The packing gland bolts and nuts:
A) should never be tightened during valve operation.
B) can be tightened during valve operation.
C) Should be lubricated periodically.
D) b & c
Correct Answer:
Verified
Q20: Ball valves can be fully opened or
Q21: Butterfly valves have _ throttling characteristics.
A) zero
B)
Q22: The stem on a gate valve comes
Q23: The only check valve that can be
Q24: A recessed area specially designed to receive
Q26: A butterfly valve can be used for:
A)
Q27: The typical globe valve directs flow:
A) under
Q28: Check valve design(s) include:
A) swing check
B) ball
Q29: A check valve responds to the following
Q30: Diaphragm valves are used primarily for:
A) corrosive
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