A.open
B.close
C.drain
D.vent
您可能感興趣的試卷
你可能感興趣的試題
A.discovered
B.had discovered
C.invented
D.had invented
A.because
B.thanks to
C.dues to
D.owing to
A.because
B.since
C.due to
D.owing to
A.when
B.how
C.where
D.whether
A.slow-speed diesel
B.medium-speed diesel
C.high-speed diesel
D.constant-speed diesel
最新試題
The cetane rating of diesel fuel is an indication of the （）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
The treatment of the fuel oils involves storage, heating, filtering and（）
Which of the following items don’t belong to dock repair works?（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Diesel engine air start system check valves are opened by （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）