2A652 Aerospace Ground Equipment CDCs (Vol 4)

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Dinstaar
D
Dinstaar
Community Contributor
Quizzes Created: 4 | Total Attempts: 11,850
| Attempts: 3,157
SettingsSettings
Please wait...
  • 1/90 Questions

    Repair of ground heater equipment should never be attempted 

    • Without first talking with the operator
    • Without first consulting your supervisor
    • Unless accurate technical data is available
    • Unless the presence of an experienced mechanic
Please wait...
About This Quiz

This is a quiz on Aerospace Ground Equipment CDC (Vol 4) 2A652

2A652 Aerospace Ground Equipment CDCs (Vol 4) - Quiz

Quiz Preview

  • 2. 

    During an operational check of the MJ-1B bomblift, all hydraulic components should exhibit

    • Movement only when actuated

    • No jumping movements

    • No binding movements

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    During an operational check of the MJ-1B bomblift, all hydraulic components should exhibit movement only when actuated, meaning they should only move when they are intentionally activated. They should not have any jumping movements, which would indicate a sudden and unexpected motion. Additionally, there should be no binding movements, which would suggest that the components are stuck or not moving smoothly. Therefore, all of the above statements are correct and should be observed during the operational check of the MJ-1B bomblift.

    Rate this question:

  • 3. 

    When a line is removed from a hydraulic test stand, you should

    • Replace it with the same type of line

    • Mark all the location of the line

    • Seal all openings

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    When a line is removed from a hydraulic test stand, it is important to replace it with the same type of line to ensure compatibility and proper functioning of the system. Additionally, marking all the locations of the line helps in identifying the correct placement during reassembly. Lastly, sealing all openings is necessary to prevent any leakage or contamination. Therefore, all of the above options should be followed when removing a line from a hydraulic test stand.

    Rate this question:

  • 4. 

    When filling and bleeding the MJ-2A-1 hydraulic test stand, the system should be pressurized and bled until

    • The sight tube is filled with bubbles

    • Fluid in the sight tube is blue in color

    • Fluid in the sight tube turns a milky color

    • A solid column of fluid can be seen in the sight tube

    Correct Answer
    A. A solid column of fluid can be seen in the sight tube
  • 5. 

    Where can you find test procedures for a particular component?

    • Unit TO

    • Illustrated parts breakdown

    • Service inspection workcards

    • Periodic inspection workcards

    Correct Answer
    A. Unit TO
    Explanation
    The correct answer is "Unit TO". Unit TO stands for Unit Technical Order, which is a document that provides detailed instructions and procedures for testing and maintaining specific components or equipment. It is a comprehensive resource that guides technicians on how to perform tests and inspections on a particular component. By referring to the Unit TO, technicians can ensure that they follow the correct procedures and guidelines for testing the component effectively.

    Rate this question:

  • 6. 

    Heat added to a gaseous substance is known as

    • Super heat

    • Latent heat

    • Specific heat

    • Sensible heat

    Correct Answer
    A. Super heat
    Explanation
    Superheat refers to the additional heat added to a gaseous substance above its boiling point, without causing it to change into a liquid state. It is the heat energy that remains in the gas after it has reached its boiling point. This term is commonly used in the context of refrigeration and air conditioning systems, where superheated gases are important for efficient heat transfer and cooling processes.

    Rate this question:

  • 7. 

    What equipment inspection requires the inspection of only asterisked items in the workcards?

    • Annual

    • Phase 1

    • Service

    • Phase 2

    Correct Answer
    A. Phase 1
    Explanation
    Phase 1 equipment inspection requires the inspection of only asterisked items in the workcards. This means that during Phase 1, only specific items marked with an asterisk on the workcards need to be inspected. It is likely that Phase 1 is a specific stage or process in the equipment inspection where only these selected items are prioritized for inspection.

    Rate this question:

  • 8. 

    What technical order (TO) contains the periodic inspection (PE) section?

    • Operation and service TO

    • Illustrated parts TO

    • Lubrication chart TO

    • Overhaul TO

    Correct Answer
    A. Operation and service TO
    Explanation
    The periodic inspection (PE) section is typically found in the Operation and service TO (Technical Order). This TO provides instructions for the regular operation and maintenance of equipment, including scheduled inspections to ensure its proper functioning. It outlines the procedures and requirements for conducting periodic inspections to identify and address any potential issues or maintenance needs. Therefore, the Operation and service TO is the most appropriate TO that contains the periodic inspection section.

    Rate this question:

  • 9. 

    When troubleshooting the electrical system on the MJ-1B bomblift, what component will give you a visual indication that the alternator is charging?

    • Ammeter

    • Voltmeter

    • Head light

    • Control panel light

    Correct Answer
    A. Ammeter
    Explanation
    The ammeter is the correct answer because it is a component that measures the current flowing through the electrical system. When the alternator is charging, it will produce a current that can be measured by the ammeter. Therefore, if the ammeter shows a positive reading, it indicates that the alternator is charging the electrical system.

    Rate this question:

  • 10. 

    When servicing the hydraulic cart, what prevents large particles in the fluid from entering the reservoir?

    • Line filter

    • Check valve

    • Mesh screen

    • Relief valve

    Correct Answer
    A. Mesh screen
    Explanation
    A mesh screen is used to prevent large particles in the fluid from entering the reservoir when servicing the hydraulic cart. The mesh screen acts as a filter, allowing only smaller particles and clean fluid to pass through while blocking larger particles. This helps to maintain the cleanliness and integrity of the hydraulic system, preventing any potential damage or contamination from occurring.

    Rate this question:

  • 11. 

    A good refrigerant would

    • Operate with low pressure

    • Have a low boiling point

    • Not be poisonous

    • Operate with low pressure, have a low boiling point, and not be poisonous

    Correct Answer
    A. Operate with low pressure, have a low boiling point, and not be poisonous
    Explanation
    A good refrigerant needs to operate with low pressure in order to minimize the risk of system failures and leaks. It should also have a low boiling point so that it can easily absorb heat from the surroundings and turn into a vapor. Additionally, it should not be poisonous to ensure the safety of both the environment and individuals who come into contact with it. Therefore, a good refrigerant should possess all of these qualities: operate with low pressure, have a low boiling point, and not be poisonous.

    Rate this question:

  • 12. 

    When starting the MA-3D air conditioner, hold the safety override switch until 

    • The engine starts

    • The engine warms up

    • You release the start switch

    • 30 psi oil pressure is registered on the engine oil pressure gauge

    Correct Answer
    A. 30 psi oil pressure is registered on the engine oil pressure gauge
    Explanation
    When starting the MA-3D air conditioner, it is important to hold the safety override switch until 30 psi oil pressure is registered on the engine oil pressure gauge. This ensures that the engine has reached the necessary oil pressure for it to function properly. Holding the switch until this pressure is reached helps to prevent any potential damage or malfunctions that could occur if the engine is started without sufficient oil pressure.

    Rate this question:

  • 13. 

    Prior to performing maintenance on a liquid oxygen (LOX) cart you should ensure that 

    • The brake is holding

    • Your tools are free of grease and oil and the cart is drained

    • That it is parked on asphalt

    • The shop doors are closed

    Correct Answer
    A. Your tools are free of grease and oil and the cart is drained
    Explanation
    Before performing maintenance on a liquid oxygen (LOX) cart, it is important to ensure that your tools are free of grease and oil and the cart is drained. This is necessary to prevent any contamination or potential hazards that could arise from the presence of grease, oil, or residual liquid oxygen in the cart. By ensuring that the tools are clean and the cart is drained, you can minimize the risk of accidents or damage during the maintenance process.

    Rate this question:

  • 14. 

    At what storage cylinder pressure should the self generating nitrogen servicing cart (SGNSC) stop producing nitrogen?

    • 2400 psig

    • 4100 psig

    • 4400 psig

    • 6400 psig

    Correct Answer
    A. 4400 psig
    Explanation
    The self generating nitrogen servicing cart (SGNSC) should stop producing nitrogen at a storage cylinder pressure of 4400 psig.

    Rate this question:

  • 15. 

    What valve on the MJ-1B bomblift prevents collapsing of the cantilever lifting arms in the even of hydraulic pressure failure?

    • Air bleed

    • Rotary by-pass

    • Counterbalance

    • Over pressurization

    Correct Answer
    A. Counterbalance
    Explanation
    The counterbalance valve on the MJ-1B bomblift prevents collapsing of the cantilever lifting arms in the event of hydraulic pressure failure. This valve is designed to maintain a consistent pressure in the system, ensuring that the lifting arms remain stable and do not collapse. It acts as a safety mechanism, providing stability and preventing any potential accidents or damage that could occur if the arms were to collapse.

    Rate this question:

  • 16. 

    What is used to raise the mast on the FL-1D?

    • Screw mechanism

    • Pneumatic controls

    • Hydraulic cylinder

    • Hand-operated cable

    Correct Answer
    A. Hand-operated cable
    Explanation
    A hand-operated cable is used to raise the mast on the FL-1D. This implies that there is a cable that can be manually operated by hand to raise the mast. The other options, such as screw mechanism, pneumatic controls, and hydraulic cylinder, do not mention the use of a hand-operated cable and therefore are not the correct answer.

    Rate this question:

  • 17. 

    The amount of heat required to raise the temperature of one pound of substance one degree Fahrenheit is known as

    • Super heat

    • Latent heat

    • British Thermal Unit (BTU)

    • Sensible heat

    Correct Answer
    A. British Thermal Unit (BTU)
    Explanation
    The correct answer is British Thermal Unit (BTU). BTU is a unit of measurement used to quantify the amount of heat energy required to raise the temperature of one pound of a substance by one degree Fahrenheit. It is commonly used in the field of heating, ventilation, and air conditioning (HVAC) to determine the heating or cooling capacity of systems.

    Rate this question:

  • 18. 

    What component provides manual speed adjustment on the AF/M32T-1 cabin leakage tester?

    • Throttle

    • Tachometer

    • Diesel engine

    • Fuel system relief valve

    Correct Answer
    A. Throttle
    Explanation
    The throttle is the component that provides manual speed adjustment on the AF/M32T-1 cabin leakage tester. The throttle controls the amount of fuel and air entering the engine, which in turn determines the speed of the engine. By adjusting the throttle, the operator can increase or decrease the speed of the cabin leakage tester, allowing for precise control and adjustment during testing.

    Rate this question:

  • 19. 

    When should you use starting aids to start the New Generation Heater?

    • Never

    • Occasionally

    • When the temperature gauge reads COOL

    • When ambient temperature is below 32 degrees F

    Correct Answer
    A. Never
    Explanation
    Starting aids should never be used to start the New Generation Heater. This implies that the heater does not require any external assistance or additives to initiate its operation. It is designed to start without the need for starting aids, indicating that the heater is self-sufficient and can initiate its function under normal conditions without any additional help.

    Rate this question:

  • 20. 

    Oil in the rotary vane compressor

    • Lubricates the connecting rods

    • Has high viscosity and is very inflammable

    • Forms a seal between the vanes and the stator

    • Permits it to be typed as a high pressure unit

    Correct Answer
    A. Forms a seal between the vanes and the stator
    Explanation
    The oil in the rotary vane compressor forms a seal between the vanes and the stator. This is important because it helps prevent leakage of compressed gas and ensures efficient operation of the compressor. The oil acts as a barrier between the moving vanes and the stationary stator, reducing friction and wear. It also helps to maintain a tight seal, allowing the compressor to generate and maintain high pressure.

    Rate this question:

  • 21. 

    What component on the self generating nitrogen servicing cart (SGNSC) removes nitrogen from the ambient air?

    • Filters

    • Carbon absorber

    • Booster compressor

    • Separation membrane

    Correct Answer
    A. Separation membrane
    Explanation
    A separation membrane is a component on the self-generating nitrogen servicing cart (SGNSC) that removes nitrogen from the ambient air. This membrane is designed to selectively allow the passage of nitrogen molecules while blocking other gases, such as oxygen and moisture. As the ambient air is passed through the separation membrane, nitrogen molecules are separated and collected, resulting in a purified nitrogen stream. This purified nitrogen can then be used for various applications, such as inflating aircraft tires or servicing pneumatic systems.

    Rate this question:

  • 22. 

    A fresh hydraulic leak will be

    • Oily and red

    • Oily and pink

    • Sticky and red

    • Sticky and pink

    Correct Answer
    A. Oily and red
    Explanation
    A fresh hydraulic leak will be oily and red because hydraulic fluid is typically red in color and has a viscous, oily consistency.

    Rate this question:

  • 23. 

    You check the backup hydraulic system on the MHU83C/E bomblift by

    • Closing the shutoff valve

    • Operating the hand pump

    • Closing the air bleed valve

    • Operating the system pump

    Correct Answer
    A. Operating the hand pump
    Explanation
    To check the backup hydraulic system on the MHU83C/E bomblift, you need to operate the hand pump. This is because the hand pump is responsible for manually pressurizing the hydraulic system in case of a power failure or malfunction. By operating the hand pump, you can ensure that the backup hydraulic system is functioning properly and ready to be used if needed.

    Rate this question:

  • 24. 

    If the started failed to operate on a bomblift, which step should you take first?

    • Check the starter cables

    • Remove and replace the starter

    • Remove and replace the battery

    • Check the battery terminals and posts

    Correct Answer
    A. Check the battery terminals and posts
    Explanation
    If the starter failed to operate on a bomblift, the first step should be to check the battery terminals and posts. This is because loose or corroded connections can prevent the starter from receiving enough power to operate. By checking and ensuring the battery terminals and posts are clean and secure, it can help identify and resolve any issues related to the power supply, before considering other potential causes such as faulty starter cables or a malfunctioning starter.

    Rate this question:

  • 25. 

    When performing a front end alignment on a nitrogen servicing unit, what component would you adjust to equalize the distance from each steering knuckle king pin to the center of the towbar lunette eye?

    • Tie rod ends

    • Clevis pins

    • Steering knuckle

    • Brake cable assembly

    Correct Answer
    A. Tie rod ends
    Explanation
    When performing a front end alignment on a nitrogen servicing unit, the component that would be adjusted to equalize the distance from each steering knuckle king pin to the center of the towbar lunette eye is the tie rod ends. The tie rod ends are responsible for connecting the steering linkage to the wheels, and adjusting them will help ensure that the wheels are properly aligned and the vehicle moves in a straight line.

    Rate this question:

  • 26. 

    The self generating nitrogen servicing cart (SGNSC) is categorized as a 

    • High-pressure air compressor

    • Low-pressure air compressor

    • High volume air compressor

    • Low volume air compressor

    Correct Answer
    A. High-pressure air compressor
    Explanation
    The self-generating nitrogen servicing cart (SGNSC) is categorized as a high-pressure air compressor because it is designed to generate and deliver nitrogen at high pressures. This type of compressor is typically used for applications that require high-pressure air, such as filling aircraft tires or providing pneumatic power for aircraft systems. The SGNSC is specifically designed to generate nitrogen, which is often used in aviation for various purposes, including purging and pressurizing aircraft systems. Therefore, it is classified as a high-pressure air compressor rather than a low-pressure air compressor or a high or low volume air compressor.

    Rate this question:

  • 27. 

    What is important to keep in mind when performing maintenance on the self generating nitrogen servicing cart (SGNSC)?

    • Safety

    • Ventilation

    • Wind Direction

    • Weather conditions

    Correct Answer
    A. Safety
    Explanation
    When performing maintenance on the self-generating nitrogen servicing cart (SGNSC), it is important to prioritize safety. This means following all necessary safety protocols and guidelines to ensure the well-being of the maintenance personnel and prevent any accidents or injuries. Safety should always be the top priority when working with any equipment or machinery, including the SGNSC.

    Rate this question:

  • 28. 

    Continuous movement of pressurized hydraulic fluid in the MJ-1B bomblift causes the fluid to become

    • Cooled

    • Heated

    • Compressed

    • Contaminated

    Correct Answer
    A. Heated
    Explanation
    The continuous movement of pressurized hydraulic fluid in the MJ-1B bomblift causes friction, which generates heat. As the fluid flows through the system, it absorbs this heat and becomes heated.

    Rate this question:

  • 29. 

    What can be used to relieve tension from the lock to disengage the latch from the striker plate on the FL-1D when lowering the mast?

    • Screw mechanism

    • Pneumatic control

    • Hydraulic cylinder

    • Mast erection crank

    Correct Answer
    A. Mast erection crank
    Explanation
    The mast erection crank can be used to relieve tension from the lock and disengage the latch from the striker plate on the FL-1D when lowering the mast. This crank allows for manual operation and control of the mast, providing a way to release the tension and safely lower the mast without causing damage or injury.

    Rate this question:

  • 30. 

    When does the heater control unit (HCU) on the New Generation Heater start the main air fan for output air?

    • When a heat setting is selected

    • Once constant flame is established

    • When the temperature gauge reads COOL

    • When the inside temperature reaches 140 degrees F

    Correct Answer
    A. When the inside temperature reaches 140 degrees F
    Explanation
    The heater control unit (HCU) on the New Generation Heater starts the main air fan for output air when the inside temperature reaches 140 degrees F. This indicates that the heater has reached the desired temperature and is ready to distribute warm air. Once the temperature reaches this threshold, the HCU activates the main air fan to circulate the heated air throughout the space. This ensures that the desired temperature is maintained and that the heating system is functioning properly.

    Rate this question:

  • 31. 

    The type of inspection that requires the most tear down of specific components is the

    • Daily inspection

    • Service inspection

    • Special inspection

    • Periodic inspection

    Correct Answer
    A. Special inspection
    Explanation
    Special inspections typically involve a more thorough examination of specific components or systems. Unlike daily inspections, which are routine and focus on basic checks, special inspections require more tear down and investigation. They are often performed to identify hidden issues or to assess the condition of critical components that may not be easily accessible during regular inspections. Service inspections and periodic inspections may involve a more comprehensive assessment of the overall vehicle, but they do not necessarily require as much tear down of specific components as special inspections do.

    Rate this question:

  • 32. 

    What type of refrigerant system leak occurs when the pressure within the system is less than atmospheric pressure?

    • Vaccum leaks

    • Inward leaks

    • Outward leaks

    • Pressure leaks

    Correct Answer
    A. Inward leaks
    Explanation
    Inward leaks occur when the pressure within the refrigerant system is less than atmospheric pressure. This means that air or other substances from the outside are being drawn into the system, causing a decrease in pressure. Inward leaks can be problematic as they can introduce contaminants into the system and affect its efficiency. It is important to identify and fix inward leaks to maintain the proper functioning of the refrigerant system.

    Rate this question:

  • 33. 

    The first step of troubleshooting heater equipment is

    • Analysis

    • Isolation

    • Recognition

    • Verification

    Correct Answer
    A. Recognition
    Explanation
    The first step of troubleshooting heater equipment is recognition. This means identifying and acknowledging the problem or issue with the equipment. It involves observing and understanding the symptoms or signs of malfunctioning in order to determine the root cause. By recognizing the problem, technicians can then proceed to the next steps of analysis, isolation, and verification to effectively troubleshoot and resolve the issue.

    Rate this question:

  • 34. 

    What medium is used to cool the MC-2A rotary vane compressor?

    • Oil

    • Air

    • Water

    • Hydraulic fluid

    Correct Answer
    A. Oil
    Explanation
    The MC-2A rotary vane compressor is cooled using oil. Oil is commonly used as a cooling medium in compressors because it has excellent heat transfer properties and can effectively dissipate heat generated during compression. The oil circulates through the compressor, absorbing heat from the internal components and carrying it away. This helps to prevent overheating and ensures the compressor operates efficiently and reliably.

    Rate this question:

  • 35. 

    Prior to performing any maintenance on an air compressor airflow system, you should

    • Drain the receiver

    • Turn off all switches

    • Disconnect the battery

    • Relieve all air pressure

    Correct Answer
    A. Relieve all air pressure
    Explanation
    Before performing any maintenance on an air compressor airflow system, it is important to relieve all air pressure. This is necessary to ensure the safety of the person carrying out the maintenance. If the air pressure is not relieved, there is a risk of sudden release of compressed air, which can cause injury. Therefore, it is crucial to release the air pressure before starting any maintenance tasks on the air compressor.

    Rate this question:

  • 36. 

    The purpose of the lift mechanism on the towbar is to

    • Adjust the forks

    • Suppose the running gear

    • Stabilize the main tube assembly

    • Raise and lower the wheel assemblies

    Correct Answer
    A. Raise and lower the wheel assemblies
    Explanation
    The lift mechanism on the towbar is designed to raise and lower the wheel assemblies. This allows for easier maneuverability and transportation of the towed object. By raising the wheel assemblies, the towbar can be easily attached or detached from the object being towed. Lowering the wheel assemblies allows for better stability and prevents the object from rolling or moving unintentionally during transportation. Overall, the lift mechanism plays a crucial role in the safe and efficient operation of the towbar.

    Rate this question:

  • 37. 

    What component on the New Generation Heater activates the heater control unit (HCU)?

    • Heat control switch

    • Burner control unit

    • Thermostatic sensor

    • Oil pressure switch

    Correct Answer
    A. Heat control switch
    Explanation
    The heat control switch is the component on the New Generation Heater that activates the heater control unit (HCU). When the heat control switch is turned on, it sends a signal to the HCU to start the heating process. This switch allows the user to control the temperature and turn the heater on or off as desired. The other options, such as the burner control unit, thermostatic sensor, and oil pressure switch, may be important components of the heater but they do not directly activate the HCU.

    Rate this question:

  • 38. 

    The heat that changes the state of a substance, yet does not affect the temperature is called

    • Super heat

    • Latent heat

    • Specific heat

    • Sensible heat

    Correct Answer
    A. Latent heat
    Explanation
    Latent heat refers to the heat absorbed or released during a phase change of a substance, such as from solid to liquid or liquid to gas, without causing a change in temperature. This heat is used to break or form intermolecular bonds between particles, resulting in a change of state. Unlike sensible heat, which affects the temperature of a substance, latent heat is responsible for the energy required to undergo a phase transition without changing the temperature.

    Rate this question:

  • 39. 

    How do you verify the proper operation of the centering mechanism on the MHU83C/E bomblift?

    • Unit should move in neutral

    • Unit should start in reverse

    • Unit should not move in neutral

    • Unit should not start in reverse

    Correct Answer
    A. Unit should not move in neutral
    Explanation
    The correct answer is "Unit should not move in neutral." This means that when the centering mechanism on the MHU83C/E bomblift is properly functioning, the unit should remain stationary when in neutral position. If the unit moves in neutral, it indicates a malfunction in the centering mechanism.

    Rate this question:

  • 40. 

    To charge the receiver on the MC-2A air compressor, ensure the air control valve is closed and

    • Let the engine idle

    • Open the receiver drain valve

    • Close the receiver drain valve

    • Open the dehydrator drain valve

    Correct Answer
    A. Close the receiver drain valve
    Explanation
    To charge the receiver on the MC-2A air compressor, it is important to close the receiver drain valve. This valve needs to be closed in order to prevent any air from escaping and to ensure that the receiver is properly pressurized. By closing the drain valve, the air compressor can effectively build up pressure in the receiver, allowing it to store and deliver compressed air as needed.

    Rate this question:

  • 41. 

    When analyzing an air compressor malfunction, you prioritize possible causes by 

    • Starting with the simplest possibilities

    • Starting at the last known source of power

    • Starting with the most complex possibilities

    • Replacing possible malfunctioning components

    Correct Answer
    A. Starting with the simplest possibilities
    Explanation
    When analyzing an air compressor malfunction, it is most efficient to start by considering the simplest possibilities as the cause. This approach helps to eliminate any potential issues that may have simple solutions or require minimal intervention. By addressing these simpler possibilities first, it saves time and resources before moving on to more complex causes.

    Rate this question:

  • 42. 

    As soon as the engine of the MJ-1B starts, you should check for sufficient

    • Oil pressure

    • Fuel pressure

    • Battery charging

    • Hydraulic pressure

    Correct Answer
    A. Oil pressure
    Explanation
    When starting the engine of the MJ-1B, it is important to check for sufficient oil pressure. This is because oil pressure is crucial for proper lubrication and cooling of the engine components. Insufficient oil pressure can lead to excessive friction and heat, causing damage to the engine. Therefore, checking the oil pressure ensures that the engine has the necessary lubrication before it is operated.

    Rate this question:

  • 43. 

    The most obvious and easiest way of isolating most hydraulic malfunctions is to look for

    • Slow operation

    • Erratic operation

    • Fluid under the unit

    • Movement when control valve is not actuated

    Correct Answer
    A. Fluid under the unit
    Explanation
    Fluid under the unit is the most obvious and easiest way of isolating most hydraulic malfunctions. This is because if there is fluid leaking under the unit, it indicates a problem with the hydraulic system such as a damaged seal or a broken hose. By identifying the source of the fluid leak, the specific malfunction can be identified and addressed accordingly.

    Rate this question:

  • 44. 

    Which item is a phase 1 periodic inspection (PE) step?

    • Engine oil change

    • Throughly inspect the engine

    • Paint condition and reflectorization

    • Inspect the internal generator components

    Correct Answer
    A. Engine oil change
    Explanation
    The correct answer is "Engine oil change" because during a phase 1 periodic inspection (PE), one of the steps is to change the engine oil. This is important to ensure that the engine is properly lubricated and running smoothly. By regularly changing the engine oil, any contaminants or debris can be removed, which helps to maintain the overall health and performance of the engine.

    Rate this question:

  • 45. 

    The B-4 adjustable aircraft maintenance platform can attain heights of a minimum of

    • Two feet to a maximum of five feet

    • Three feet to a maximum of seven feet

    • Three feet to a maximum of twelve feet

    • Three feet to a maximum of fifteen feet

    Correct Answer
    A. Three feet to a maximum of seven feet
    Explanation
    The B-4 adjustable aircraft maintenance platform has the capability to adjust its height. It can be adjusted to a minimum height of three feet and a maximum height of seven feet.

    Rate this question:

  • 46. 

    What component on the MA-3D air conditioner allows the operator to control the overall volume of air leaving the unit?

    • Blower control switch

    • Airflow control switch

    • Evaporator control switch

    • Temperature control switch

    Correct Answer
    A. Airflow control switch
    Explanation
    The airflow control switch on the MA-3D air conditioner allows the operator to control the overall volume of air leaving the unit. This switch regulates the speed of the blower, which in turn affects the amount of air being circulated. By adjusting the airflow control switch, the operator can increase or decrease the amount of air being blown out of the air conditioner, thus controlling the overall volume of air.

    Rate this question:

  • 47. 

    The purpose of the low pressure pump on the MJ-2A-1 is to ensure a constant flow of fluid to the

    • Relief valve

    • Aircraft pumps

    • High pressure pump

    • Low pressure filters

    Correct Answer
    A. High pressure pump
    Explanation
    The purpose of the low pressure pump on the MJ-2A-1 is to ensure a constant flow of fluid to the high pressure pump. The high pressure pump requires a steady supply of fluid to operate effectively. The low pressure pump helps maintain a consistent flow of fluid, ensuring that the high pressure pump receives an adequate amount of fluid for its operation. This is important for the overall functioning of the system and to prevent any disruptions or damage to the high pressure pump.

    Rate this question:

  • 48. 

    What switch provides an alternate means of energizing the fill pump when either of the micro switches are defective on the MJ-2A-1 hydraulic test stand?

    • Fill switch, LS4

    • Micro switch, FS1

    • Engine master switch

    • Soft start relay switch

    Correct Answer
    A. Fill switch, LS4
    Explanation
    The fill switch, LS4, provides an alternate means of energizing the fill pump when either of the micro switches are defective on the MJ-2A-1 hydraulic test stand. This means that if one or both of the micro switches fail to function properly, the fill switch can be used as a backup to activate the fill pump and ensure that the hydraulic test stand can still be operated effectively.

    Rate this question:

  • 49. 

    What type of wrench should be used on brass or aluminum fittings?

    • Adjustable wrench

    • Open end wrench

    • Box end wrench

    • Tubing wrench

    Correct Answer
    A. Tubing wrench
    Explanation
    A tubing wrench should be used on brass or aluminum fittings because it provides a secure grip without causing damage or marring the surface of the fittings. This type of wrench has a smooth, rounded jaw that evenly distributes pressure, reducing the risk of stripping or deforming the fittings. It is specifically designed for use with tubing and pipe fittings, ensuring a tight and leak-free connection.

    Rate this question:

Quiz Review Timeline (Updated): Dec 16, 2023 +

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

  • Current Version
  • Dec 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 11, 2009
    Quiz Created by
    Dinstaar

Recent Quizzes

2A652 AGE Journeyman Volume 4, Edit Code 6 Quiz 2A652 AGE Journeyman Volume 4, Edit Code 6 Quiz
Aerospace Ground Equipment CDC Vol. 2 Aerospace Ground Equipment CDC Vol. 2
Aerospace Ground Equipment CDC Vol. 1 Aerospace Ground Equipment CDC Vol. 1
2A672 Volume 2 URE (aircraft) Questions 2A672 Volume 2 URE (aircraft) Questions
2A652 CDC Volume 2: Test Questions on Aerospace Ground Equipment! 2A652 CDC Volume 2: Test Questions on Aerospace Ground Equipment!
2A652 Aerospace Ground Equipment CDC's (VOL 2) 2A652 Aerospace Ground Equipment CDC's (VOL 2)
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.