M

Mr. Dubey • 52.30K Points
Coach 

Q. Plugging is used in

(A) small motors only
(B) small and medium powered
(C) only in large heavy machines
(D) everywhere
Correct : Option (A)

Explanation: 
 plugging is used in small scale applications only. the large initial current and high mechanical stress restrict the application of plugging in large machines. so, in order to balance stress this method is used in small machines only.

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