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Hydraulic and Pneumatic Power Systems - 114 WRITTEN TEST QUESTIONS AND CORRECT ANSWERS $8.49
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Hydraulic and Pneumatic Power Systems - 114 WRITTEN TEST QUESTIONS AND CORRECT ANSWERS
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  • Hydraulic and Pneumatic Power Systems
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  • Hydraulic And Pneumatic Power Systems

To protect packing rings or seals from damage when it is necessary to install them over or inside threaded sections, the.....? - ️️Threaded section should be covered with a suitable sleeve. Which of the following is adversely affected by atmospheric humidity if left unprotected? 1. MIL-H-56...

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Document information

  • June 11, 2024
  • 13
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • hydraulic and pneumatic power systems

Written for

  • Hydraulic and Pneumatic Power Systems
  • Hydraulic and Pneumatic Power Systems

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jackline98

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Hydraulic and Pneumatic Power
Systems - WRITTEN TEST QUESTION

To protect packing rings or seals from damage when it is necessary to install them over or inside
threaded sections, the.....? - ✔ ✔ Threaded section should be covered with a suitable sleeve.

Which of the following is adverse ly affected by atmospheric humidity if left unprotected?
1. MIL -H-5606 hydraulic fluid.
2. Skydrol hydraulic fluid.
3. None of the above. - ✔ ✔ 2 (phosphate ester -base)

Most variable displacement aircraft hydraulic pumps in use.....? - ✔ ✔ contain a built -in means of
system pressure regulation.

The component in the hydraulic system that is used to direct the flow of fluid is the.....? - ✔ ✔
Selector valve.

Which is a characteristic of petroleum base hydraulic fluid? - ✔ ✔ Flammable under normal
condition s.

Which allows free fluid flow in one direction and no fluid flow in the other direction? - ✔ ✔ Check
valve.

To prevent external and internal leakage in aircraft hydraulic units, the most commonly used type of seal
is the.....? - ✔ ✔ O-ring Seal.

Components containing phosphate ester -base hydraulic fluid may be cleaned with.....? - ✔ ✔
Stoddard Solvent.
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After a hydraulic accumulator has been installed and air chamber charged, the main system hydraulic
pressure gauge will not show a hydraulic press ure reading until.....? - ✔ ✔ The fluid side of the
accumulator has been charged.

If two actuating cylinders which have the same cross -sectional area but different lengths of stroke are
connected to the same source of hydraulic pressure, they will exert.. ...? - ✔ ✔ Equal amounts of
force and will move at the same rate of speed.

How is the air in a hydraulic accumulator prevented from entering the fluid system? - ✔ ✔ By
physically separating the air chamber from the oil chamber with a flexible or movable s eparator.

The purpose of restrictors in hydraulic systems is to.....? - ✔ ✔ Control the rate of movement of
hydraulic operated mechanisms.

Quick -disconnect couplings in hydraulic systems provide a means of.....? - ✔ ✔ Quickly connecting
and disconnection hydraulic lines without loss of fluid or entrance of air into the system.

The main system pressure relief valve in a simple hydraulic system equipped with a power control valve
should be adjusted.....? - ✔ ✔ with the power control valve held in the CLOSE D position.

Relief valves are used in pneumatic systems.....? - ✔ ✔ As damage -preventing units.

A loud hammering noise in a hydraulic system having an accumulator usually indicates.....? - ✔ ✔
Too low or no pre -load in the accumulator.

What type of pack ings should be used in hydraulic components to be installed in a system containing
Skydrol? - ✔ ✔ Packing materials made for ester -base fluids.
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