A.aluminum plates
B.lead cathodes
C.copper baffle plates
D.sacrificial zincs
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A.bearing pressure in a four-stroke\cycle acting single diesel engine is continually reversed
B.bearing pressure in a two-stroke\cycle single acting diesel engine is continually reversed
C.the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine
D.two-stoke/cycle diesel engines require more complicated lubrication piping
A.Common-rail injection
B.Air injection
C.Jerk pump injection
D.Distribution injection
A.two position control
B.signal speed floating control
C.proportional speed floating control
D.reset control
A.two position control
B.signal speed floating control
C.proportional control
D.reset control
A.compressed air and nitrogen
B.helium and nitrogen
C.oxygen and hydrogen
D.oxygen and acetylene
最新試題
The shipboard oil pollution emergency plan will be invalid after （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
（） is not installed on the main switchboar.
Under MARPOL Code the ship to which it applies has to carry （）
To proceed to the assistance of a ship in distress is（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
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.
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.