单项选择题X 纠错

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

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A.king valve and the expansion valve
B.solenoid valve and expansion valve
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D.compressor and evaporator

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A.discharge side of condenser
B.discharge side of compressor
C.outlet of the evaporator
D.receiver tank

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A.increase the amount of cooling water to the condenser
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C.add more refrigerant to the system
D.remove some of the refrigerant from the system

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A.the relief valve should open before the high-pressure cutout
B.the relief valve should open and let excess refrigerant go to receiver
C.the high-pressure cutout switch should operate before the relief valve opens
D.close in on the suction valve

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