Home/Electrical-Engineering/DC Motors

DC Motors MCQs

313 questionsElectrical-EngineeringPage 3 of 35

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 19easy

Which of the following forms an energy converter?

⚑ Report ✎ Feedback

Question 20easy

Which of the following parts helps the commutation process?

⚑ Report ✎ Feedback

Question 21easy

Commutation in a dc machine may be hnprovedby

⚑ Report ✎ Feedback

Question 22easy

Each commutator segment is connected to the armature conductor by means of

⚑ Report ✎ Feedback

Question 23easy

In a dc generator, sparking between brushes and commutator surface may be due to

⚑ Report ✎ Feedback

Question 24easy

Brushes for commutators for 220 V dc generator are generally made of

⚑ Report ✎ Feedback

Question 25easy

Commutato r of a dc machine acts as a

⚑ Report ✎ Feedback

Question 26easy

The maximum nuber of brushes which machine may be used in an electrical machine isnumber of poles i the machine equal to

⚑ Report ✎ Feedback

Question 27easy

For a lapature with Z conductors and P poles, the maximum number of equalizer rings required are

⚑ Report ✎ Feedback