as a radio broadcast system for the entire cabin.", "false" ] } ] }, { "ch": "What role does the Cabin Systems Management Unit (CSMU) play in the 777 Cabin Services System?", "ansGr": [ { "ans": [ "It acts as the central processor for managing cabin services.", "true" ] }, { "ans": [ "It controls only the cabin lighting system.", "false" ] }, { "ans": [ "It monitors external communications.", "false" ] } ] }, { "ch": "What is the purpose of zone management units (ZMU) in the cabin system?", "ansGr": [ { "ans": [ "They manage cabin functions within each specific zone.", "true" ] }, { "ans": [ "They connect the entire cabin to the cockpit system.", "false" ] }, { "ans": [ "They control only the audio system.", "false" ] } ] }, { "ch": "Which system component allows for centralized control of the passenger address and cabin interphone functions?", "ansGr": [ { "ans": [ "The PA/CI (Passenger Address/Cabin Interphone) controller.", "true" ] }, { "ans": [ "The Cabin Attendant Handset (CAH).", "false" ] }, { "ans": [ "The Overhead Electronic Unit (OEU).", "false" ] } ] }, { "ch": "What unit in the 777 Cabin Services System is responsible for managing data specific to each cabin zone?", "ansGr": [ { "ans": [ "The Zone Management Unit (ZMU).", "true" ] }, { "ans": [ "The Cabin Systems Control Panel (CSCP).", "false" ] }, { "ans": [ "The Cabin Mass Memory System.", "false" ] } ] }, { "ch": "Why is demultiplexing important in the IFE system?", "ansGr": [ { "ans": [ "It reassembles data packets based on their addresses for individual seats.", "true" ] }, { "ans": [ "It compresses data to save bandwidth.", "false" ] }, { "ans": [ "It limits data delivery to specific zones.", "false" ] } ] }, { "ch": "How does the main IFE computer handle content requests from passengers?", "ansGr": [ { "ans": [ "By processing and sending requested data packets addressed to individual seats.", "true" ] }, { "ans": [ "By sending identical data to every passenger seat.", "false" ] }, { "ans": [ "By processing one request at a time per row.", "false" ] } ] }, { "ch": "How does multiplexing impact the speed of IFE data transfer?", "ansGr": [ { "ans": [ "It allows simultaneous, high-speed data flow to multiple destinations.", "true" ] }, { "ans": [ "It limits data flow to specific passenger seats.", "false" ] }, { "ans": [ "It increases load time by using a single address.", "false" ] } ] }, { "ch": "What are the main external network types used for cabin communication, and where are their antennas located?", "ansGr": [ { "ans": [ "Satellite-based systems with antennas on the upper fuselage and ground-based systems with antennas on the lower fuselage.", "true" ] }, { "ans": [ "Ground-based systems with antennas on the upper fuselage and satellite-based systems with antennas on the wings.", "false" ] }, { "ans": [ "Both systems have antennas located only on the top fuselage.", "false" ] } ] }, { "ch": "What data bus system connects the Cabin Services System (CSS) with the Inflight Entertainment (IFE)?", "ansGr": [ { "ans": [ "ARINC 628", "true" ] }, { "ans": [ "ARINC 429", "false" ] }, { "ans": [ "ARINC 629", "false" ] } ] }, { "ch": "What is a unique feature of the Iridium satellite system compared to Inmarsat for inflight communication?", "ansGr": [ { "ans": [ "It provides worldwide coverage, including polar regions.", "true" ] }, { "ans": [ "It operates at higher bandwidth speeds.", "false" ] }, { "ans": [ "It limits connection to short distances only.", "false" ] } ] }, { "ch": "What is the main difference in coverage between ground-based networks and satellite networks for inflight communication?", "ansGr": [ { "ans": [ "Ground-based networks have a limited geographical range, while satellites cover larger areas.", "true" ] }, { "ans": [ "Satellite networks provide faster speeds than ground-based networks.", "false" ] }, { "ans": [ "Both types offer the same coverage area.", "false" ] } ] }, { "ch": "How does the cabin mass memory system support cabin configuration?", "ansGr": [ { "ans": [ "It stores data about seat layout and zones for different configurations.", "true" ] }, { "ans": [ "It controls the power to passenger seats.", "false" ] }, { "ans": [ "It monitors passenger seatbelt signals.", "false" ] } ] }, { "ch": "How does the cabin monitoring system contribute to passenger safety?", "ansGr": [ { "ans": [ "By tracking essential cabin conditions like temperature and smoke detection.", "true" ] }, { "ans": [ "By directly controlling emergency exits.", "false" ] }, { "ans": [ "By monitoring the entertainment systems.", "false" ] } ] }, { "ch": "Why is it essential for certain cabin systems to undergo regular upgrades?", "ansGr": [ { "ans": [ "To remain competitive in the airline industry by offering modern amenities.", "true" ] }, { "ans": [ "To comply with government regulations.", "false" ] }, { "ans": [ "To reduce maintenance costs on older aircraft.", "false" ] } ] }, { "ch": "What does the Cabin Network Service provide?", "ansGr": [ { "ans": [ "Access to email, internet, and some databases.", "true" ] }, { "ans": [ "Control of the cabin lighting and temperature.", "false" ] }, { "ans": [ "Access to the aircraft’s navigation system.", "false" ] } ] }, { "ch": "What feature is restricted during certain phases of flight, like takeoff and landing?", "ansGr": [ { "ans": [ "Wireless connections within the cabin", "true" ] }, { "ans": [ "Cabin lighting systems", "false" ] }, { "ans": [ "The public address system", "false" ] } ] }, { "ch": "How does the cabin network service manage data for both IFE and passenger internet access?", "ansGr": [ { "ans": [ "By integrating IFE into the LAN and allowing shared network access.", "true" ] }, { "ans": [ "By restricting IFE and internet to separate networks.", "false" ] }, { "ans": [ "By providing a single wireless network for all connections.", "false" ] } ] }, { "part": "M11.21 ATA 46", "ch": "What is the primary function of aircraft information systems?", "ansGr": [ { "ans": [ "To store and efficiently access large quantities of information.", "true" ] }, { "ans": [ "To provide in-flight entertainment.", "false" ] }, { "ans": [ "To control cabin pressure.", "false" ] } ] }, { "ch": "What was the initial storage medium used for aircraft information?", "ansGr": [ { "ans": [ "Paper manuals.", "true" ] }, { "ans": [ "Digital computers.", "false" ] }, { "ans": [ "Microfilm.", "false" ] } ] }, { "ch": "What is a disadvantage of using microfilm and microfiche?", "ansGr": [ { "ans": [ "Special equipment is needed to view the images.", "true" ] }, { "ans": [ "They are lightweight.", "false" ] }, { "ans": [ "They are self-contained.", "false" ] } ] }, { "ch": "What does EFB stand for in the context of aircraft information systems?", "ansGr": [ { "ans": [ "Electronic Flight Bag.", "true" ] }, { "ans": [ "Electronic Flight Board.", "false" ] }, { "ans": [ "Emergency Flight Bag.", "false" ] } ] }, { "ch": "What is one of the advantages of using electronic formats for maintenance information?", "ansGr": [ { "ans": [ "Quick access to desired information.", "true" ] }, { "ans": [ "Increased paper weight.", "false" ] }, { "ans": [ "More manual labor required.", "false" ] } ] }, { "ch": "What device can flight attendants use instead of a paper manual?", "ansGr": [ { "ans": [ "A tablet.", "true" ] }, { "ans": [ "A laptop.", "false" ] }, { "ans": [ "A smartphone.", "false" ] } ] }, { "ch": "What kind of updates are possible with digital information systems?", "ansGr": [ { "ans": [ "Information can be electronically erased and rewritten.", "true" ] }, { "ans": [ "Only new printed pages can be added.", "false" ] }, { "ans": [ "Updates can only be made through paper revisions.", "false" ] } ] }, { "ch": "What types of databases does the EFB system provide access to?", "ansGr": [ { "ans": [ "Aeronautical charts and maintenance manuals.", "true" ] }, { "ans": [ "In-flight entertainment options.", "false" ] }, { "ans": [ "Cabin temperature control data.", "false" ] } ] }, { "ch": "How do digital computers compare to printed books in terms of storage?", "ansGr": [ { "ans": [ "They are compact and lightweight", "true" ] }, { "ans": [ "They require more physical space", "false" ] }, { "ans": [ "They are more difficult to access", "false" ] } ] }, { "ch": "What allows the EFB to pinpoint the aircraft's position on an airport map?", "ansGr": [ { "ans": [ "Data from multi-mode receivers (MMRs).", "true" ] }, { "ans": [ "Pilot input.", "false" ] }, { "ans": [ "Ground-based radar only.", "false" ] } ] }, { "ch": "How does the 777 EFB receive wireless updates?", "ansGr": [ { "ans": [ "Through a Terminal Wireless LAN Unit (TWLU).", "true" ] }, { "ans": [ "By using satellite connections.", "false" ] }, { "ans": [ "By manual downloads only.", "false" ] } ] }, { "ch": "How do aircraft information systems improve the efficiency of accessing information?", "ansGr": [ { "ans": [ "By allowing quick navigation using hyperlinks.", "true" ] }, { "ans": [ "By providing only printed materials.", "false" ] }, { "ans": [ "By requiring manual searching through documents.", "false" ] } ] }, { "ch": "What type of information do Maintenance Information Systems typically store?", "ansGr": [ { "ans": [ "Maintenance manuals and technical data.", "true" ] }, { "ans": [ "Passenger flight itineraries.", "false" ] }, { "ans": [ "In-flight entertainment options.", "false" ] } ] }, { "ch": "How is the information in Maintenance Information Systems typically organized?", "ansGr": [ { "ans": [ "By hyperlinks to the ATA 100 chapters.", "true" ] }, { "ans": [ "Randomly with no organization.", "false" ] }, { "ans": [ "Only by printed page numbers.", "false" ] } ] }, { "ch": "What is one benefit of using laptops for maintenance information retrieval?", "ansGr": [ { "ans": [ "They can be easily carried throughout the aircraft.", "true" ] }, { "ans": [ "They require a large physical footprint.", "false" ] }, { "ans": [ "They can only be used in the maintenance hangar.", "false" ] } ] }, { "ch": "Why is it important for maintenance personnel to access different types of information?", "ansGr": [ { "ans": [ "To effectively perform maintenance tasks.", "true" ] }, { "ans": [ "To entertain passengers.", "false" ] }, { "ans": [ "To monitor flight crew performance.", "false" ] } ] }, { "ch": "How does the use of electronic formats in Maintenance Information Systems enhance the workflow for maintenance crews compared to traditional methods?", "ansGr": [ { "ans": [ "Technicians can quickly access information with a few clicks instead of searching through paper manuals", "true" ] }, { "ans": [ "Electronic formats are less efficient and require more time", "false" ] }, { "ans": [ "Technicians rely on paper manuals for most of their tasks", "false" ] } ] }, { "ch": "What kind of information do passenger cabin information systems provide?", "ansGr": [ { "ans": [ "Safety procedures and checklists for cabin crew.", "true" ] }, { "ans": [ "Technical maintenance data.", "false" ] }, { "ans": [ "Engine performance metrics.", "false" ] } ] }, { "ch": "Which of the following is NOT a type of publication accessed by Maintenance Information Systems?", "ansGr": [ { "ans": [ "Illustrated parts catalogs", "true" ] }, { "ans": [ "Flight operation charts", "false" ] }, { "ans": [ "Wiring diagram manuals", "false" ] } ] }, { "ch": "What is one feature common to all information systems in aviation?", "ansGr": [ { "ans": [ "They must have a means of displaying and updating information.", "true" ] }, { "ans": [ "They can only store information in printed form.", "false" ] }, { "ans": [ "They do not need user controls for navigation.", "false" ] } ] }, { "ch": "What is a key advantage of electronic information systems compared to older systems?", "ansGr": [ { "ans": [ "Reduced weight and bulk.", "true" ] }, { "ans": [ "Increased dependence on paper.", "false" ] }, { "ans": [ "Higher maintenance costs.", "false" ] } ] }, { "ch": "How do modern computers improve upon traditional paper storage methods?", "ansGr": [ { "ans": [ "They can store and process large amounts of information compactly", "true" ] }, { "ans": [ "They require more physical space to store information", "false" ] }, { "ans": [ "They only store information in printed form", "false" ] } ] }, { "ch": "In what way do Electronic Flight Bags (EFB) benefit flight crews?", "ansGr": [ { "ans": [ "They allow access to various publications digitally.", "true" ] }, { "ans": [ "They are heavier than traditional manuals.", "false" ] }, { "ans": [ "They replace all physical equipment in the cockpit.", "false" ] } ] }, { "ch": "How can updates to information stored in digital memory be made more efficiently than in traditional paper systems?", "ansGr": [ { "ans": [ "Digital memory can be electronically erased and rewritten", "true" ] }, { "ans": [ "New pages must be printed and distributed", "false" ] }, { "ans": [ "The old information must be physically removed and discarded", "false" ] } ] } ]