6.
What valve resembles a check valve in appearance and operation?
___ A. Selector valve.
___ B. Priority valve.
___ C. Sequence valve.
___ D. Ratchet valve.
7.
What is used to prevent leakage in the single-action actuating cylinder?
___ A. Polished bore.
___ B. Close-tolerance machining.
___ C. Wiper rings.
___ D. Seals.
8.
What holds the piston in the retracted position in a single-action actuating cylinder?
___ A. Fluid pressure.
___ B. Static pressure.
___ C. Spring pressure.
___ D. Return pressure.
9.
What is used with double-action cylinders to hold loads?
___ A. Relief valve.
___ B. Check valve.
___ C. Ratchet valve.
___ D. Selector valve.
10.
What permits limited flow in one direction and full flow in the other direction?
___ A. Sequence valve.
___ B. Selector valve.
___ C. Orifice check valve.
___ D. Priority valve.
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AL0926
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