A.be clear
B.be blue
C.be light green
D.show bubbles
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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
The shipboard oil pollution emergency plan will be invalid after （）
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Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The main purpose of port State control is not to（）
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The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
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（） is not installed on the main switchboar.