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 - 4
Question 1:
The ‘crawling” in an induction motor is caused by
(a) high loads
(6) low voltage supply
(c) improper design of machine
(d) harmonics developed in the motor
Correct Answer – (D)
Question 2 :
DOL starting of induction motors is usually restricted to
(a) low horsepower motors
(b) variable speed motors
(c) high horsepower motors
(d) high speed motors
Correct Answer – (A)
Question 3 :
In three-phase squirrel-cage induction motors
(a) rotor conductor ends are short-circuited through slip rings
(b) rotor conductors are short-circuited through end rings
(c) rotor conductors are kept open
(d) rotor conductors are connected to insulation
Correct Answer – (B)
Question 4 :
An induction motor is
(a) self-starting with zero torque
(b) self-starting with high torque
(c) self-starting with low torque
(d) non-self starting
Correct Answer – (C)
Question 5 :
For which motor the speed can be controlled from rotor side ?
(a) Squirrel-cage induction motor
(b) Slip-ring induction motor
(c) Both (a) and (b)
(d) None of the above
Correct Answer – (B)
MCQ Questions Electrical Engineering Polyphase Induction Motors
Question 6:
The speed of a squirrel-cage induction motor can be controlled by all of the following except
(a) changing supply frequency
(b) changing number of poles
(c) changing winding resistance
(d) reducing supply voltage
Correct Answer – (C)
Question 7:
In a three-phase induction motor, the number of poles in the rotor winding is always
(a) zero
(b) more than the number of poles in stator
(c) less than number of poles in stator
(d) equal to number of poles in stator
Correct Answer – (D)
Question 8:
The maximum torque in an induction motor depends on
(a) frequency
(b) rotor inductive reactance
(c) square of supply voltage
(d) all of the above
Correct Answer – (D)
Question 9:
If any two phases for an induction motor are interchanged
(a) the motor will run in reverse direction
(b) the motor will run at reduced speed
(c) the motor will not run
(d) the motor will burn
Correct Answer – (A)
Question 10:
In the circle diagram for induction motor, the diameter of the circle represents
(a) slip
(b) rotor current
(c) running torque
(d) line voltage
Correct Answer – (B)
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