A.oily water separator
B.sewage treatment plant
C.fuel oil separator
D.incinerator
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A.residual magnetism
B.voltage regulator
C.electrical current for excitation
D.the other running generator
A.the armature terminals of the motor should be connected in star formation when voltage of power supply is 380
B.the armature terminals of the motor should be connected in star formation when voltage of power supply is 220
C.both A and B are correct
D.the armature terminals of the motor should be connected in reverse ways of A and B
A.2
B.4
C.6
D.8
A.in such cases, the air supply is no longer optimal, the thermal load will be higher
B.governor hunting will occur
C.torsional vibrations as other mechanical vibrations may occur
D.all of the above are correct
A few spots of turbocharger can be caused by（）
①crash stop of engine
② rapid increased of engine speed
A.①only is correct
B.②only is correct
C.both ① and ②are correct
D.neither ① or ② correct
最新試題
The shipboard oil pollution emergency plan will be invalid after （）
The main purpose of port State control is not to（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Using a file without a handle may result in （）
Which of the following items don’t belong to dock repair works?（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
If separating effect is not good, which measure should be taken （）