Stepper Motors & Rotor Control Quiz

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  • 1/302 Questions

    What system on the nose landing gear (NLG) provides the means to raise the nose of the nose of the aircraft during ground maintenance and towing of the aircraft?

    • Hike
    • Chamber
    • Elevation
    • Extension
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About This Quiz

This quiz on Stepper Motors & Rotor Control assesses knowledge of rotor control mechanisms in aircraft, focusing on transitions, load limits, emergency egress, seat adjustments, and aircraft configurations. It is crucial for understanding operational and safety protocols in aviation technology.

Stepper Motors & Rotor Control Quiz - Quiz

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  • 2. 

    What are the two modes of operation for the rescue hoist system?

    • BACKUP and NORMAL

    • OVERRIDE and BACKUP

    • BACKUP and EMERGENCY

    • NORMAL and EMERGENCY

    Correct Answer
    A. NORMAL and EMERGENCY
    Explanation
    The two modes of operation for the rescue hoist system are NORMAL and EMERGENCY. In NORMAL mode, the hoist operates under standard conditions and follows regular procedures. In EMERGENCY mode, the hoist is used in urgent situations where there is an immediate need for rescue or evacuation. This mode may involve bypassing certain safety protocols or using alternative procedures to expedite the rescue process.

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  • 3. 

    What component is designed to reduce rotor-induced vibrations and provide anti-ice protection for the proprotor blade assemblies?

    • Grip assemblies

    • Proprotor gearboxes

    • Pendulum damper assemblies

    • Tip weight support assemblies

    Correct Answer
    A. Pendulum damper assemblies
    Explanation
    Pendulum damper assemblies are designed to reduce rotor-induced vibrations and provide anti-ice protection for the proprotor blade assemblies. These assemblies use pendulum weights to counteract the vibrations caused by the rotating rotor, reducing the overall vibrations and increasing the stability of the proprotor system. Additionally, they can also incorporate anti-ice protection features to prevent ice buildup on the blades, ensuring safe and efficient operation in icy conditions.

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  • 4. 

    What is the most likely cause of a birdcaged rescue hoist cable on an H60?

    • Hook bearing not rotating freely

    • Cable getting caught in the cable guide

    • Lifting more weight than the cable is rated for

    • Cable rubbing against the other cable or other structural members

    Correct Answer
    A. Hook bearing not rotating freely
    Explanation
    The most likely cause of a birdcaged rescue hoist cable on an H60 is the hook bearing not rotating freely. When the hook bearing is unable to rotate freely, it can cause the cable to become twisted and tangled, resulting in a birdcaged condition. This can happen due to lack of lubrication, damage to the bearing, or other mechanical issues that prevent smooth rotation of the hook bearing.

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  • 5. 

    Which inspection method requires the aircraft to be sent to a fixed station for inspection and maintenance?

    • Line

    • Dock

    • Ramp

    • In-Place

    Correct Answer
    A. Dock
    Explanation
    The correct answer is "Dock". The dock inspection method requires the aircraft to be sent to a fixed station for inspection and maintenance. This method involves bringing the aircraft to a specific location, usually a hangar or maintenance facility, where it can be thoroughly inspected and serviced. This allows for a more comprehensive examination of the aircraft's systems and components, ensuring that any necessary repairs or maintenance tasks can be carried out effectively.

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  • 6. 

    Which inspection consolidates the Pre-flight and Basic Post-flight inspections into a single inspection?

    • Combined Pre-flight and Post-flight

    • Home Station Checks

    • In-Depth Post-Flight

    • Walk-around

    Correct Answer
    A. Combined Pre-flight and Post-flight
    Explanation
    The correct answer is Combined Pre-flight and Post-flight. This inspection combines both the pre-flight and post-flight inspections into a single inspection. This means that all the necessary checks and inspections before and after a flight are done at once, saving time and ensuring that all aspects of the aircraft are thoroughly inspected. This consolidated inspection helps streamline the process and ensure the aircraft's safety and readiness for flight.

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  • 7. 

    What type of inspection must be performed after a hard landing?

    • Phase inspection

    • Special inspection

    • Acceptance inspection

    • Basic post-flight inspection

    Correct Answer
    A. Special inspection
    Explanation
    After a hard landing, a special inspection must be performed. This type of inspection is necessary to thoroughly examine the aircraft for any potential damage or stress that may have occurred during the landing. It involves a detailed inspection of critical components such as the landing gear, fuselage, wings, and control surfaces to ensure their structural integrity and functionality. The special inspection is crucial to identify any issues that may have arisen from the hard landing and to determine if any repairs or maintenance actions are required before the aircraft can safely fly again.

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  • 8. 

    The proper way to store a torque wrench is with the

    • Handle at the lowest setting

    • Handle at the highest setting

    • Locking mechanism in the ON position

    • Locking mechanism in the OFF position

    Correct Answer
    A. Handle at the lowest setting
    Explanation
    Storing a torque wrench with the handle at the lowest setting is the proper way to ensure its longevity and accuracy. This position helps to relieve any tension or stress on the internal components of the wrench, preventing them from becoming damaged or worn over time. Additionally, keeping the handle at the lowest setting ensures that the wrench is ready for use at the minimum torque setting, allowing for easy adjustment and calibration when needed.

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  • 9. 

    What happens when the battery voltage on the digital protractor drops below 7 volts?

    • Nothing

    • The liquid crystal display (LCD) blinks

    • The LCD displays LOW BAT

    • The protractor automatically shuts down

    Correct Answer
    A. The LCD displays LOW BAT
    Explanation
    When the battery voltage on the digital protractor drops below 7 volts, the LCD displays "LOW BAT". This indicates that the battery level is low and needs to be replaced or recharged.

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  • 10. 

    Prior to lowering jacks and aircraft, you must

    • Clear the area beneath the aircraft of all obstructions

    • Check electrical power switches

    • Check fluid level in jacks

    • Call for wind velocity

    Correct Answer
    A. Clear the area beneath the aircraft of all obstructions
    Explanation
    Before lowering jacks and aircraft, it is necessary to clear the area beneath the aircraft of all obstructions. This is important to ensure the safety of both the aircraft and the personnel working on it. Any obstructions in the area can pose a risk of damage to the aircraft or injury to the personnel. Therefore, it is crucial to remove any objects or obstacles that may interfere with the lowering process.

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  • 11. 

    What independent hydraulic system(s) provide hydro power to the Osprey?

    • Auxiliary hydraulic power system

    • Hydraulic system 1 and 2 only

    • Main hydraulic power system

    • Hydraulic system 1, 2, and 3

    Correct Answer
    A. Hydraulic system 1, 2, and 3
    Explanation
    The Osprey is provided with hydro power by hydraulic systems 1, 2, and 3. This means that all three hydraulic systems are independent and capable of generating hydraulic power for the Osprey. The auxiliary hydraulic power system is not mentioned as one of the independent systems providing hydro power.

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  • 12. 

    What component provides low oil indications for the left and right tilt axis gearboxes, left and right proprotor gearboxes, and left nacelle variable frequency generator?

    • Ground refuel/defuel panel (GRDP)

    • Multi-function display

    • Cockpit interface unit

    • Cockpit display unit

    Correct Answer
    A. Ground refuel/defuel panel (GRDP)
    Explanation
    The ground refuel/defuel panel (GRDP) is the component that provides low oil indications for the left and right tilt axis gearboxes, left and right proprotor gearboxes, and left nacelle variable frequency generator. This panel is responsible for monitoring the oil levels in these various components and alerting the pilot if the oil levels are low. It is an important part of the aircraft's systems and helps ensure the safe operation of the tilt axis gearboxes, proprotor gearboxes, and variable frequency generator.

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  • 13. 

    The proprotor fairings and other components are made of a composite material containing a copper mesh used for?

    • Reinforcement

    • Corrosion resistance

    • Aircraft ergonomic stability

    • Distribution and dissipation of electrical charges

    Correct Answer
    A. Distribution and dissipation of electrical charges
    Explanation
    The composite material containing a copper mesh is used for the distribution and dissipation of electrical charges. This means that it helps to evenly spread and release any electrical charges that may build up in the proprotor fairings and other components. This is important for the safety and proper functioning of the aircraft, as it helps to prevent any potential electrical hazards or damage that could occur due to static electricity or other electrical charges.

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  • 14. 

    The pylon driveshaft assembly transfers power from the prgb to the?

    • Left engine

    • Right engine

    • Tilt axis gearbox

    • Midwing gearbox

    Correct Answer
    A. Tilt axis gearbox
    Explanation
    The pylon driveshaft assembly is responsible for transferring power from the prgb (power reduction and gearbox) to the tilt axis gearbox. This means that it connects the power source (prgb) to the component (tilt axis gearbox) that controls the tilt movement of the aircraft's engine. It does not transfer power to the left engine, right engine, or midwing gearbox.

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  • 15. 

    What mwgb oil component vents the gearbox to the atmosphere to equalize internal and external case pressure?

    • Breather

    • Manifold

    • Filler cap

    • Cooler/blower assembly

    Correct Answer
    A. Breather
    Explanation
    The breather component in the gearbox vents the gearbox to the atmosphere in order to equalize the internal and external case pressure. This helps prevent pressure build-up inside the gearbox, which can lead to leaks or other issues.

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  • 16. 

    Although you must perform certain checks anytime you replace hydro components on the H60, what are you not always required to do?

    • Ensure there are no leaks

    • Bleed the affected system

    • Perform an operational check

    • Perform a functional check flight (FCF)

    Correct Answer
    A. Perform a functional check flight (FCF)
    Explanation
    When replacing hydro components on the H60, it is not always required to perform a functional check flight (FCF). The other checks mentioned, such as ensuring there are no leaks, bleeding the affected system, and performing an operational check, are necessary to ensure the proper functioning and safety of the aircraft after the replacement. However, a functional check flight may not be necessary in all cases, depending on the specific circumstances and the nature of the component being replaced.

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  • 17. 

    What type of H60 hydro leak check observation would you use if the location of a component does not permit you to directly observe the leak?

    • Direct

    • Indirect

    • Extended

    • Expanded

    Correct Answer
    A. Indirect
    Explanation
    If the location of a component does not allow for direct observation of a hydro leak, an indirect observation would be used. This means that the leak would be inferred or deduced based on other evidence or indicators, rather than being directly observed.

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  • 18. 

    When the explosive squib is fired, the H60 CARGO HOOK OPEN light will extinguish when?

    • The hook opens

    • The hook closes

    • A new squib is installed

    • The hook open lever is reset

    Correct Answer
    A. A new squib is installed
    Explanation
    When a new squib is installed, the explosive squib is replaced with a new one. The H60 CARGO HOOK OPEN light is connected to the squib and is designed to indicate the status of the hook. Therefore, when a new squib is installed, it is expected that the H60 CARGO HOOK OPEN light will extinguish, indicating that the hook is now closed.

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  • 19. 

    Which limit switch on the H60 Lucas Western rescue hoist will actuate to stop the hoist cable when there is 3 1/2 to 4 1/2 wraps of cable remaining on the drum?

    • Up limit

    • Full out limit

    • Deceleration up limit

    • Deceleration down limit

    Correct Answer
    A. Full out limit
    Explanation
    The full out limit switch on the H60 Lucas Western rescue hoist will actuate to stop the hoist cable when there is 3 1/2 to 4 1/2 wraps of cable remaining on the drum.

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  • 20. 

    How many broken wires are allowed to remain in a critical fatigue area of an H60 tail rotor cable?

    • None

    • One

    • Two

    • Three

    Correct Answer
    A. None
    Explanation
    In a critical fatigue area of an H60 tail rotor cable, no broken wires are allowed to remain. This means that any broken wire in this area must be replaced or repaired in order to maintain the safety and integrity of the cable.

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  • 21. 

    What is the purpose of the air transport kits (ATK)?

    • Facilitate quick teardown and buildup of your helicopter

    • Secure the helicopter to the floor of the transport aircraft

    • Facilitate the folding of the main rotor blades

    • Pull the helicopter into the transport aircraft

    Correct Answer
    A. Facilitate quick teardown and buildup of your helicopter
    Explanation
    The purpose of the air transport kits (ATK) is to facilitate the quick teardown and buildup of your helicopter. This means that the ATKs are designed to make it easier and more efficient to disassemble and reassemble the helicopter for transportation purposes. This can be especially useful in situations where the helicopter needs to be transported by air and needs to be quickly prepared for flight or disassembled for storage or maintenance.

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  • 22. 

    Which type of containers must be used for the combustable wastes, rags, and other flammable materials?

    • Plastics containers

    • Metal mesh containers

    • Metal containers with self closing lids

    • Plastics containers with self closing lids

    Correct Answer
    A. Metal containers with self closing lids
    Explanation
    Metal containers with self closing lids must be used for combustible wastes, rags, and other flammable materials because they provide a secure and fire-resistant storage option. The metal material helps to prevent the spread of fire and contains any potential sparks or embers. The self closing lids further enhance safety by automatically closing and sealing the container, reducing the risk of accidental ignition or exposure to oxygen.

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  • 23. 

    What is the mandated automated training tool for maintaining on-the-job (OJT) records?

    • Core Automated Maintenance System (CAMS)

    • Advanced Distance Learning System (ADLS)

    • Integrated Maintenance Data System (IMDS)

    • Training Business Area (TBA)

    Correct Answer
    A. Training Business Area (TBA)
    Explanation
    The Training Business Area (TBA) is the mandated automated training tool for maintaining on-the-job (OJT) records. This system is specifically designed to track and manage training activities and records, making it the ideal choice for maintaining OJT records. The other options, such as Core Automated Maintenance System (CAMS), Advanced Distance Learning System (ADLS), and Integrated Maintenance Data System (IMDS), are not specifically designed for maintaining OJT records and may not have the necessary features and functionalities required for this purpose.

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  • 24. 

    The part of a cannon plug that completes the electrical circuit is

    • Metal shells

    • Connector halves

    • Dielectric contacts

    • Pin-and-socket contacts

    Correct Answer
    A. Pin-and-socket contacts
    Explanation
    Pin-and-socket contacts are the part of a cannon plug that completes the electrical circuit. These contacts consist of pins and sockets that fit together to establish a secure and reliable electrical connection. When the cannon plug is inserted, the pins and sockets make contact with each other, allowing the flow of electrical current between the two connected devices. This ensures that the electrical circuit is completed and allows for the transmission of signals or power. The metal shells, connector halves, and dielectric contacts may play other roles in the cannon plug, but they do not directly complete the electrical circuit.

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  • 25. 

    What is the purpose of Air Force Technical Order (AFTO) FOrm 245, Industrial Support Equipment Record (Continuation)?

    • Documents off-equipment maintenance

    • A continuance sheet for AFTO form 244, industrial/support equipment record

    • The inspection checklist for support equipment

    • The support equipment training document

    Correct Answer
    A. A continuance sheet for AFTO form 244, industrial/support equipment record
    Explanation
    The purpose of Air Force Technical Order (AFTO) Form 245, Industrial Support Equipment Record (Continuation), is to serve as a continuance sheet for AFTO Form 244, which is the industrial/support equipment record. AFTO Form 245 allows for additional information and updates to be recorded on the equipment record, ensuring that all maintenance and inspection details are properly documented. This helps to maintain accurate and up-to-date records for the support equipment.

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  • 26. 

    What aerodynamic force acts in the opposite direction of drag?

    • Lift

    • Speed

    • Thrust

    • Gravity

    Correct Answer
    A. Thrust
    Explanation
    Thrust is the correct answer because it is the aerodynamic force that acts in the opposite direction of drag. While drag acts to slow down an object moving through a fluid, thrust acts to propel the object forward. In the context of aerodynamics, thrust is typically generated by engines or propulsion systems, such as jet engines or propellers, and it counteracts the resistance caused by drag.

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  • 27. 

    Which of these is not part of corrosion prevention?

    • Cleaning

    • Painting

    • Removing Rust

    • Inspecting and early detection

    Correct Answer
    A. Removing Rust
    Explanation
    Removing rust is not part of corrosion prevention because rust is a form of corrosion. Corrosion prevention involves taking measures to prevent the formation of rust and other forms of corrosion, such as applying protective coatings like paint, regular cleaning to remove contaminants that can accelerate corrosion, and inspecting for early detection of any signs of corrosion. However, removing existing rust is considered a form of corrosion repair rather than prevention.

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  • 28. 

    What hydrualic systems provide 5000 psi for blade fold/wing stow system indexing and stowing operations?

    • No 1 and 2

    • No 2 and 3

    • No 1

    • No 3

    Correct Answer
    A. No 3
  • 29. 

    What component engages and disengages the apu?

    • Integral overrunning clutch

    • Apu transmission adapter

    • Planetary assembly

    • Apu gearbox

    Correct Answer
    A. Integral overrunning clutch
    Explanation
    The integral overrunning clutch is the component that engages and disengages the APU (Auxiliary Power Unit). This clutch allows the APU to start and stop independently from the main engine. It prevents the APU from being driven by the main engine when it is not required, thus saving fuel and reducing wear on the APU components.

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  • 30. 

    What effect does the engines compressor rotor have on the velocity of the incoming airflow?

    • Eliminate

    • Decrease

    • Maintain

    • Increase

    Correct Answer
    A. Increase
    Explanation
    The engine's compressor rotor increases the velocity of the incoming airflow. As the air passes through the compressor rotor, it is compressed and forced into a smaller space, which results in an increase in pressure and velocity. This increased velocity is crucial for the efficient operation of the engine, as it helps to ensure proper combustion and power generation.

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  • 31. 

    To avoid placing undue stress on the brake assembly when servicing the upper stage of the shock strut, you need to?

    • Deflate the tire

    • Set the parking brake

    • Release the parking brake

    • Use a skid plate under the tire

    Correct Answer
    A. Release the parking brake
    Explanation
    Releasing the parking brake helps to avoid placing undue stress on the brake assembly when servicing the upper stage of the shock strut. By releasing the parking brake, the brake assembly is disengaged, allowing for easier and safer access to the shock strut. This prevents any potential damage or strain on the brake assembly during the servicing process.

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  • 32. 

    To avoid injury and prevent cable fouling when raising or lowering the rescue hoist cable on an H60, you should use?

    • Rubber gloves and maintain tension on the cable

    • Leather gloves and maintain tension on the cable

    • Rubber gloves and avoid having tension on the cable

    • Leather gloves and avoid having tension on the cable

    Correct Answer
    A. Leather gloves and maintain tension on the cable
    Explanation
    To avoid injury and prevent cable fouling when raising or lowering the rescue hoist cable on an H60, it is recommended to use leather gloves. Leather gloves provide better grip and protection compared to rubber gloves. Additionally, maintaining tension on the cable helps to prevent it from becoming tangled or entangled, reducing the risk of accidents or damage to the equipment.

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  • 33. 

    Both H60 engine fire extinguisher containers will automatically fire into both main engine compartments upon a ground impact of?

    • 1 G or more

    • 3 or more Gs

    • 7 or more Gs

    • 10 or more Gs

    Correct Answer
    A. 10 or more Gs
    Explanation
    The H60 engine fire extinguisher containers are designed to automatically release fire extinguishing agents into the main engine compartments upon a ground impact of 10 or more Gs. This means that if the aircraft experiences a severe impact with the ground, such as during a crash or hard landing, the containers will activate and release the fire extinguishing agents to suppress any potential fires in the engine compartments. The high G-force threshold ensures that the fire extinguishers are only activated in significant impact scenarios, rather than minor bumps or vibrations.

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  • 34. 

    If you find it difficult to pull the input module free from the main module when removing the input module from an H60 power train, what can you use to help break the input module loose?

    • Bolts

    • A screwdriver

    • A large wooden mallet

    • The hydraulic separator unit

    Correct Answer
    A. Bolts
    Explanation
    To pull the input module free from the main module when removing it from an H60 power train, using bolts can help break it loose. By loosening the bolts, it creates a separation between the input module and the main module, making it easier to remove. The bolts act as a lever, providing the necessary force to break any resistance and release the input module.

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  • 35. 

    What is the primary focus in the noncommissioned officer (NCO) tier?

    • Advancement

    • Up-grade training

    • Developing airmen

    • Mission accomplishment

    Correct Answer
    A. Mission accomplishment
    Explanation
    The primary focus in the noncommissioned officer (NCO) tier is mission accomplishment. NCOs play a crucial role in leading and guiding their subordinates to ensure that tasks and objectives are completed successfully. They are responsible for organizing and coordinating resources, providing direction and supervision, and ensuring that the mission is achieved efficiently and effectively. NCOs also serve as role models and mentors to their subordinates, helping them develop the skills and knowledge necessary to contribute to the overall mission success.

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  • 36. 

    Which object would cause an aircraft to be considered "explosives loaded"?

    • Flares

    • Survival kit

    • Pyrotechnics rescue kit

    • Fire extinguisher cartridges

    Correct Answer
    A. Flares
    Explanation
    Flares are considered "explosives loaded" because they contain pyrotechnic materials that can generate a bright light or a visible signal. These materials are highly flammable and can cause an explosion if mishandled or ignited. Therefore, the presence of flares on an aircraft would classify it as carrying explosives.

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  • 37. 

    What TO third part numbers identify TCTOs?

    • -1 through -50

    • -1 through -100

    • -101 through -500

    • -501 and higher

    Correct Answer
    A. -501 and higher
    Explanation
    TCTOs, or Time Compliance Technical Orders, are identified by TO third part numbers. The given correct answer states that TCTOs are identified by numbers starting from -501 and higher. This implies that TCTOs are assigned numbers in a sequential manner, with -501 being the starting point for the identification of TCTOs. The answer suggests that TCTOs with numbers higher than -501 are used to identify these technical orders.

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  • 38. 

    A commander assures that property is receiving proper care and is being properly safeguarded by

    • Inspecting the property on issue

    • Inspecting the property on turn-in

    • Making frequent visits to base activities

    • Obtaining written reports from supervisors

    Correct Answer
    A. Making frequent visits to base activities
    Explanation
    Making frequent visits to base activities allows the commander to personally observe the condition and care of the property. By being present at the base activities, the commander can ensure that the property is being properly safeguarded and receiving the necessary care. This method also allows for direct interaction with personnel responsible for the property, providing an opportunity to address any concerns or issues immediately. Inspecting the property on issue and turn-in, as well as obtaining written reports from supervisors, may provide some information, but they do not offer the same level of firsthand observation and oversight as making frequent visits to base activities.

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  • 39. 

    Left-hand threads on a turnbuckle can be identified by the

    • Knurl beside the fork

    • Groove by the cable eye

    • Knurl beside the pin eye

    • Groove or knurl on the end of the barrel

    Correct Answer
    A. Groove or knurl on the end of the barrel
    Explanation
    Left-hand threads on a turnbuckle can be identified by the groove or knurl on the end of the barrel. This groove or knurl is a distinguishing feature that indicates the presence of left-hand threads. By visually inspecting the end of the barrel, one can easily identify whether the turnbuckle has left-hand threads or not. The presence of a groove or knurl on the end of the barrel is a clear indication of left-hand threading.

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  • 40. 

    What regulated alternating current (AC) voltages can the -86 Hobart generator set deliver to the aircraft?

    • 28.5

    • 110/210

    • 115/200 or 230/400

    • 100/210 or 215/315

    Correct Answer
    A. 115/200 or 230/400
    Explanation
    The -86 Hobart generator set can deliver regulated alternating current (AC) voltages of either 115/200 or 230/400 to the aircraft.

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  • 41. 

    On the generator control panel of the -86 Hobart generator set, the indication of a clogged air filter is a

    • Red air service indicator flag

    • Red air service indicator light

    • Yellow air service indicator flag

    • Yellow air service indicator light

    Correct Answer
    A. Yellow air service indicator flag
    Explanation
    The correct answer is the yellow air service indicator flag. This flag is used to indicate a clogged air filter on the generator control panel of the -86 Hobart generator set. When the air filter becomes clogged, it restricts the airflow and can cause issues with the generator's performance. The yellow flag serves as a warning sign for the operator to take action and clean or replace the air filter to ensure proper functioning of the generator.

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  • 42. 

    The AF/M32R-3 oxygen servicing trailer is designed to transport a maximum of how many oxygen cyliners?

    • 3

    • 6

    • 8

    • 10

    Correct Answer
    A. 8
    Explanation
    The AF/M32R-3 oxygen servicing trailer is designed to transport a maximum of 8 oxygen cylinders.

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  • 43. 

    On navy ships, what is stamped onto the compartment bulkhead and gives information on where you are and the compartment's fuction

    • Bull's Eye

    • Color Code

    • Locator Map

    • Numeric Code

    Correct Answer
    A. Bull's Eye
    Explanation
    On navy ships, a Bull's Eye is stamped onto the compartment bulkhead to provide information on where you are and the compartment's function. The Bull's Eye is a circular marking that typically includes a number or letter to indicate the specific compartment, allowing sailors to easily identify their location within the ship. This helps with navigation and communication, ensuring that everyone on board can quickly and accurately locate different areas of the ship when needed.

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  • 44. 

    Lubrications that are procured in containers larger than the 1-quart size must be 

    • Shelf inspected before use

    • Properly sealed after use

    • Discarded after use

    • Filtered before use

    Correct Answer
    A. Filtered before use
    Explanation
    Lubrications that are procured in containers larger than the 1-quart size must be filtered before use. This is because larger containers are more prone to contamination and impurities may have entered the lubricant during storage or transport. Filtering the lubricant helps to remove any particles or debris that could potentially damage the machinery or affect its performance. By filtering the lubricant before use, it ensures that only clean and pure lubricant is applied, prolonging the lifespan of the equipment and preventing any potential issues.

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  • 45. 

    What components are the main entry points for fuel into the left and right forward sponson cells?

    • Ground pressure refuel adapters

    • Cap and adapter assemblies

    • Fuel level control valves

    • Refuel/defuel valves

    Correct Answer
    A. Refuel/defuel valves
    Explanation
    The refuel/defuel valves are the main entry points for fuel into the left and right forward sponson cells. These valves allow for the refueling and defueling of the cells, controlling the flow of fuel into and out of the cells. They are essential components for managing the fuel levels in the sponson cells and ensuring a proper fuel supply to the aircraft.

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  • 46. 

    What component provides control and monitoring of fuel center of gravity (CG) management system operation for the left side of the aircraft, and monitoring of the low level sensor in the left feed tank?

    • Fuel management unit (FMU) 1 (left FMU)

    • Central processing unit (CPU)

    • FMU 2 (right FMU)

    • FMU 3

    Correct Answer
    A. Fuel management unit (FMU) 1 (left FMU)
    Explanation
    The fuel management unit (FMU) 1, also known as the left FMU, is responsible for controlling and monitoring the fuel center of gravity (CG) management system operation on the left side of the aircraft. It also monitors the low level sensor in the left feed tank. This indicates that FMU 1 is specifically designed to handle the fuel management and monitoring tasks for the left side of the aircraft, making it the correct answer.

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  • 47. 

    What additional component in the left proprotor gearbox provides for the counter-rotation of the proprotors?

    • Curvic coupling

    • Spindle adapter

    • Flex coupling

    • Idler gear

    Correct Answer
    A. Idler gear
    Explanation
    The additional component in the left proprotor gearbox that provides for the counter-rotation of the proprotors is the idler gear. The idler gear is responsible for transmitting power from the engine to the proprotors in a way that allows them to rotate in opposite directions. It acts as an intermediary between the engine and the proprotors, allowing for the necessary counter-rotation.

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  • 48. 

    What does the engine anti-icing air system provide in order to prevent the formation of ice?

    • De-icing fluid

    • Continuous heating

    • On demand heating

    • Aircrew controlled heating

    Correct Answer
    A. Continuous heating
    Explanation
    The engine anti-icing air system provides continuous heating in order to prevent the formation of ice. This means that the system constantly supplies heat to the engine to keep it warm and prevent ice from forming on its surfaces. Continuous heating is necessary because ice formation can be a serious hazard to the engine's performance and can lead to engine failure. By providing continuous heating, the system ensures that the engine remains ice-free and can operate safely and efficiently.

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  • 49. 

    What component receives oil at a flow rate of 5.5 gpm from the engine oil tank assembly, in order to lubricate the engine accessory gearbox?

    • Oil pump

    • Fuel pump

    • Air oil seperator

    • Oil temperature sensor

    Correct Answer
    A. Oil pump
    Explanation
    The oil pump is the component that receives oil at a flow rate of 5.5 gpm from the engine oil tank assembly in order to lubricate the engine accessory gearbox. The oil pump is responsible for circulating the oil throughout the engine, ensuring that all the necessary components are properly lubricated to prevent friction and damage.

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Quiz Review Timeline (Updated): May 1, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • May 01, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 28, 2014
    Quiz Created by
    Hubbardca
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