What happens in a reciprocating compressor when the piston reaches its lowest point?
a. Discharge valve opens
b. Suction valve closes
c. Refrigerant leaves the cylinder
d. Refrigerant begins to enter the cylinder
b
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Unsprung weight is the total weight of a machine not supported by the suspension.
Answer the following statement true (T) or false (F)
In replacing the old analog equipment with new high-speed digital equipment and transforming the outside plant into a high-speed, digital fiber-optic network, the only portion of the network that was not touched was the:
A) subscriber drop B) head-end office C) trunking cable D) feeder cable
In the English Equitation event, the horse and rider are judged on performance.
Answer the following statement true (T) or false (F)
Which of the following is NOT an advantage of a Mercedes-Benz constant throttle valve (CVT) type engine brake?
A. quieter operation B. braking on both piston upstrokes C. no camshaft loading during braking D. braking cycles through entire rpm range