What part of a motor's armature is in direct contact with the brushes?

A. The case

B. The interpole

C. The end bell

D. The commutator

D. The commutator

If the power output of a generator is 70 kW while its power loss is 10 kW, what is the generator

efficiency?

A. 67.5 percent

B. 75.4 percent

C. 90.2 percent

D. 87.5 percent

    • 6 years ago
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