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 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.
Which of the following items don’t belong to dock repair works?（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Diesel engine air start system check valves are opened by （）
If separating effect is not good, which measure should be taken （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
（） is not installed on the main switchboar.
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The shipboard oil pollution emergency plan will be invalid after （）