A、A.the solenoid valve to seize
B、B.the compressor to hunt
C、C.flash gas to form in the liquid line
D、D.the expansion valve to freeze open
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A、pressure builds up in the nozzle which causes a surge of water B、the only opening in a passageway is the one from which the nozzle is being advanced C、pressure in the fire hose drops below 100 psi D、a bulkhead collapses due to heat and pressure
A、Cut in another IG fan to increase gas flow B、Open the pressure control valve until the pressure increases C、Open the tank isolation valve to the fully open position D、Reduce the pumping rate
A、protect the compressor from liquid flood back B、protect the compressor from low discharge pressure C、start and stop the compressor upon system demand D、start the compressor after a drop in the evaporator pressure
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
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