單項(xiàng)選擇題
A.one size smaller than the pump suction nozzle B.the same size as the pump suction nozzle C.one size larger than the pump suction nozzle D.installed with a short radius elbow at the pump
A.first stage flash chamber B.second stage flash chamber C.first stage after condenser D.second stage distilling condenser
A.system is low on refrigerant B.high pressure cutout switch is improperly adjusted C.discharge valves are leaking slightly D.discharge valves are leaking excessively
A.leaky discharge valves on the LP cylinder B.leaky discharge valves on the HP cylinder C.insufficient intercooler cooling D.low ambient air pressure
A.one size larger than the pump discharge nozzle B.the same size as the pump discharge nozzle C.one size smaller than the pump discharge nozzle D.installed with a short radius elbow at the pump
A.purge the condenser if the waterside is dirty B.check for proper water flow through the condenser C.increase the high pressure cutout setting D.reduce the cooling water flow
A.Red B.White C.Blue D.Yellow
A.the flashing of the feed water B.the condensation of the saltwater feed C.air ejectors, eductors, or a separate vacuum pump D.condensation of the distillate
A.under heavy loads B.during hot gas defrost C.under light loads D.during starting conditions
A.Excessive compression in the cylinder B.A broken intake valve C.A dirty inlet filter element D.An improperly adjusted discharge valve
A.Constant tension mooring winch system B.Hatch cover system C.Watertight door system D.Internal combustion engine hydraulic starter system
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