LESSON 1
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
A.
The same RPM.
Both operate alike because they are connected. (Page 8)
2.
B.
2.
The two types of reservoirs are classified as vented and pressurized. (Page 2)
3.
D.
OV-l, AH-1G, and UH-1C.
All Army aircraft do not have the stationary-cam pump as an operating component. (Page
10)
4.
B.
Rotating-cam pump.
More Army aircraft use the rotating-cam pump than any type. (Page 9)
5.
D.
Close machining.
The piston and bore fit so closely that no other component is necessary to stop leakage.
(Page 8)
6.
C.
Piston pump.
The Army has selected the most efficient, longest-lasting hydraulic pump to be used on its
aircraft. (Page 7)
7.
A.
Stroke-reduction principle.
The length of the stroke can be controlled by angling the cylinder block. (Page 12)
8.
C.
Accumulator.
The accumulator can absorb increases in fluid volume to prevent damage to the system.
(Page 12)
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