A.voltage
B.current
C.power
D.frequency
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A.An alternator
B.fresh water generator
C.A compressor
D.A clarifier
A.Switches
B.panels
C.alarm units
D.safety devices
A.deteriorates
B.increases
C.are fouled
D.becomes better
A.varying the D-Cexciter voltage
B.varying the reluctance of the air gap
C.regulating the speed of prime mover
D.shorting out part of the armature windings
A.short circuit
B.speed up
C.slow down
D.hunting
最新試題
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As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
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The main purpose of port State control is not to（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Under MARPOL Code the ship to which it applies has to carry （）
Using a file without a handle may result in （）
The shipboard oil pollution emergency plan will be invalid after （）