Name:
Date:
Gavilan College AMT 111
Hydraulic and Pneumatic Power Systems
Worksheet #2
Points: 25
1. What component is used to remove foreign particles?
2. How is a micron-type filter cleaned?
3. What is used to circumvent clogged filter?
4. What is used to tell a pilot that a filter is clogged?
5. Gear-type pumps are part of what classification of pumps?
6. What is used to prevent damage to a constant displacement drive unit?
7. What is used to direct the movement of actuators?
8. The most common selector valve is?
9. What is used to prevent fluid from flowing backwards?
10. What type of valve is used to prevent landing gear from falling too fast?
11. What enables on unit to automatically activate another unit?
12. What is used to isolate critical hydraulic subsystems?
13. What enables removal of hydraulic lines without losing fluid?
14. What is used to detect a sudden increase in fluid flow caused by a fault?
15. Relief valves limit
16.
are used to maintain the normal operating range of a
constant-displacement pump.
17. What hydraulic component dampens pressure surges and supplements the pump?
18.
convert hydraulic pressure to mechanical movement.
19. What type of actuator creates angular movement?
20. What is often used to provide backup hydraulic power?
21.
are used to seal stationary joints.
22. The open end, of a V-ring or U-ring packing, faces the (non-pressure or pressure) side.
23. Piston shafts are cleaned and lubricated with
24. Systems that use gases to transmit power are called?
25. Moisture separators are also called?
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