A.keeping the terminals clean
B.coating cable connections with petroleum jelly
C.maintaining a trickle charge
D.All of the above
您可能感興趣的試卷
你可能感興趣的試題
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
A.kilowatts
B.ampere-turns
C.kilowatt-volts
D.kilovolt-amperes
最新試題
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()
Cold weather starting of a diesel engine may be made easier by()
When does auxiliary burner of incinerator put into operation? ()Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Using a file without a handle may result in ()
Flame failure in an automatically fired auxiliary boiler can from a/an ()
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()
During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.