Explore topic-wise MCQs in Electrical Machines Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Machines Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

If it is desired to approximate the efficiency of an induction motor operating at slip ‘s’, then its efficiency is given by?

A. 1-s/1+s
B. 1/1+s
C. s/s+1
D. s/1-s
Answer» B. 1/1+s
Discussion
2.

Rc in the below circuit represents?

A. core loss of induction motor
B. no load losses of induction motor
C. iron losses of induction motor
D. copper losses of induction motor
Answer» B. no load losses of induction motor
Discussion