單項(xiàng)選擇題

The scale trap is located between the （）

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

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單項(xiàng)選擇題

The relief valve is located on the（）

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

單項(xiàng)選擇題

If the compressor-discharge temperature is higher than the receiver temperature（）

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

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