Question

An induction motor is preferred to a d.c. motor because it________
A. Provides high starting torque
B. Provides fine speed control C. Has simple and rugged construction
D. None of the above ​

Answer 1

Answer:

B is correct answer

Because speed can be controlled by controlling power supply

Answer 2

INDUCTION MOTOR

An induction motor is preferred to a dc motor because it (c) HAS SIMPLE AND RUGGED CONSTRUCTION

KEY TAKEAWAYS FOR INDUCTION MOTOR PREFERENCE OVER DC MOTORS:

* Induction motors are more durable and efficient than DC motors, and they may be powered by conventional AC power.

* When driven constantly, DC motors require daily cleaning of their commutators, brush replacement many times per year, and refinishing of their commutators to avoid chewing up the brushes anytime the mica insulation comes above the copper due to wear of the copper over time.

* They also need a DC source to power them from ordinary distribution power, which is either a costly electronic rectifier package or a generator powered by an AC motor, with the generator adding to the maintenance issues.