A.series circuit
B.grounded circuit
C.short circuit
D.closed circuit
您可能感興趣的試卷
你可能感興趣的試題
A.means of rheostat the governor settings
B.a balance coil excitation
C.adjusting the governor settings
D.changing excitation
A.shunt
B.high-resistance coil in the armature circuit
C.low-resistance coil in the armature circuit
D.shunt and a coil of high resistance
A.minimum
B.maximum
C.leading
D.lagging
A.undercutting
B.sanding
C.burnishing
D.filing
A.reduce current pulsations
B.reduce brush chatter
C.prevent uneven commutator wear
D.allow greater power generation
最新試題
The treatment of the fuel oils involves storage, heating, filtering and（）
（） is not installed on the main switchboar.
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Using a file without a handle may result in （）
If separating effect is not good, which measure should be taken （）
The ISPS Code consists of a mandatory section-Part A, which shows（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
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
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.
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）