Rotor resistance speed control is used in
A) squirrel cage induction motor
B) synchronous motor
C) slip ring induction motor
D) dc shunt motor.
Correct Answer:
Verified
Q7: The cooling time constant is usually
A)equal to
Q8: A motor of less than full load
Q9: Pole changing method of speed control is
Q10: To save the energy during braking
A)dynamic braking
Q11: To get speed higher than the base
Q13: Effect of friction torque is more pronounced
A)when
Q14: The equilibrium speed of a motor load
Q15: Most commonly used ac motor is
A)Synchronous motor
B)Slip
Q16: The motor commonly used in computers and
Q17: Regenerative braking mode can be achieved in
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