When starting a reciprocating pump, the inlet valve should be （）.
A、closed
B、opened fully
C、cracked open
D、partly open
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When starting a reciprocating pump, the inlet valve should be （）.
A、closed
B、opened fully
C、cracked open
D、partly open
As its temperature rises, the volume of fuel oil in the tanks will （）.
A、remain the same
B、increase
C、decrease
D、none of the above
Which of the files listed is tapered on three sides and is used to file acute internal angles?（）
A、Mill
B、Round
C、Square
D、Triangular
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
A、absence of engine log book
B、serious corrosion on the hull
C、one page missing in the oil record book
D、paint peeling off some tailings in engine rooms
The design of for a flash type evaporator is of critical importance because it must provide an optimum feedwater spray pattern that facilitates the flashing process, and it must also maintain a pressure differential between successive stages（）
A、condenser
B、flashing device
C、lashing device
D、vacuum pump
I find （）
A、it difficult for them to finish the job in time
B、difficult for them to finish the job in time
C、they have much difficulty to finish the job in time
D、that difficult for them to finish the job in time
