MCQ Questions Electrical Engineering Polyphase Induction Motors
As well as questions about your reasons for applying to the role and the employer in question, engineering recruiters will be assessing your potential in the areas that is crucial to any engineering role: technical expertise. Engineers may be asked to perform feats of fantastic technical prowess, but it will be as as part of a Justice League rather than as a solo engineering superhero.
The interviewer is almost as nervous as the candidate in most interviews. You might wonder if you look confident enough, if you will hire the right person, or if you are asking the right engineering interview questions. The last question is arguably the most crucial part to worry about when you’re interviewing candidates.
The best engineering interview questions to ask candidates should be questions that reveal they have the skills required for the job. If you need a problem solver, ask questions about past experiences. If they need to have a specific skill set, ask them directly about their skills. This chapter consisting Electrical engineering MCQ Questions Electrical Engineering Polyphase Induction Motors
There are six major branches of engineering which include Electrical, Mechanical, Civil, Management, Geotechnical, and Chemical with many different subcategories under each main branch of engineering such as Structural or Biomedical engineering.
This article will get into the top engineering interview questions to ask candidates, eight types of interview questions, how to choose the questions you ask, and then will list excellent questions you can choose from. Let’s jump right in.
You can practice interviews using the resources available from our partners. MCQ Questions Electrical Engineering Polyphase Induction Motors are given below.
MCQ Questions Electrical Engineering Polyphase Induction Motors - Set - 2
Question 1:
The good power factor of an induction motor can be achieved if the average flux density in the air gap is
(a) absent
(b) small
(c) large
(d) infinity
Correct Answer – (B)
Question 2 :
In case of the induction motors the torque is
(a) inversely proportional to (Vslip)
(b) directly proportional to (slip)2
(c) inversely proportional to slip
(d) directly proportional to slip
Correct Answer – (D)
Question 3 :
Star-delta starting of motors is not possible in case of
(a) single phase motors
(b) variable speed motors
(c) low horse power motors
(d) high speed motors
Correct Answer – (A)
Question 4 :
The starting torque of a squirrel-cage induction motor is
(a) low
(b) negligible
(c) same as full-load torque
(d) slightly more than full-load torque
Correct Answer – (A)
Question 5 :
The efficiency of an induction motor can be expected to be nearly
(a) 60 to 90%
(b) 80 to 90%
(c) 95 to 98%
(d) 99%
Correct Answer – (B)
MCQ Questions Electrical Engineering Polyphase Induction Motors
Question 6:
An induction motor with 1000 r.p.m. speed will have
(a) 8 poles
(b) 6 poles
(c) 4 poles
(d) 2 poles
Correct Answer – (B)
Question 7:
The term ‘cogging’ is associated with
(a) three phase transformers
(b) compound generators
(c) D.C. series motors
(d) induction motors
Correct Answer – (D)
Question 8:
A double squirrel-cage induction motor has
(a) two rotors moving in oppsite direction
(b) two parallel windings in stator
(c) two parallel windings in rotor
(d) two series windings in stator
Correct Answer – (C)
Question 9:
The number of slip rings on a squirrel cage induction motor is usually
(a) two
(b) three
(c) four
(d) none
Correct Answer – (D)
Question 10:
In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be
(a) Ns
(b) s.N,
(c) (l-s)Ns
(d) (Ns-l)s
Correct Answer – (C)
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