A.a line
B.a circle
C.a helix
D.an epllicate
您可能感興趣的試卷
你可能感興趣的試題
A.dependent
B.in dependent
C.in series
D.in parallel
A.one-third
B.two-thirds
C.one-fourth
D.two-fourths
A.Classification Society Rules
B.National requirements
C.The IMO International Convention for the Safety of Life at Sea
D.All of the above
A.low pressure at all times
B.full pressure at all times
C.low pressure at intermittence
D.full pressure at intermittence
A.an auxiliary reservoir
B.a controlling air bottle
C.an emergency air compressor
D.a main air compressor
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Cold weather starting of a diesel engine may be made easier by（）
The main purpose of port State control is not to（）
The condensers located in various stages of a flash evaporator are cooled by（）
The treatment of the fuel oils involves storage, heating, filtering and（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
（） is not installed on the main switchboar.
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
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.