A.cannot be detected tinder normal conditions
B.is of no consequence to engineering personnel
C.is indicated at the branch circuit breaker panel
D.is indicated by the ground detecting lamps on the main switchboard
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A.small wire brush
B.compressed air jet
C.clean dry cloth
D.10% solution carbon solvent and water
A.portable growler
B.galvanometer
C.visual inspection
D.megohmmeter
A.over-speed trip
B.reverse power relay
C.back pressure trip
D.governor controls
A.Impedance
B.Current
C.Resistance
D.Voltage
A.Frequency meter
B.Ammeter
C.Voltmeter
D.All of the above
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
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.
The shipboard oil pollution emergency plan will be invalid after （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
To proceed to the assistance of a ship in distress is（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
The condensers located in various stages of a flash evaporator are cooled by（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Which of the following items don’t belong to dock repair works?（）