單項(xiàng)選擇題

If a compressor runs continuously, the cause might be a（）

A.defective thermal bulb
B.clogged scale trap
C.stuck high-pressure switch
D.stuck low-pressure switch

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單項(xiàng)選擇題

Which of the following would not cause high suction pressure?（）

A.insufficient refrigeration
B.leaky suction valves
C.expansion valve stuck open
D.suction valve not adjusted properly

單項(xiàng)選擇題

If the high-pressure switch on the compressor opens and stops the compressor a possible cause could be:（）

A.too much cooling water going through the condenser
B.not enough refrigerant in the system
C.a leak in the evaporator coils
D.no enough cooling water going through the condenser

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If a compressor runs continuously, the cause might be a（）

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Which of the following would not cause high suction pressure?（）

If the high-pressure switch on the compressor opens and stops the compressor a possible cause could be:（）