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单选题
Air that may enter a refrigeration plant tends to collect in the （）.
A
upper part of the receiver
B
upper part of the condenser
C
down stream end of the cooling coil
D
outlet end of the condenser
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You should enter fairwayC
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考题
单选题Which of the following may cause that excessively warm water leaves the condenser in a refrigeration plant? （） (1) too little cooling water (2) too much cooling water (3) too warm cooler waterA
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考题
单选题The air is （）. Don’t enter that area.A
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