A.doubled
B.quadrupled
C.unchanged
D.cut in half
您可能感興趣的試卷
你可能感興趣的試題
A.voltage regulator
B.reverse power relay
C.reverse current relay
D.governor control switch
A.field excitation of both units is adjusted
B.governors of both units are adjusted
C.phase sequence is altered
D.kilowatt load is evenly divided
A.are less expensive
B.require less maintenance
C.can be started across the line
D.offer a more effective means of controlling speed
A.Alternators
B.Wave guides
C.Exciters
D.Amplidynes
A.quartered
B.unchanged
C.doubled
D.quadrupled
最新試題
Using a file without a handle may result in ()
The treatment of the fuel oils involves storage, heating, filtering and()
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
If separating effect is not good, which measure should be taken ()
()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
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
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
Engine parameters shall be corresponded to NOx Technical Files. This is required by ()