A.circuit breaker
B.amplifier
C.diode
D.capacitor
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A.keeping the terminals clean
B.coating cable connections with petroleum jelly
C.maintaining a trickle charge
D.All of the above
A.Any time it is deemed necessary
B.Only with the masters permission
C.After a 10 minute delay to the input command
D.Only after the throttle has been placed in stop
A.has high resistance at low temperatures
B.has a highly polished surface
C.is able to pass current with little opposition
D.holds insulation together well
A.analogger
B.bell logger
C.alarm logger
D.data logger
A.Polyphase
B.Wound-rotor
C.Induction
D.Synchronous
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
The main purpose of port State control is not to（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
If separating effect is not good, which measure should be taken （）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
The condensers located in various stages of a flash evaporator are cooled by（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）