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Electrical Machine Design - Interview Questions and Answers

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81. is usually used for brush rockers
A. Mild steel
B. Copper
C. Aluminium
D. Cast-iron
Explanation:
82. In induction motors, the length of air gap in kept as small as mechanically possible is order to have
A. low power factor
B. high power factor
C. high over load capacity
D. any of the above
Explanation: