A.be clear
B.be blue
C.be light green
D.show bubbles
您可能感興趣的試卷
你可能感興趣的試題
A.temperature in the space being cooled
B.liquid refrigerant pressure at the solenoid valve
C.pressure drop across the evaporator coils
D.refrigerant gas superheat at the coil outlet
A.act as a pilot from the solenoid valve
B.regulate the amount of refrigerant flow to the coil
C.regulate the water flow
D.turn the compressor off and on
A.solenoid valve
B.low pressure cutout switch
C.king valve
D.thermal expansion valve
A.relieve excessive compressor head pressure
B.produce flash gas at the expansion valve
C.reduce flooding of the receiver at low load
D.defrost the evaporator coils
A.suction pressure only
B.head pressure only
C.superheat only
D.suction pressure and box temperature
最新試題
If separating effect is not good, which measure should be taken （）
The condensers located in various stages of a flash evaporator are cooled by（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Cold weather starting of a diesel engine may be made easier by（）
Which of the following items don’t belong to dock repair works?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
The shipboard oil pollution emergency plan will be invalid after （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）