These days D.C. motors are widely used in____________?
Correct answer: C. electric traction
- A. pumping sets
- B. air compressors
- C. electric traction
- D. machine shops
Explanation
D.C. motors are especially valuable in electric traction because their high starting torque and easy speed control suit frequent starting, stopping, and acceleration. Pumping sets and compressors are more commonly driven by induction motors.
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