A.series circuit
B.grounded circuit
C.short circuit
D.closed circuit
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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 ISPS Code consists of a mandatory section-Part A, which shows（）
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