Hydraulic Principles



1.	Which of the following statements is true of transmission gears or rotors?
	A.	They are often directional.
	B.	Their teeth are often offset.
	C.	If installed upside down, the pump may be damaged.
	D.	All of the above.

2.	Which of the following techniques can ensure pump rotors are installed correctly?
	A.	Scribing marks into the pump parts.
	B.	Using a felt-tip pen to mark rotors or gears.
	C.	Labeling pump parts with duct or masking tape.
	D.	All of the above.

3.	Which of the following precautions should be taken when conducting a main line pressure test?
	A.	Engage parking brake fully.
	B.	Depress service brake firmly.
	C.	Conduct the test outdoors in an open area.
	D.	All of the above.

4.	Valve edges are:
	A.	Dull.
	B.	Sharp.
	C.	Concave.
	D.	Convex.

5.	Which of the following should be used to remove a valve from the valve body, pump, or case?
	A.	Steel pick.
	B.	Screwdriver.
	C.	Nonmetallic tools.
	D.	None of the above.

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