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DC Motors MCQs

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Practice free DC Motors multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 313 questions — no login required.

Question 10easy

A dc shunt generator develops a fault in the form of an open armature coil. As a temporary measure, you should

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Question 11easy

If residual magnetism of a shunt generator is destroyed accidentally, it may be restored by connecting its shund field

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Question 12easy

The sole purpose of commutator in a dc generator is to

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Question 13easy

All rotating electric machines are basically

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Question 14easy

All rotating electrical machines have

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Question 15easy

v xB=E is the equation of the electrical machines which

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Question 16easy

The function of commutator in a dc machine is

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Question 17easy

Under commutation in a dc machine gives rise to

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Question 18easy

A conductor is rotating within a magnetic field. At which of the following positions do the zero voltages occur?

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