Name:
Date:
Gavilan College AMT 111
Hydraulic and Pneumatic Power Systems
Worksheet #1
Points: 26
1. In a pressurized fluid system where the fluid is free to move about, the pressure is equal
throughout the system. This is defined by
2.
Internal resistance to fluid flow is
3.
is a liquid’s ability to resist oxidation and deterioration.
4. The temperature at which a liquid vaporizes enough to continuously burn is call the
.
5. The temperature at which a liquid vaporizes enough to flash combust is the
6. A mineral based hydraulic fluid made from petroleum and dyed red is
7. What fluid property prevents MIL-H-83282 replacing MIL-H-5606 in all applications?
8. The most common hydraulic fluid used in commercial transport aircraft is?
For the following questions, list the appropriate hydraulic fluid.
9. Synthetic rubber:
10. Butyl rubber:
11. Nylon:
12. Buna-N:
13. Polyester:
14. Neoprene:
15. Large particles in a hydraulic system are signs of what?
16. Before disconnecting a hydraulic line, you should do what?
17. What happens to skin when Skydrol is applied?
18. Open center hydraulic systems (are or aren’t) pressurized when actuators are idle.
19. Closed center hydraulic systems (are or aren’t) pressurized when actuators are idle.
20. Self-contained hydraulic systems are called?
21. What hydraulic component stores the fluid supply?
22. The main hydraulic pump is connected to the (bottom of the reservoir or standpipe).
23. The emergency hydraulic pump is connected to the (bottom of the reservoir or standpipe).
24. Air is purged from hydraulic system in what component?
25. Vortexing is prevented by?
26. Pressurized reservoirs are used in (high or low) altitude aircraft.
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