In a water-cooled condenser, what do an increase in head pressure and an increase in temperature difference across the condenser indicate?
A) Fouled condenser B) Low water flow C) Biological fouling D) Scaling on tubing
B
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The refrigerant enters the evaporator as a ________.
A) High-pressure gas B) Low-pressure mist C) Low-pressure liquid D) High-pressure liquid
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What is used to define camshaft endplay?
A. captured thrust springs B. free thrust washers C. either free or captured thrust washers D. nothing
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Energy source that can be replenished is called:
A) Non-renewable energy sources. B) Refillable energy sources. C) Perpetual energy resources. D) Renewable energy sources.
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To calculate uninsured costs, accidents are divided into four classes; class 1 accidents consist of