2AX5X CDC V3 Trivia Quiz

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 Bigdawg
B
Bigdawg
Community Contributor
Quizzes Created: 3 | Total Attempts: 4,222
| Attempts: 804
SettingsSettings
Please wait...
  • 1/116 Questions

    When cleaning aircraft wheels, you should not use

    • A fiber brush.
    • A wire brush.
    • Clean rags.
    • Fiber pads.
Please wait...
About This Quiz

The 2AX5X CDC v3 trivia quiz assesses knowledge on aircraft maintenance, focusing on tubing, hoses, and safety wiring. It's designed for Air Force personnel, enhancing skills in maintaining aircraft integrity and safety.

2AX5X CDC V3 Trivia Quiz - Quiz

Quiz Preview

  • 2. 

    At a minimum, what should you wear when taking an oil sample?

    • Goggles.

    • Goggles and gloves.

    • Gloves and long sleeves.

    • Goggles and long sleeves.

    Correct Answer
    A. Goggles and gloves.
    Explanation
    When taking an oil sample, it is important to wear goggles and gloves as a minimum requirement. Goggles protect the eyes from any splashes or spills that may occur during the sampling process. Gloves, on the other hand, provide protection for the hands, preventing direct contact with the oil which may contain harmful chemicals or contaminants. Wearing both goggles and gloves ensures the safety of the person taking the sample by minimizing the risk of any potential hazards.

    Rate this question:

  • 3. 

    Which torque wrench is designed to automatically release when a predetermined torque value is reached?

    • Indicating type.

    • Breakaway type.

    • Screwdriver type.

    • Internal wrenching type.

    Correct Answer
    A. Breakaway type.
    Explanation
    A breakaway type torque wrench is designed to automatically release when a predetermined torque value is reached. This type of torque wrench is commonly used in applications where over-tightening can cause damage or failure. When the desired torque is reached, the wrench will "breakaway" or disengage, preventing any further torque from being applied. This feature ensures that the torque is accurately and consistently applied without the risk of over-tightening.

    Rate this question:

  • 4. 

    Who is responsible for ensuring that good supply discipline is practiced?

    • Base commanders.

    • Squadron commanders.

    • Supervisors at all levels.

    • Squadron QA section.

    Correct Answer
    A. Supervisors at all levels.
    Explanation
    Supervisors at all levels are responsible for ensuring that good supply discipline is practiced. This means that it is the duty of supervisors, regardless of their rank or position, to oversee and enforce proper supply management practices within their respective areas of responsibility. By doing so, supervisors can ensure that supplies are properly accounted for, stored, and distributed, minimizing waste and ensuring efficient use of resources. This responsibility extends to all levels of supervision, from base commanders down to squadron commanders, as they play a crucial role in promoting and maintaining good supply discipline.

    Rate this question:

  • 5. 

    The purpose of the landing gear warning horn is to

    • Alert the pilot to marker beacons.

    • Sound when the gear are not safe.

    • Sound when the gear is safe.

    • Alert the pilot to a stall.

    Correct Answer
    A. Sound when the gear are not safe.
    Explanation
    The landing gear warning horn is designed to sound when the gear are not safe. This is an important safety feature that alerts the pilot if the landing gear is not properly deployed or locked in place before landing. By sounding the warning horn, it helps prevent accidents or damage to the aircraft that could occur if the gear were not in the correct position.

    Rate this question:

  • 6. 

    The two types of oil coolers used in jet engine oil systems are air/oil and

    • Fuel/oil.

    • Freon/oil.

    • Water/oil.

    • Hydraulic/oil.

    Correct Answer
    A. Fuel/oil.
    Explanation
    In jet engine oil systems, the two types of oil coolers used are air/oil and fuel/oil. Air/oil coolers use the flow of air to cool the oil, while fuel/oil coolers use the flow of fuel to cool the oil. This helps in maintaining the optimal temperature of the oil, preventing it from overheating and ensuring efficient engine operation.

    Rate this question:

  • 7. 

    What part of a cannon plug completes the electrical circuit?

    • Metal shells.

    • Connector halves.

    • Dielectric contacts.

    • Pin-and-socket contacts.

    Correct Answer
    A. Pin-and-socket contacts.
    Explanation
    Pin-and-socket contacts complete the electrical circuit in a cannon plug. These contacts consist of pins on one half of the connector and sockets on the other half. When the plug is inserted into the corresponding socket, the pins and sockets make contact, allowing the flow of electricity between the two halves of the connector. This completes the electrical circuit and enables the transfer of signals or power through the cannon plug.

    Rate this question:

  • 8. 

    Prior to using a torque wrench, cycle the torque wrench through the breakaway torque at the

    • Maximum setting at least four times.

    • Maximum setting at least six times.

    • Lowest setting at least four times.

    • Lowest setting at least six times.

    Correct Answer
    A. Maximum setting at least six times.
    Explanation
    The correct answer is to cycle the torque wrench through the breakaway torque at the maximum setting at least six times. This is because cycling the torque wrench multiple times helps to ensure that it is properly calibrated and ready for use. By doing this at the maximum setting, any potential issues or inconsistencies in the torque wrench can be identified and addressed. Cycling it six times provides a more thorough check and increases the likelihood of detecting any problems.

    Rate this question:

  • 9. 

    A major disadvantage of multiple disc brakes is that they

    • Warp when overheated.

    • Shatter during hard landings.

    • Must be adjusted after each landing.

    • Do not provide maximum stopping grip.

    Correct Answer
    A. Warp when overheated.
    Explanation
    Multiple disc brakes are prone to warping when overheated. This is because excessive heat causes the metal discs to expand unevenly, resulting in a warped shape. This warping can lead to a loss of braking performance and cause vibrations or pulsations when the brakes are applied. It is important to prevent overheating of the brakes by using proper braking techniques and allowing them to cool down between heavy use to avoid this disadvantage.

    Rate this question:

  • 10. 

    What are two stresses that a fastener takes when tightened?

    • Extension and flexion.

    • Tension and torsion.

    • Torque and friction.

    • Push and pull.

    Correct Answer
    A. Tension and torsion.
    Explanation
    When a fastener is tightened, it experiences tension and torsion stresses. Tension refers to the stretching force applied to the fastener, while torsion refers to the twisting or rotational force applied to it. These stresses are important to consider because they can affect the integrity and strength of the fastener, ensuring that it can securely hold the components together.

    Rate this question:

  • 11. 

    The TH inspection is normally performed

    • Prior to going on alert and again before flight after completion of the alert period.

    • After flights when a turn-around sortie or continuation flight is scheduled.

    • Immediately prior to a BPO.

    • After the last flight of a specified flying period.

    Correct Answer
    A. After flights when a turn-around sortie or continuation flight is scheduled.
    Explanation
    The correct answer is after flights when a turn-around sortie or continuation flight is scheduled. This means that the TH inspection is conducted after the completion of a flight when there is a plan for a quick turnaround or continuation flight. This ensures that the aircraft is thoroughly inspected and any necessary maintenance or repairs can be carried out before the next flight.

    Rate this question:

  • 12. 

    Corrosion or deterioration of a metal part begins the instant it is

    • Exposed to moist air.

    • Exposed to a chemical.

    • Connected to another part.

    • Fabricated and manufactured.

    Correct Answer
    A. Fabricated and manufactured.
    Explanation
    When a metal part is fabricated and manufactured, it goes through various processes such as cutting, shaping, and joining. These processes can introduce imperfections or alter the surface of the metal, making it more susceptible to corrosion or deterioration. This is why the corrosion or deterioration of a metal part begins once it has been fabricated and manufactured.

    Rate this question:

  • 13. 

    What type of corrosion can be recognized by a lifting up or swelling of the metal grains?

    • Pitting.

    • Galvanic.

    • Exfoliation.

    • Crevice/concentration cell.

    Correct Answer
    A. Exfoliation.
    Explanation
    Exfoliation corrosion is a type of corrosion that occurs when a metal's grains are lifted up or swollen. This type of corrosion typically happens in alloys, where one metal is more susceptible to corrosion than the other. The corrosion starts at the grain boundaries and progresses inward, causing the grains to lift up or swell. This can weaken the metal and lead to structural failure. Pitting corrosion, on the other hand, involves the formation of small pits or holes on the metal's surface. Galvanic corrosion occurs when two dissimilar metals are in contact in the presence of an electrolyte. Crevice or concentration cell corrosion occurs in narrow crevices or gaps where the concentration of corrosive agents is higher.

    Rate this question:

  • 14. 

    What maintains an airtight seal between split wheel halves?

    • A rubber liner.

    • An O-ring seal.

    • A phenolic ring.

    • Machined mated surfaces.

    Correct Answer
    A. An O-ring seal.
    Explanation
    An O-ring seal is used to maintain an airtight seal between split wheel halves. O-rings are made of rubber or other elastomers and are designed to fit into a groove between two mating surfaces. When compressed, the O-ring creates a tight seal that prevents any leakage of air or other fluids. This makes it an effective choice for maintaining an airtight seal in split wheel halves.

    Rate this question:

  • 15. 

    Corrosion or deterioration of a metal part continues until the part is

    • Painted.

    • Heat treated.

    • Chemically treated.

    • Exhausted or salvaged.

    Correct Answer
    A. Exhausted or salvaged.
    Explanation
    Corrosion or deterioration of a metal part continues until the part is exhausted or salvaged. This means that the corrosion process will continue until the metal part is completely worn out or until it is salvaged, which involves repairing or restoring the part to its original condition. Painting, heat treatment, and chemical treatment may help prevent or slow down corrosion, but they do not completely stop it. Therefore, the only way to fully address the corrosion is by either using the part until it is no longer functional or salvaging it.

    Rate this question:

  • 16. 

    What position must the landing gear control handle be in before emergency extension of the landing gear?

    • UP.

    • DN.

    • AUX.

    • EMRG.

    Correct Answer
    A. DN.
    Explanation
    Before emergency extension of the landing gear, the landing gear control handle must be in the "DN" position. This indicates that the landing gear is being manually lowered and locked into place. The "UP" position would indicate that the landing gear is being retracted, while the "AUX" and "EMRG" positions are not relevant for emergency extension.

    Rate this question:

  • 17. 

    Through the use of spectrometric oil analysis, aircraft will have a higher in-commission rate because there will be

    • More oil sampling.

    • More engine removals.

    • Less unnecessary maintenance.

    • Less wear metal found in the oil.

    Correct Answer
    A. Less unnecessary maintenance.
    Explanation
    The correct answer is "less unnecessary maintenance." Spectrometric oil analysis allows for the detection of wear metals in the oil, which can indicate potential engine problems. By identifying these issues early on, maintenance can be performed only when necessary, reducing the need for unnecessary maintenance. This leads to a higher in-commission rate for aircraft as they spend less time in maintenance and more time in operation.

    Rate this question:

  • 18. 

    Which tool is used to measure the gap between two parts?

    • Multimeter.

    • Depth gauge.

    • Feeler gauge.

    • Torque wrench.

    Correct Answer
    A. Feeler gauge.
    Explanation
    A feeler gauge is a tool used to measure the gap between two parts. It consists of a series of thin metal strips of different thicknesses. By inserting the appropriate strip into the gap, the user can determine the size of the gap based on which strip fits snugly. This tool is commonly used in automotive and mechanical applications to ensure proper clearance between parts, such as spark plug gaps or valve clearances.

    Rate this question:

  • 19. 

    The purpose of the antiskid system is to

    • Reduce friction between the wheel and tire.

    • Increase friction between the wheel and tire.

    • Prevent wheel skid by applying pressure to the skidding wheel.

    • Prevent wheel skid by releasing pressure from the skidding wheel.

    Correct Answer
    A. Prevent wheel skid by releasing pressure from the skidding wheel.
    Explanation
    The antiskid system is designed to prevent wheel skid by releasing pressure from the skidding wheel. When a wheel begins to skid, the antiskid system detects this and reduces the brake pressure on that wheel, allowing it to regain traction. By releasing pressure, the system helps to prevent the wheel from locking up and sliding, which can lead to loss of control and accidents. This allows the driver to maintain steering control and stability, improving overall safety.

    Rate this question:

  • 20. 

    Installed bearing races should be free of scratches, dents, and

    • Dye marks.

    • Paint marks.

    • Blister marks.

    • Overheating marks.

    Correct Answer
    A. Overheating marks.
    Explanation
    When bearings are subjected to overheating, it can cause discoloration or marks on the races. These marks are a result of excessive heat and can indicate potential damage or wear on the bearing. Therefore, installed bearing races should be free of overheating marks to ensure their proper functioning and longevity.

    Rate this question:

  • 21. 

    When securing widely spaced bolts by the double-twist safetying method, what is the maximum number of bolts that may be wired in series?

    • 3.

    • 4.

    • 5.

    • 6.

    Correct Answer
    A. 3.
    Explanation
    When securing bolts by the double-twist safetying method, the maximum number of bolts that may be wired in series is 3. This means that you can connect up to 3 bolts together using wire to secure them. Wiring more than 3 bolts in series may compromise the effectiveness of the safetying method and increase the risk of bolts coming loose. Therefore, it is recommended to wire a maximum of 3 bolts in series to ensure proper security.

    Rate this question:

  • 22. 

    What torque wrench indicates the amount of torque or twisting action being applied?

    • Indicating type.

    • Breakaway type.

    • Screwdriver type.

    • Internal wrenching type.

    Correct Answer
    A. Indicating type.
    Explanation
    An indicating type torque wrench is designed to show the amount of torque or twisting action being applied. This type of wrench typically has a gauge or display that provides a visual indication of the torque being applied, allowing the user to accurately measure and control the amount of torque being used. This is useful in applications where precise torque is required to ensure proper fastening or assembly.

    Rate this question:

  • 23. 

    Which medical concept forms the basis of ABDR assessment philosophy?

    • "EMERGENCY".

    • "DIAGNOSE".

    • "TRIAGE".

    • "STAT".

    Correct Answer
    A. "TRIAGE".
    Explanation
    Triage is the process of determining the priority of patients' treatments based on the severity of their condition. It is a fundamental concept in emergency medicine and forms the basis of the ABDR (Assessment, Brief Intervention, and Referral to Treatment) assessment philosophy. Triage helps healthcare professionals allocate limited resources effectively and efficiently, ensuring that the most critical patients receive immediate attention.

    Rate this question:

  • 24. 

    Aircraft wheels are normally constructed of

    • Steel and/or titanium alloys.

    • Chromium and/or titanium alloys.

    • Palladium and/or aluminum alloys.

    • Magnesium and/or aluminum alloys.

    Correct Answer
    A. Magnesium and/or aluminum alloys.
    Explanation
    Aircraft wheels are typically made of magnesium and/or aluminum alloys. These materials are chosen for their lightweight properties, which help reduce the overall weight of the aircraft and improve fuel efficiency. Magnesium alloys offer high strength-to-weight ratio, while aluminum alloys provide good corrosion resistance. The combination of these two alloys allows for a strong and durable wheel that can withstand the stresses and forces experienced during takeoff, landing, and taxiing.

    Rate this question:

  • 25. 

    Split wheels are balanced

    • During buildup.

    • As an assembly.

    • Individually by halves.

    • By a self-balancing system.

    Correct Answer
    A. Individually by halves.
    Explanation
    The correct answer is "individually by halves." This means that each wheel is balanced separately, with each half of the wheel being balanced individually. This is done to ensure that each wheel is properly balanced and does not cause any vibrations or uneven wear on the tires. By balancing the wheels individually by halves, any imbalances in weight or distribution can be corrected, resulting in a smoother and safer ride.

    Rate this question:

  • 26. 

    Air and gases flowing through a jet engine require

    • Low velocity at all times.

    • Less velocity exiting than entering.

    • Equal velocity entering and exiting.

    • Greater velocity exiting than entering.

    Correct Answer
    A. Greater velocity exiting than entering.
    Explanation
    In a jet engine, the air and gases need to exit the engine at a greater velocity than they entered in order to generate thrust. This is achieved through the process of combustion and expansion, where the fuel is burned and the resulting hot gases are accelerated and expelled at high speed. This high velocity of the exhaust gases creates a reaction force in the opposite direction, propelling the aircraft forward. Therefore, the correct answer is that the velocity exiting the engine is greater than the velocity entering.

    Rate this question:

  • 27. 

    After air is drawn into the guide vanes of a centrifugal jet engine compressor, it is subjected to

    • Radial and tangential forces.

    • Rotational and tangential forces.

    • Rotational and centrifugal forces.

    • Tangential and centrifugal forces.

    Correct Answer
    A. Rotational and centrifugal forces.
  • 28. 

    The purpose of a fuel/oil cooler in a fuel system is to

    • Heat the fuel and cool the oil.

    • Cool the fuel and cool the oil.

    • Heat the fuel and heat the oil.

    • Cool the fuel and heat the oil.

    Correct Answer
    A. Heat the fuel and cool the oil.
    Explanation
    The purpose of a fuel/oil cooler in a fuel system is to heat the fuel and cool the oil. This is important because fuel needs to be at a certain temperature in order to efficiently combust and provide power to the engine. By heating the fuel, it ensures that it is at the optimal temperature for combustion. On the other hand, cooling the oil is necessary to prevent it from overheating and losing its lubricating properties. This helps to maintain the overall performance and longevity of the engine.

    Rate this question:

  • 29. 

    In the cannon plug code MS3106F-12_10PW, the letter P indicates

    • Pin.

    • Plain.

    • Primary.

    • Pratt and Whitney.

    Correct Answer
    A. Pin.
    Explanation
    In the cannon plug code MS3106F-12_10PW, the letter P indicates "pin". The letter P is commonly used in electrical connectors to denote the pin configuration. In this case, it suggests that the connector has pins for electrical connections.

    Rate this question:

  • 30. 

    When the H symbol is shown on the Fluke multimeter display, the

    • Manual range mode is indicated.

    • Touch-hold mode is in use.

    • Ohms function is selected.

    • Meter is zeroing itself.

    Correct Answer
    A. Touch-hold mode is in use.
    Explanation
    The H symbol on the Fluke multimeter display indicates that the touch-hold mode is in use. In this mode, the meter "freezes" the measurement value on the display until it is manually reset. This can be useful when taking measurements in difficult or dangerous conditions where it may be challenging to read the display in real-time.

    Rate this question:

  • 31. 

    All items that come through supply channels are assigned what type of code?

    • PDC.

    • AAC.

    • PACC.

    • ERRC.

    Correct Answer
    A. ERRC.
  • 32. 

    Which inspection is usually performed just prior to takeoff and may include operational checks of systems?

    • In progress.

    • PR.

    • TH.

    • EOR.

    Correct Answer
    A. EOR.
    Explanation
    The correct answer is EOR. EOR stands for Engine-Off Run-up, which is an inspection usually performed just prior to takeoff. During this inspection, the engine is shut down and then restarted to check the operational systems such as the fuel, electrical, and hydraulic systems. This inspection ensures that all systems are functioning properly before the aircraft takes off.

    Rate this question:

  • 33. 

    The purpose of the torsion links on a main landing gear is to

    • Reduce oscillation during extension.

    • Reduce oscillation during retraction.

    • Allow the inner cylinder to rotate within the outer cylinder.

    • Prevent the inner cylinder from rotating within the outer cylinder.

    Correct Answer
    A. Prevent the inner cylinder from rotating within the outer cylinder.
    Explanation
    The purpose of the torsion links on a main landing gear is to prevent the inner cylinder from rotating within the outer cylinder. Torsion links are designed to provide structural support and limit rotational movement between the inner and outer cylinders of the landing gear. This prevents any unwanted rotation or twisting motion during the extension or retraction of the landing gear, ensuring the stability and proper functioning of the aircraft's landing gear system.

    Rate this question:

  • 34. 

    For tires 24 inches or greater outside diameter, the tire must be removed when wear reaches the bottom of any tread groove for a continuous length of

    • 4 inches.

    • 6 inches.

    • 12 inches.

    • 16 inches.

    Correct Answer
    A. 12 inches.
    Explanation
    When the tires have a diameter of 24 inches or more, it is necessary to remove them once the wear reaches the bottom of any tread groove for a continuous length of 12 inches. This means that if the tread groove has worn down to the bottom for a distance of 12 inches, the tire must be replaced.

    Rate this question:

  • 35. 

    Fuel that accumulates after a failed start or engine shutdown is

    • Drained overboard by a drain system.

    • Returned to the fuel control tubes.

    • Burned on the next start attempt.

    • Allowed to evaporate.

    Correct Answer
    A. Drained overboard by a drain system.
    Explanation
    After a failed start or engine shutdown, the fuel that accumulates needs to be removed from the system. This is done by draining it overboard using a drain system. This ensures that the excess fuel does not remain in the engine or fuel control tubes, which could cause issues during the next start attempt. Burning the fuel on the next start attempt or allowing it to evaporate would not be efficient or safe methods of removing the excess fuel.

    Rate this question:

  • 36. 

    What is the purpose of the exhaust duct?

    • Swirl exhaust gas-flow.

    • Equalize exhaust gas-flow.

    • Modulate exhaust gas-flow.

    • Straighten exhaust gas-flow.

    Correct Answer
    A. Straighten exhaust gas-flow.
    Explanation
    The purpose of the exhaust duct is to straighten the flow of exhaust gas. This is important because exhaust gas often exits the system in a turbulent manner, and straightening the flow helps to reduce turbulence and improve the efficiency of the exhaust system. Straightening the flow also helps to minimize pressure drop and improve the overall performance of the system.

    Rate this question:

  • 37. 

    What do you use to create a static seal between two stationary parts in the oil system?

    • Wadding.

    • Packing.

    • Gasket.

    • Filler.

    Correct Answer
    A. Gasket.
    Explanation
    A gasket is used to create a static seal between two stationary parts in the oil system. It is a mechanical seal made of a compressible material, such as rubber or metal, that fills the gap between the two parts, preventing any leakage of oil or fluid. Gaskets are commonly used in engines, pumps, and other machinery where a reliable seal is required to maintain the integrity of the oil system.

    Rate this question:

  • 38. 

    Use the range button on the Fluke multimeter to

    • Check the AC voltages only.

    • Check the DC voltages only.

    • Initiate the tough-hold mode.

    • Move the decimal point.

    Correct Answer
    A. Move the decimal point.
    Explanation
    The range button on the Fluke multimeter is used to adjust the measurement range of the meter. By pressing the range button, the user can change the scale of the display, which can include moving the decimal point. This allows for more accurate readings of different voltage levels, as the user can select the appropriate range to match the voltage being measured. Therefore, the correct answer is to move the decimal point.

    Rate this question:

  • 39. 

    A push-pull rod end engagement is checked by

    • Using a depth gage to check end play.

    • Ensuring that no lateral movement exists.

    • Using an inside caliper to check the rod end bearing.

    • Inserting safety wire in the hole in the end of the terminal.

    Correct Answer
    A. Inserting safety wire in the hole in the end of the terminal.
  • 40. 

    What is the longest possible movement between the micrometer's spindle and anvil?

    • 0.5 inch.

    • 1.0 inch.

    • 1.5 inch.

    • 2.0 inch.

    Correct Answer
    A. 1.0 inch.
    Explanation
    The longest possible movement between the micrometer's spindle and anvil is 1.0 inch. This means that the micrometer can measure objects with a maximum thickness or length of 1.0 inch.

    Rate this question:

  • 41. 

    A unit that is a combination of the landing gear shimmy damper and steering unit is known as

    • A steer damper.

    • An uplock control.

    • A downlock control.

    • A servo oscillating damper.

    Correct Answer
    A. A steer damper.
    Explanation
    A unit that combines the landing gear shimmy damper and steering unit is known as a steer damper. This device helps to reduce shimmy vibrations and provides steering control for the landing gear. It is designed to stabilize the landing gear and prevent excessive oscillations during taxiing and landing. The term "steer damper" accurately describes the function and purpose of this unit.

    Rate this question:

  • 42. 

    What type of bearings are used on aircraft wheels?

    • Flat roller.

    • Straight ball.

    • Tapered roller.

    • Recessed cone.

    Correct Answer
    A. Tapered roller.
    Explanation
    Tapered roller bearings are used on aircraft wheels because they can handle both radial and axial loads. They have a conical shape, with the inner and outer races tapered towards each other. This design allows for better distribution of the load, reducing friction and increasing the bearing's ability to support heavy loads. Tapered roller bearings also provide stability and smooth operation, making them ideal for use on aircraft wheels that experience high speeds and heavy loads during takeoff and landing.

    Rate this question:

  • 43. 

    What type of fuel control uses thermocouples, relays, amplifiers, and solenoids, to help control the engine?

    • Pneumatic.

    • Fuel injection.

    • Hydromechanical.

    • Electrohydromechanical.

    Correct Answer
    A. Electrohydromechanical.
    Explanation
    Electrohydromechanical fuel control uses a combination of thermocouples, relays, amplifiers, and solenoids to help control the engine. This type of system utilizes electrical signals to regulate the flow of fuel, ensuring optimal performance and efficiency. The thermocouples measure the temperature and provide feedback, which is then processed by the relays and amplifiers to activate the solenoids. These solenoids control the flow of fuel, adjusting it based on the engine's requirements. Therefore, electrohydromechanical fuel control is the correct answer for this question.

    Rate this question:

  • 44. 

    What indicates lubricant system contamination by dirt and sand?

    • A decrease in carbon.

    • A increase in silicon.

    • A decrease in graphite.

    • An increase in synthetic oils.

    Correct Answer
    A. A increase in silicon.
    Explanation
    An increase in silicon indicates lubricant system contamination by dirt and sand. Silicon is commonly found in dirt and sand particles, so an increase in silicon levels in the lubricant suggests that dirt and sand have entered the system and contaminated the lubricant.

    Rate this question:

  • 45. 

    Which caliper has the words "IN" and "OUT" stamped on the frame?

    • Slide caliper.

    • Simple caliper.

    • Transfer caliper.

    • Spring-joint caliper.

    Correct Answer
    A. Slide caliper.
    Explanation
    The slide caliper is the correct answer because it is the type of caliper that has the words "IN" and "OUT" stamped on the frame. The "IN" and "OUT" markings on the slide caliper indicate the direction in which the sliding jaw moves to measure the inside and outside dimensions of an object.

    Rate this question:

  • 46. 

    Bench stock levels are established to provide a

    • 15-day usage.

    • 30-day usage.

    • 60-day usage.

    • 90-day usage.

    Correct Answer
    A. 30-day usage.
    Explanation
    Bench stock levels are established to provide a 30-day usage. This means that the stock is maintained at a level that can cover the average demand for a period of 30 days. By having enough stock for 30 days, a company can ensure that they have an adequate supply of materials or products to meet their needs without experiencing shortages or delays. This level of stock is considered a balance between having enough inventory to meet demand and minimizing excess inventory costs.

    Rate this question:

  • 47. 

    Within maintenance the internal control of reparable items is accomplished through the DIFM notice and

    • DD Form 1348-6.

    • AFTO Form 349.

    • AFTO Form 350.

    • DD Form 1131.

    Correct Answer
    A. AFTO Form 350.
  • 48. 

    The three benefits of of the Joint Oil Analysis Program (JOAP) are improved safety, reduced maintenance cost, and

    • Recycling of used oil.

    • Production of wear metals.

    • Increased equipment availability.

    • Increased length of time between oil changes.

    Correct Answer
    A. Increased equipment availability.
    Explanation
    The Joint Oil Analysis Program (JOAP) provides three benefits: improved safety, reduced maintenance cost, and increased equipment availability. While the other options may also have some benefits, increased equipment availability is a direct result of the JOAP. By analyzing oil samples regularly, potential equipment failures can be detected early, allowing for timely maintenance and repairs. This minimizes downtime and ensures that equipment is available and operational when needed, thereby increasing equipment availability.

    Rate this question:

  • 49. 

    After treatment which solution is used to neutralize areas affected with electrolyte from a lead-acid battery?

    • Potassium hydroxide.

    • Aluminum hydroxide.

    • Sodium bicarbonate.

    • Boric acid.

    Correct Answer
    A. Sodium bicarbonate.
    Explanation
    Sodium bicarbonate is used to neutralize areas affected with electrolyte from a lead-acid battery. This is because sodium bicarbonate is a mild alkaline substance that can effectively neutralize the acidic electrolyte. It helps to restore the pH balance and prevent further damage to the affected areas. Potassium hydroxide, aluminum hydroxide, and boric acid are not commonly used for neutralizing electrolyte from a lead-acid battery.

    Rate this question:

Quiz Review Timeline (Updated): Jun 17, 2024 +

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

  • Current Version
  • Jun 17, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 25, 2013
    Quiz Created by
    Bigdawg
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.