A、open the steam line mot valve
B、drain the steam cylinder
C、close the steam cylinder drains
D、open the liquid cylinder drains
更多“Before starting a reciprocating, steam-driven pump that has been idle for a period of time, you should （）.”相关的问题
A、After operation, start the electric motor. B、Before operation, stop the electric motor. C、Before operation, start the electric motor. D、After operation, stop the electric motor.
A、start chest compressions before the victim is removed from the water B、drain water from the lungs before ventilating C、begin mouth-to-mouth ventilations as soon as possible D、do not tilt the head back since it may cause vomiting
A、start chest compressions before the victim is removed from the water B、drain water from the lungs before ventilating C、begin mouth-to-mouth ventilations as soon as possible D、do not tilt the head back since it may cause vomiting
A、Start ventilation，lower the ramp，notify engine room B、Lower the ramp，start ventilation，notify engine room C、Notify engine room，lower the ramp，start ventilation D、Start ventilation，notify engine room，lower the ramp
A、keep ports，doors，windows，and hatches closed B、start engines immediately C、ventilate before starting engine D、None of the above
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