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Aviation Mechanic - Airframe
test bank contains questions pertaining to
Hydraulic and Pneumatic Systems
. The following list contains only a relatively small percentage of the pertinent
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Aviation Mechanic - Airframe
test bank.
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| Sample Questions
from the FAA
Aviation Mechanic - Airframe
Test Bank |
- Select the valve used in a hydraulic system that directs pressurized fluid to one end of an actuating cylinder and simultaneously directs return fluid to the reservoir from the other end.
- What type of packings should be used in hydraulic components to be installed in a system containing Skydrol?
- Pneumatic systems utilize
- The purpose of the pressure regulator in a hydraulic system is to
- The installation of a new metal hydraulic line should be made with
-
(Refer to figure 11.)
Which fitting is an AN flared tube fitting?
- What is the viscosity of hydraulic fluid?
- Which of the following is adversely affected by atmospheric humidity if left unprotected?
1. MIL-H-5606 hydraulic fluid.
2. Skydrol hydraulic fluid.
3. None of the above.
- Which of the following lists only desirable properties of a good hydraulic fluid?
- Characteristics of MIL-H-7644 hydraulic fluid are
- How can the proper hydraulic fluid to be used in an airplane be determined?
- The primary purpose of a hydraulic actuating unit is to transform
- If an aircraft's constant pressure hydraulic system cycles more frequently than usual and no fluid leakage can be detected, the most probable cause is
- Excluding lines, which components are required to make up a simple hydraulic system?
- Pressure is a term used to indicate the force per unit area. Pressure is usually expressed in
- Which is true regarding the ground check of a flap operating mechanism which has just been installed?
- The purpose of a hydraulic pressure regulator is to
- A hydraulic accumulator is charged with an air preload of 1,000 PSI. When a hydraulic system pressure of 3,000 PSI is developed, the pressure on the air side of the accumulator will be
- Which seals are used with vegetable base hydraulic fluids?
- A worn hydraulic pump shaft seal can normally be detected by
- Hydraulic system accumulators serve which of the following functions?
1. Dampen pressure surges.
2. Supplement the system pump when demand is beyond the pump's capacity.
3. Store power for limited operation of components if the pump is not operating.
4. Ensure a continuous supply of fluid to the pump.
- A hydraulic pump is a constant-displacement type if it
- A pilot reports that when the hydraulic pump is running, the pressure is normal. However, when the pump is stopped, no hydraulic pressure is available. This is an indication of a
- One of the main advantages of Skydrol is it's
- How would the air pressure charge in the accumulator be determined if the engine is inoperative, but the system still has hydraulic pressure?
- If hydraulic fluid is released when the air valve core of the accumulator is depressed, it is evidence of
- A common cause of slow actuation of hydraulic components is
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