单项选择题
In terms of pressure and temperature in the refrigerant in the compressor, what happens to the primary?（）
A.its pressure and temperature are both lowered
B.its pressure and temperature are both raised
C.its pressure is lowered and its temperature is raised
D.its pressure is raised and its temperature is lowered
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相关考题
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单项选择题
The solenoid valve can be typed as a（）
A.thermal valve
B.magnetic stop valve
C.bellows valve
D.bimetallic valve -
单项选择题
If the compressor runs continually, the cause might be the（）
A.high-pressure cutout switch is jammed open
B.low-pressure switch is jammed shut
C.thermal bulb is not operating properly
D.scale trap is clogged -
单项选择题
The bulb for the thermal expansion valve is located（）
A.in the middle of evaporator coils
B.near the evaporator coil outlet
C.near the evaporator coil inlet
D.on the bottom row of evaporator coils
