In case of speed control by injecting e.m.f. in the rotor circuit is possible,
A) d.c.shunt motor
B) schrage motor
C) synchronous motor
D) slip ring induction motor
Correct Answer:
Verified
Q15: Flame proof motors are used in
A)paper mills
B)steel
Q16: Which of the following machines has heavy
Q17: For derries and winches which of the
Q18: Battery operated scooter for braking uses
A)plugging
B)mechanical braking
C)regenerative
Q19: has least range of speed control.
A)Slip ring
Q20: has the least value of starting torque
Q22: A pony motor is used for the
Q23: In the speed can be varied by
Q24: In which of the following applications variable
Q25: Heavy duty cranes are used in
A)ore handling
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