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- Subject
- D.C. Motorselectrical-engineering-mcqs › d-c-motors
- Published
- 2 Jul 2018
- Last updated
- 28 May 2026
Explanation
Hysteresis loss mainly depends on the frequency of magnetic reversals, the maximum flux density, and the properties of the iron core such as its volume and grade. The rate of ventilating air flow primarily affects cooling and has minimal influence on hysteresis loss.
More D.C. Motors MCQs
Practice related questions from the same subject.
- 1.What principle does regenerative braking rely on?
- 2.The Ward Leonard technique for regulating motor speed primarily involves which method?
- 3.Which test is suitable for conducting on a DC series motor?
- 4.What effect does armature reaction have on the speed of a DC motor?
- 5.In a DC motor, how is the interpole winding typically connected?
- 6.Why is it unsafe to start a DC series motor when it is running without any load?
- 7.Which technique is commonly employed to regulate the speed of a DC shunt motor?
- 8.What will happen to the speed of a DC shunt motor if the resistance in its field winding is raised?
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