单项选择题
The component of a refrigerating system in which the refrigerant vaporizes and absorbs heat is known as the （）.
A.condenser
B.vapor generator
C.accumulator
D.evaporator
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相关考题
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单项选择题
The low pressure side of a refrigeration system is considered to exist from the （）.
A.expansion valve to the compressor
B.receiver to the expansion coil
C.expansion valve to the evaporator
D.condenser to the expansion valve -
单项选择题
If the electric motor driving an air compressor fails to start, the cause may be a （）.
A.leaking unloader
B.tripped circuit breaker
C.control line leak
D.defective pop valve -
单项选择题
The refrigerant gas returning to the compressor should be （）.
A.superheated
B.saturated
C.dense
D.flooded
