A.trap
B.regulating valve
C.check valve
D.filter
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A.circuit breaker
B.amplifier
C.diode
D.capacitor
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
最新試題
To proceed to the assistance of a ship in distress is（）
（） is not installed on the main switchboar.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The main purpose of port State control is not to（）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
Diesel engine air start system check valves are opened by （）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）