單項選擇題When starting a reciprocating pump, the inlet valve should be ().

A.closed
B.opened fully
C.cracked open
D.partly open


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題When starting a centrifugal pump, the discharge valve should be ().

A.closed
B.opened fully
C.cracked open
D.partly open

2.單項選擇題When start a screw pump, the by pass valve should be ().

A.closed
B.opened fully
C.cracked open
D.partly open

3.單項選擇題A centrifugal pump can’t supply water after startingYou should check ().

A.priming water
B.power supply
C.packing gland
D.bearing lubrication

4.單項選擇題Open the ()of inter cooler before starting an air compressor.

A.cylinder cover
B.cooling water
C.oil cup
D.drain valve

5.單項選擇題Open the ()before starting an air compressor.

A.unload valve
B.cooling water
C.oil cup
D.sump