Rotor rheostat control method of speed control is used for____________ – McqOptions

MCQOPTIONS

1.	Rotor rheostat control method of speed control is used for____________?
A.	squirrel-cage induction motors only
B.	slip ring induction motors only
C.	both A. and (b)
D.	none of the above
Answer» C. both A. and (b)

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