A.collect all available data on a casualty
B.recognize normal operation
C.identify the probable cause of a symptom
D.isolate the faulty component
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A.magnetic amplifier
B.ship’s service alternator
C.three-wire DC generator
D.saturable core reactor
A.draw a one line diagram of the circuitry
B.test all fuses and measure the line voltage
C.take megger readings
D.insulate the apparatus from ground
A.melts and must be replaced
B.is enclosed in a tube of insulating material with metal ferrules at each end
C.gives no visual indication of having opened the circuit
D.trips to break the circuit and may be reset
A.brushes on a commutator
B.brushes on slip rings
C.slip rings on a commutator
D.direct connections from the stator
A.heat-resisting acrylic
B.heat-resisting aluminum
C.insulating varnish
D.insulating white lead
最新試題
Under MARPOL Code the ship to which it applies has to carry （）
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.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Cold weather starting of a diesel engine may be made easier by（）
The cetane rating of diesel fuel is an indication of the （）
The condensers located in various stages of a flash evaporator are cooled by（）
Diesel engine air start system check valves are opened by （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）