Short-circuiter is used in_____________?
		A. repulsion induction motor
B. repulsion motor
C. repulsion start induction run motor
D. none of the above
		A. repulsion induction motor
B. repulsion motor
C. repulsion start induction run motor
D. none of the above
		A. is self-starting
B. is constant speed motor
C. needs no D.C. excitation
D. all of the above
		A. magnetic relay
B. thermal relay
C. centrifugal switch
D. none of the above
		A. run faster
B. spark at light loads
C. draw excessive current and overheat
D. run slower
		A. It requires only one winding
B. It can rotate in one direction only
C. It is self-starting
D. It is not self-starting
		A. slip rings
B. commutator
C. both A. and (b)
D. none of the above
		A. inherently self-starting with high torque
B. inherently self-starting with low torque
C. inherently non-self-starting with low torque
D. inherently non-self-starting with high torque