A.visual inspection for dirt accumulation
B.high megger readings
C.low operating temperature
D.the time period since the last cleaning
您可能感興趣的試卷
你可能感興趣的試題
A.capacitive circuit
B.inductive circuit
C.magnetic circuit
D.resistive circuit
A.phase angle
B.frequency
C.wave form
D.half mode
A.vibration
B.watertight integrity
C.speed droop
D.reactive power
A.frequency meter
B.voltage regulator
C.governor control
D.sychroscope switch
A.rheostat
B.governor
C.exciter
D.capacitor
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
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.
If separating effect is not good, which measure should be taken ()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
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?()
The condensers located in various stages of a flash evaporator are cooled by()
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()