Fighter Aircraft Maintenance Volume 4. A-10/U-2/Uav (Rq-1)

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  • 1/100 Questions

    The A-10's integrated drive generator oil supply circuit component that attracts ferrous metals particles is the 

    • Filter
    • Air oil cooler
    • Pressure fill port
    • Magnetic chip detector
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About This Quiz

This quiz focuses on the maintenance of fighter aircraft such as the A-10, U-2, and UAV (RQ-1). It assesses knowledge on fuselage components, fuel tank safety, hazard awareness, and landing gear mechanics, crucial for maintaining operational integrity in combat scenarios.

Military Aircraft Quizzes & Trivia

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  • 2. 

    The hydraulic tubing for the U-2 horizontal stabilizer trim is color-coded to 

    • Show it is a flight control line

    • Identify the type of tubing used

    • Show the tubing is not twisted or spliced

    • Prevent cross-connection of lines during maintenance

    Correct Answer
    A. Prevent cross-connection of lines during maintenance
    Explanation
    The hydraulic tubing for the U-2 horizontal stabilizer trim is color-coded to prevent cross-connection of lines during maintenance. This means that the different colors on the tubing help to ensure that the correct lines are connected to each other during maintenance procedures, reducing the risk of cross-connection and potential malfunctions. By using color-coding, maintenance personnel can easily identify which lines should be connected together, improving safety and efficiency during maintenance operations.

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  • 3. 

    The light that illuminates on the U-2 aircraft when the fuel sump reads 38 (±3) gallons remaining is the 

    • FUEL TRANSFER

    • FUEL UNEQUAL

    • FUEL LEVEL LOW

    • FUEL IMBALANCE

    Correct Answer
    A. FUEL LEVEL LOW
    Explanation
    When the fuel sump reads 38 (±3) gallons remaining, it indicates that the fuel level is low. This means that there is not much fuel left in the aircraft's tanks, and it is approaching a critical level. The light that illuminates in this situation serves as a warning to the pilot that they should consider refueling soon to avoid running out of fuel during the flight.

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  • 4. 

    The U-2 technical manual section that provides you with a description of the aircraft, aircraft stations, access provisions, and drain and vent points is

    • System

    • General information

    • Master drawing index

    • Explanation of contents

    Correct Answer
    A. General information
    Explanation
    The correct answer is "general information." In the U-2 technical manual, the section on general information provides a comprehensive description of the aircraft, including its various stations, access provisions, and drain and vent points. This section serves as a useful reference for understanding the overall structure and features of the aircraft. It helps technicians and operators familiarize themselves with the basic details of the U-2, enabling them to effectively maintain and operate the aircraft. The general information section is an essential part of the technical manual, providing crucial information for anyone working with the U-2 aircraft.

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  • 5. 

    The aft portion of the U-2 canopy is coated with four coats of paint to 

    • Provide shade and prevent night blindness

    • Provide insulation from low temperatures

    • Combat solar radiation and glare

    • Reduce solar heat signature

    Correct Answer
    A. Combat solar radiation and glare
    Explanation
    The aft portion of the U-2 canopy is coated with four coats of paint to combat solar radiation and glare. This coating helps to protect the pilot's eyes from the intense sunlight and glare that can occur at high altitudes. It also helps to reduce the amount of solar radiation that enters the cockpit, which can help to keep the interior of the aircraft cooler. This is important because excessive solar heat can affect the performance and functionality of the aircraft's instruments and systems.

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  • 6. 

    A momentary hammering sound when the U-2 fuel transfer valves are actuated is caused by

    • A malfunctioning valve

    • High fuel pressure

    • Air in the system

    • Low fuel level

    Correct Answer
    A. Air in the system
    Explanation
    The momentary hammering sound when the U-2 fuel transfer valves are actuated is caused by air in the system. When the valves are actuated, air bubbles can get trapped in the fuel lines, causing the hammering sound. This is a common issue in fuel systems and can be resolved by bleeding the air out of the system.

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  • 7. 

    The oxygen regulator supply lever on the A-10 is

    • Red

    • Blue

    • Green

    • White

    Correct Answer
    A. Green
    Explanation
    The oxygen regulator supply lever on the A-10 is green. This color is likely chosen to indicate that it is the correct lever to use for supplying oxygen. Green is often associated with safety and is commonly used to indicate "go" or "safe" in various contexts. In this case, the green lever would be easily identifiable and distinguishable from other levers, helping to prevent any confusion or mistakes when using the oxygen regulator.

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  • 8. 

    The position the A-10 feel and trim devices provide the stick to represent any trim set into the elevator actuator is 

    • Aft load

    • Lateral load

    • Positive load

    • Neutral (zero load)

    Correct Answer
    A. Neutral (zero load)
    Explanation
    The A-10 feel and trim devices provide the stick with a representation of the trim set into the elevator actuator. This means that the stick will not experience any load or force in any direction, indicating a neutral or zero load.

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  • 9. 

    The nose illumination lights on the A-10 are used for

    • In-flight refueling

    • Tower identification

    • In-flight visual checks

    • Crew chief identifcation

    Correct Answer
    A. In-flight refueling
    Explanation
    The nose illumination lights on the A-10 are used for in-flight refueling. These lights help the pilot and the tanker aircraft to visually align and connect the refueling boom with the A-10's receptacle. They provide a clear visual reference during the refueling process, ensuring safe and efficient fuel transfer while in flight.

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  • 10. 

    The U-2 aircraft's automated weight and balance programs daily data is gathered form the AFTO Form

    • 781A

    • 781C

    • 781H

    • 781J

    Correct Answer
    A. 781C
    Explanation
    The correct answer is 781C. The U-2 aircraft's automated weight and balance programs gather daily data from the AFTO Form 781C.

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  • 11. 

    The auxiliary landing gear on the U-2 are called

    • Wing skids

    • Outriggers

    • Pagos

    • Outboard gear

    Correct Answer
    A. Pagos
  • 12. 

    When refueling the U-2, the fuel tank filled first is the 

    • Left outboard wing

    • Left inboard wing

    • Fuselage sump

    • External

    Correct Answer
    A. Fuselage sump
    Explanation
    When refueling the U-2, the fuel tank filled first is the fuselage sump. The fuselage sump is located in the central part of the aircraft's body, and it serves as a storage tank for fuel. Filling this tank first ensures that the fuel is distributed evenly throughout the aircraft, providing balance and stability during flight.

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  • 13. 

    The number of liquid oxygen converters on the U-2 is

    • One

    • Two

    • Three

    • Four

    Correct Answer
    A. Two
    Explanation
    The correct answer is two because the question states that the number of liquid oxygen converters on the U-2 is being asked. Therefore, the answer is the option that states "two," indicating that there are two liquid oxygen converters on the U-2.

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  • 14. 

    The A-10's fuel system component that diffuses the fuel spray to reduce static buildup caused by the fuel pouring into the fuel tanks during refueling is the 

    • Pitot tube

    • Vent tube

    • Drain tube

    • Piccolo tube

    Correct Answer
    A. Piccolo tube
    Explanation
    The correct answer is the piccolo tube. The piccolo tube is a fuel system component in the A-10 aircraft that diffuses the fuel spray to reduce static buildup caused by the fuel pouring into the fuel tanks during refueling. It helps to prevent any potential ignition or static discharge hazards that could occur due to the fuel pouring into the tanks. The other options mentioned, such as the pitot tube, vent tube, and drain tube, are not specifically designed for this purpose.

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  • 15. 

    Except during system maintenance, the U-2 hydraulic reservoir should remain pressuirzed to

    • Ensure the system seals do not dry out between flights

    • Reduce the time required to prepared the aircraft for a mission

    • Reduce the wear on the pressurization system during engine start

    • Eliminate the possibility of air and contaminants entering the system

    Correct Answer
    A. Eliminate the possibility of air and contaminants entering the system
    Explanation
    Pressurizing the U-2 hydraulic reservoir helps eliminate the possibility of air and contaminants entering the system. This is important because air and contaminants can cause damage to the hydraulic system and compromise its functionality. By maintaining pressure in the reservoir, the system remains sealed, preventing any outside elements from entering and potentially causing problems.

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  • 16. 

    If the alternator on the RQ-1 fails, backup power is provided by

    • Two lead-acid batteries

    • Two dry-cell nickel-cadmium batteries

    • An air turbine generator powered by ram air

    • Two silver-zinc, rechargeable, alkaline-type batteries

    Correct Answer
    A. Two dry-cell nickel-cadmium batteries
    Explanation
    The backup power for the RQ-1 in case of alternator failure is provided by two dry-cell nickel-cadmium batteries. These batteries are commonly used for backup power in various applications due to their ability to provide a stable and reliable power source. They have a longer shelf life, can operate in extreme temperatures, and have a high energy density, making them suitable for backup power in critical situations.

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  • 17. 

    The A-10 Fuselage components the redistribute loads around cutouts and provide redundant load paths are

    • Stingers

    • Spars

    • Auxillary longerons

    • Ribs

    Correct Answer
    A. Auxillary longerons
    Explanation
    Auxiliary longerons are fuselage components that help redistribute loads around cutouts and provide redundant load paths. They are additional structural members that run parallel to the main longerons and provide extra support and strength to the fuselage structure. These longerons help to distribute the loads evenly and prevent stress concentrations around cutouts, ensuring the structural integrity of the A-10 fuselage.

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  • 18. 

    During inhalation,the A-10's oxygen regulator flow indicator should show

    • White

    • Black

    • Red

    • Green

    Correct Answer
    A. White
    Explanation
    During inhalation, the A-10's oxygen regulator flow indicator should show white. This is because white indicates that the oxygen flow is normal and there are no issues with the oxygen supply. The color coding system is used to ensure that the pilots can easily identify any abnormalities or malfunctions in the oxygen flow. White is the standard color for normal flow, while other colors like black, red, and green may indicate different levels of issues or warnings.

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  • 19. 

    To signal that the emergency start system has been activated in flight, the pilot of a U-2 

    • Turns on the anti-collision lights

    • Turns on the main landing gear lights

    • Leaves the speed brakes open

    • Shuts the aircraft down at the end of the runway

    Correct Answer
    A. Turns on the main landing gear lights
    Explanation
    When the emergency start system is activated in flight, the pilot of a U-2 turns on the main landing gear lights. This is because the main landing gear lights are a signal to other aircraft and ground personnel that there is an emergency situation. By turning on these lights, the pilot can alert others to the fact that they are experiencing an emergency and may require assistance or priority landing.

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  • 20. 

    On the U-2, the speed brakes are located on 

    • Each side of the aft fuselage

    • The bottom of each wing

    • Top of the center fuselage

    • Top of each wing

    Correct Answer
    A. Each side of the aft fuselage
    Explanation
    The correct answer is each side of the aft fuselage. The U-2 aircraft has speed brakes located on each side of the aft fuselage. Speed brakes are used to increase drag and reduce the speed of an aircraft. In the case of the U-2, the speed brakes are positioned on the sides of the rear part of the fuselage to help control the aircraft's speed and descent during landing or other maneuvers.

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  • 21. 

    The three operating modes of the U-2 aircraft mounted accessory drive are

    • Overdrive, straight drive, and subsystem checkout

    • Engine-starting, accessory drive, and subsystem checkout

    • Engine-starting, accessory drive, and underdrive

    • Overdrive, underdrive, and straight drive

    Correct Answer
    A. Engine-starting, accessory drive, and subsystem checkout
    Explanation
    The correct answer is engine-starting, accessory drive, and subsystem checkout. The U-2 aircraft mounted accessory drive has three operating modes: engine-starting, which is used to start the aircraft's engine; accessory drive, which provides power to the aircraft's accessories; and subsystem checkout, which allows for testing and verification of the aircraft's subsystems.

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  • 22. 

    It is critically important on the U-2 that you check the turbine bypass switch to prevent

    • Valve wear

    • Battery drain

    • Compartment fire

    • Indicator light failure

    Correct Answer
    A. Valve wear
    Explanation
    Checking the turbine bypass switch on the U-2 is crucial because it helps prevent valve wear. Valve wear can occur if the switch is not checked, which can lead to malfunctioning valves and potential damage to the turbine system. By regularly checking the switch, any issues can be detected early on and necessary maintenance can be performed to prevent valve wear and ensure the smooth operation of the U-2.

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  • 23. 

    Which spark plugs are driven by power box 1 in the RQ-1's engine ignition system?

    • Top spark plugs in all cylinders

    • Bottom spark plugs in all cylinders

    • All spark plugs in the left bank of cylinders

    • Top spark plugs in cylinders 1 and 2, and the bottom spark plugs in cylinders 3 and 4

    Correct Answer
    A. Top spark plugs in cylinders 1 and 2, and the bottom spark plugs in cylinders 3 and 4
    Explanation
    The power box 1 in the RQ-1's engine ignition system drives the top spark plugs in cylinders 1 and 2, and the bottom spark plugs in cylinders 3 and 4.

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  • 24. 

    At what engine speed (in revolutions per minute [RPM]) does the starter/alternator automatically start acting as an alternator on the RQ-1?

    • 550

    • 1,150

    • 1,600

    • 2,200

    Correct Answer
    A. 1,600
    Explanation
    The correct answer is 1,600 RPM. This means that at an engine speed of 1,600 revolutions per minute, the starter/alternator on the RQ-1 will automatically start acting as an alternator.

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  • 25. 

    On the A-10, the main landing gear uplock cylinder hydraulically releases the uplock

    • Hooks

    • Rollers

    • Switch

    • Mechanism

    Correct Answer
    A. Hooks
    Explanation
    The main landing gear uplock cylinder on the A-10 releases the uplock hooks. These hooks are responsible for securing the landing gear in the up position. When the hydraulics release the uplock hooks, the landing gear is able to be lowered or deployed.

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  • 26. 

    The main landing gear strut on the U-2 is constructed of

    • Aluminum alloy

    • Stainless steel

    • Composites

    • Titanium

    Correct Answer
    A. Titanium
    Explanation
    The main landing gear strut on the U-2 is constructed of titanium. Titanium is known for its high strength-to-weight ratio, making it an ideal material for aerospace applications. It is lightweight, yet strong enough to withstand the forces and stress during landing. Additionally, titanium is highly resistant to corrosion, which is crucial for an aircraft that operates at high altitudes and in various weather conditions. Therefore, using titanium for the main landing gear strut ensures durability, reliability, and optimal performance of the U-2 aircraft.

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  • 27. 

    On the U-2, you set the aileron trim tabs to neutral if they are slightly warped by 

    • Bending the tabe until it is straight

    • Installing a jig to realign the wing

    • Replacing the tab and rig the roll control system

    • Aligning the tabs as close to the middle as possible

    Correct Answer
    A. Aligning the tabs as close to the middle as possible
    Explanation
    On the U-2, if the aileron trim tabs are slightly warped, the correct action is to align them as close to the middle as possible. This means adjusting the tabs so that they are in a neutral position, neither causing the aircraft to roll to one side nor the other. This adjustment ensures that the ailerons function properly and maintain the desired level of control during flight.

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  • 28. 

    The U-2 flight control system that reduced the wing and empennage structural loading during high speed or rough air operation by shifting both aileron wing surfaces and wing flaps upward is the 

    • Stability augmentation

    • Gust control

    • Pitch trim

    • Roll trim

    Correct Answer
    A. Gust control
    Explanation
    The U-2 flight control system that shifts both aileron wing surfaces and wing flaps upward reduces the wing and empennage structural loading during high speed or rough air operation. This helps to counteract the effects of gusts of wind, hence providing better control and stability to the aircraft. Therefore, the correct answer is gust control.

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  • 29. 

    The allowable leakage for static seals on the U-2 is

    • None

    • A few drops overnight

    • Two drops per minute when pressurized

    • Two drops per minute when not pressurized

    Correct Answer
    A. None
    Explanation
    The correct answer is "none". This means that there should be no leakage at all for static seals on the U-2. Static seals are designed to prevent any fluid or gas from leaking out or entering into a system when there is no movement or pressure applied. Therefore, it is crucial for these seals to have zero leakage to ensure the proper functioning and safety of the U-2.

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  • 30. 

    To prevent potential tank explosion during combat, the Z-10's integral fuel tanks are filled with

    • Rubber

    • Ballistic foam

    • Polyurethane foam

    • Composite materials

    Correct Answer
    A. Polyurethane foam
    Explanation
    Polyurethane foam is used to fill the integral fuel tanks of the Z-10 helicopter to prevent potential tank explosions during combat. Polyurethane foam is known for its excellent fire resistance and insulation properties. It acts as a barrier between the fuel and the external environment, reducing the risk of ignition and explosion. This foam also helps to absorb impact and reduce the chances of fuel leakage in case of any damage to the tanks. Therefore, filling the fuel tanks with polyurethane foam is an effective safety measure to enhance the combat survivability of the Z-10 helicopter.

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  • 31. 

    The danger associated with a functioning lift transducer on the A-10 is

    • Radiation

    • Extreme heat

    • Electrical shock

    • Sudden movement

    Correct Answer
    A. Extreme heat
    Explanation
    The danger associated with a functioning lift transducer on the A-10 is extreme heat. This means that the lift transducer can become excessively hot, posing a risk to the aircraft or personnel. Extreme heat can lead to damage or malfunction of the transducer, potentially affecting the lift control system of the aircraft. It is important to ensure proper cooling mechanisms and maintenance procedures to prevent overheating and mitigate the associated dangers.

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  • 32. 

    The A-10 nose wheel steering is initiated in the commanded direction by the movement of the rudder pedals in conjunction with a steering command signal generated by the

    • Steering switch

    • Steering collar assembly

    • Position transducer potentiometer

    • Steering unit

    Correct Answer
    A. Position transducer potentiometer
    Explanation
    The A-10 nose wheel steering is initiated by the movement of the rudder pedals, which provides the directional input. However, this movement alone is not sufficient to steer the nose wheel. A steering command signal is also required, which is generated by the position transducer potentiometer. This potentiometer measures the position of the rudder pedals and sends a signal to the steering unit, which then activates the nose wheel steering in the commanded direction. The steering switch and steering collar assembly are not directly involved in initiating the nose wheel steering.

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  • 33. 

    The automated weight and balance program used on the U-2 is maintained by 

    • The crew chief

    • Quality assureance

    • Factory representives

    • The Senior Year program officer

    Correct Answer
    A. Quality assureance
    Explanation
    The correct answer is quality assurance. Quality assurance is responsible for maintaining the automated weight and balance program used on the U-2. This program ensures that the aircraft's weight is properly distributed, which is crucial for safe and efficient operation. Quality assurance personnel are trained to monitor and verify the accuracy and reliability of the program, ensuring that it is up to date and functioning correctly. They play a vital role in ensuring the overall safety and performance of the U-2 aircraft.

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  • 34. 

    The U-2's sump tank manifolds are checked for moisture during which inspection?

    • Baisc post flight

    • Thru-flight

    • Pre-flight

    • Periodic

    Correct Answer
    A. Baisc post flight
    Explanation
    The U-2's sump tank manifolds are checked for moisture during the basic post flight inspection. This inspection is conducted after each flight to ensure that the aircraft is in proper working condition. Checking for moisture in the sump tank manifolds is important as it can indicate the presence of any leaks or damage in the fuel system. By identifying and addressing these issues during the basic post flight inspection, the aircraft's safety and performance can be maintained.

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  • 35. 

    Peculiar maintenance procedures exist for the U-2 because of the 

    • Need to maintain its lightweight characteristics

    • Standard reconnaissance design philosophy

    • Special purpose of the aircraft

    • Its flight characteristics

    Correct Answer
    A. Need to maintain its lightweight characteristics
    Explanation
    The U-2 aircraft has peculiar maintenance procedures because it needs to maintain its lightweight characteristics. This suggests that the maintenance procedures are specifically designed to ensure that the aircraft remains lightweight, which is likely important for its performance and functionality. It implies that any maintenance or repairs done on the U-2 must be carried out in a way that does not compromise its lightweight nature.

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  • 36. 

    What type fuel tanks are used on the RQ-1?

    • Conformal

    • Rubberized fuel bladders mounted in the fuselage

    • External fuselage tanks

    • Integral wing tanks

    Correct Answer
    A. Rubberized fuel bladders mounted in the fuselage
    Explanation
    Rubberized fuel bladders mounted in the fuselage are used on the RQ-1. This type of fuel tank is designed to be flexible and conform to the shape of the fuselage, allowing for efficient use of space. The rubberized material provides durability and helps prevent fuel leaks. By being mounted inside the fuselage, these fuel bladders also offer protection from external elements and potential damage.

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  • 37. 

    All items, not part of the basic weight, installed on the U-2 aircraft are recorded on the

    • AFTO Form 781A, Maintenance Discrepancy and Work Document

    • AFTO Form 781C, Avionics Configuration and Load Status Document

    • WR-ALC/LR Form 52, Automated Weight and Balance Form

    • LR Form 52, Manual Weight and Balance Form

    Correct Answer
    A. AFTO Form 781C, Avionics Configuration and Load Status Document
  • 38. 

    On RQ-1's engine, oil is forced out of the sump in the crankcase and back to the oil reservoir by

    • Blow-by gases

    • A camshaft-driven pump mounted in crankcase

    • An electrically operated pump mounted in crankcase

    • An electrically operated suction pump mounted inside the reservoir

    Correct Answer
    A. Blow-by gases
    Explanation
    The oil is forced out of the sump in the crankcase and back to the oil reservoir by blow-by gases. This means that when the engine is running, some of the gases produced during combustion can leak past the piston rings and into the crankcase. These gases then create pressure in the crankcase, which pushes the oil out of the sump and back into the reservoir. This process helps to ensure proper lubrication of the engine components and prevents oil from accumulating in the crankcase.

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  • 39. 

    What is the approximate front tank to back tank fuel ratio on the RQ-1?

    • 1:1

    • 1:2

    • 2:3

    • 3:2

    Correct Answer
    A. 3:2
    Explanation
    The approximate front tank to back tank fuel ratio on the RQ-1 is 3:2. This means that for every 3 units of fuel in the front tank, there are 2 units of fuel in the back tank. This ratio is important for maintaining the balance and stability of the aircraft during flight.

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  • 40. 

    On the A-10, hydraulic pressure from the left system is directed to the nose drag strut actuators by 

    • Uplock cylinder

    • Landing gear control valve

    • Weight-on-wheels switch

    • Downlock override

    Correct Answer
    A. Landing gear control valve
    Explanation
    The landing gear control valve on the A-10 directs hydraulic pressure from the left system to the nose drag strut actuators. This valve is responsible for controlling the flow of hydraulic fluid to different components of the landing gear system, including the nose drag strut actuators. By directing the hydraulic pressure, the landing gear control valve ensures proper operation and functionality of the landing gear during takeoff, landing, and taxiing.

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  • 41. 

    The number of hydraulic power supply systems on the A-10 is 

    • One

    • Two

    • Three

    • Four

    Correct Answer
    A. Two
    Explanation
    The A-10 aircraft has two hydraulic power supply systems. This means that there are two separate systems in place to provide hydraulic power for various functions and components of the aircraft. Having two systems ensures redundancy and reliability, as if one system fails, the other can still provide the necessary hydraulic power. This is crucial for the safe operation of the aircraft and allows for continued functionality even in the event of a failure in one of the systems.

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  • 42. 

    You reset the A-10hydraulic filter differential pressure (ΔP) indicator after it has actuated by 

    • Pushing the ΔP indicator in

    • Removing the filter bowl, inverting it, and depressing the button

    • Removing the filter bowl, and then resetting the button

    • Changing out the filter bowl assembly

    Correct Answer
    A. Removing the filter bowl, inverting it, and depressing the button
    Explanation
    To reset the A-10 hydraulic filter differential pressure (ΔP) indicator after it has actuated, you need to remove the filter bowl, invert it, and depress the button. This process allows the indicator to be reset and ready for further use. By removing the filter bowl, you can access the indicator, and inverting it helps to release any trapped pressure. Depressing the button ensures that the indicator is properly reset and can accurately measure the differential pressure again.

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  • 43. 

    The percentage of engine thrust the A-10's TF34-GE-100A engine fan bypass stream accounts for is

    • 75

    • 80

    • 85

    • 90

    Correct Answer
    A. 85
    Explanation
    The A-10's TF34-GE-100A engine fan bypass stream accounts for 85% of the engine thrust. This means that a significant portion of the engine's thrust is generated by the bypass stream, which is the air that bypasses the combustion process and flows directly out of the engine's exhaust. This design allows for improved fuel efficiency and reduced noise levels.

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  • 44. 

    The A-10 can be refueled in flight by a tanker aircraft equipped with a 

    • Static boom

    • Flying boom

    • Refueling basket

    • Refueling drogue

    Correct Answer
    A. Flying boom
    Explanation
    The A-10 can be refueled in flight by a tanker aircraft equipped with a flying boom. A flying boom is a rigid tube that extends from the tanker aircraft and is inserted into a receptacle on the receiving aircraft, in this case, the A-10. This method of refueling allows for a faster and more efficient transfer of fuel compared to other methods such as using a refueling basket or drogue. The flying boom provides a stable and secure connection between the tanker and the A-10, ensuring a safe and successful refueling operation.

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  • 45. 

    The ice detector probe on the RQ-1 detects ice

    • Through temperature calculations

    • Through a change in its resonant frequency

    • By calculating probe deflection caused by the excess mass of ice

    • By calculating the electrical resistance of the super-cooled probe surface

    Correct Answer
    A. Through a change in its resonant frequency
    Explanation
    The ice detector probe on the RQ-1 detects ice through a change in its resonant frequency. This means that when ice forms on the probe, it causes a shift in the frequency at which the probe naturally vibrates. By detecting this change, the probe can determine the presence of ice. This method is effective because the presence of ice alters the physical properties of the probe, leading to a change in its resonant frequency.

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  • 46. 

    The number of fusible plugs incorporated in each A-10 main landing gear wheel is

    • Two

    • Three

    • Four

    • Five

    Correct Answer
    A. Three
    Explanation
    The correct answer is three because each A-10 main landing gear wheel is equipped with three fusible plugs. These plugs are designed to melt at a specific temperature, allowing the release of hydraulic pressure and preventing the wheel from overheating or exploding in case of a fire. Having three plugs ensures redundancy and increases the safety of the landing gear system.

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  • 47. 

    The four mount pads on the U-2 center section, aside from being attach points for the RG130 ground handling cart, are used for aircraft

    • Jacking

    • Towing

    • Hoisting

    • Tie down

    Correct Answer
    A. Tie down
    Explanation
    The four mount pads on the U-2 center section serve multiple purposes. Apart from being attach points for the RG130 ground handling cart, they are also used for aircraft jacking, towing, hoisting, and tie down. This means that the mount pads can be utilized to secure the aircraft in place during various operations, ensuring its stability and safety.

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  • 48. 

    The external power monitor on the A-10 measures the frequency, voltage sequence, and phase sequence of external AC power applied to the aircraft and

    • Converts the voltage to that of the aircraft

    • Sends the power to the generator control unit

    • Makes the power compatible with the aircraft DC system

    • Determines whether the power is compatible with the aircraft electrical system

    Correct Answer
    A. Determines whether the power is compatible with the aircraft electrical system
    Explanation
    The external power monitor on the A-10 determines whether the power is compatible with the aircraft electrical system. This means that it checks if the frequency, voltage sequence, and phase sequence of the external AC power applied to the aircraft are within the acceptable range for the aircraft's electrical system. If the power is not compatible, the monitor may prevent the power from being sent to the generator control unit or convert it to a compatible voltage for the aircraft's DC system.

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  • 49. 

    The U-2 aircraft lift spoilers are used to assist in landing and

    • Reduced speed

    • Increased speed

    • Ascent to altitude

    • Descent from altitude

    Correct Answer
    A. Descent from altitude
    Explanation
    The U-2 aircraft lift spoilers are used to assist in descent from altitude. Spoilers are devices on the wings that disrupt the airflow and reduce lift, allowing the aircraft to descend more quickly. By deploying the spoilers, the U-2 can increase drag and decrease lift, enabling a controlled descent from higher altitudes. This helps the aircraft to safely and efficiently descend to lower altitudes during its flight.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 07, 2010
    Quiz Created by
    Mike872208
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