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单选题
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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单选题If a refrigeration compressor were short cycling on the low pressure cutout switch, the probable cause for this might be the （）.A
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单选题If the compressor runs continually, the cause might be the（）A
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考题
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考题
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考题
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考题
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