A.The rams work inside cylinders
B.The cylinders have glands sealing their open ends
C.The rams are connected to a cross-head
D.The cross-head is mounted on the rudder stock
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A.an exciter driven by the same shaft with the generator
B.an exciter driven by external prime mover
C.generator itself
D.either A and B
A.oily water separator
B.sewage treatment plant
C.fuel oil separator
D.incinerator
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
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