When starting a reciprocating pump, th

1、When start a screw pump, the by pass v

When start a screw pump, the by pass valve should be （）.AclosedBopened fullyCcracked openDpartly ope

2、A hot air start pipe indicates that th

A hot air start pipe indicates that there is （）.Ainefficient coolingBa leaking air start valveCa clogged drain valveDa leaking air bottle

3、When Word is started it creates a new

When Word is started it creates a new blank(75).AdocumentBprocessCtextDblock

4、When starting CPR on a drowning victim

When starting CPR on a drowning victim，you should（）.Astart chest compressions before the victim is removed from the waterBdrain water from the...

5、Before starting a reciprocating, steam

Before starting a reciprocating, steam-driven pump that has been idle for a period of time, you should （）.Aopen the steam line mot valveBdrain the steam cylinderCclose the steam cylinder drainsDopen the liquid cylinder drai

6、When a hydraulic vane pump is working

When a hydraulic vane pump is working, which of the following is in contact with the vanes?（）(1) the rotor(2) the internal surface of the housing(3) the external surface of the housingA(1) onlyB(2) onlyC(1) and (2)D(1), (2) and (3)