When setting up a nitrogen cylinder to pressurize a system for leak detection, the relief valve between the
nitrogen regulator and gauge manifold should be set no higher than _____.
A) 75 psig
B) 150 psig
C) 200 psig
D) 250 psig
Answer: B
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Which of the following protect the motor and control devices against overheating?
a. Solid-state overload relays b. Solid-state relays c. Timing relays d. Thyristors
Most torque sticks (sockets) will not work correctly unless the impact wrench can produce at least ______ foot-pounds of torque.
A. 50 B. 200 C. 100 D. 250
Two voltages (
and 
) are applied to a resister. 
is 40 volts at 
reference.
src="https://sciemce.com/media/4/ppg__examview__image9__00001_res__nr010-5.jpg" border="0"> is 60 volts and leads 
by 
. Find 
to the nearer tenth.
Fill in the blank(s) with the appropriate word(s).
Which is the best description of a watt?
A. The amount of power consumed when a one-volt dc power source causes a current of one amp to flow in a circuit. B. The amount of power consumed when a one-volt ac power source causes a current of one amp to flow in a circuit. C. The amount of voltage consumed when a one-volt dc source causes a resistance of one ohm in a circuit. D. The amount of current consumed when a one-volt ac source causes a current of one amp to flow in a circuit.