MCQ On Electrical Drives

MCQ On Electrical Drives | Freshers & Experienced

  • Sharad Jaiswal
  • 12th Feb, 2021

We have listed below the best MCQ On Electrical Drives for your basic knowledge of Electrical Drives. This Electrical Drives MCQ Quiz contains 25 multiple Choice Questions. You have to select the right answer to every question. 

Electrical Drive MCQ

1) _______was the first city in india to adopt electric traction.

  • A. Mumbai
  • B.Delhi
  • C.kolkata
  • D.Chennai

2) _____ drive is also called as line shaft drive

  • A. Individual drive
  • B.Group Drive
  • C.Multimotor drive
  • D.Both A & B

3) A four quadrant operation requires

  • A. two full converters in series.
  • B.two full converters connected in parallel.
  • C.two full converter connected in back to back.
  • D.two semi converters connected in back to back.

4) Full form of TVR is_____

  • A. Total voltage reversal
  • B.Total voltage reversal
  • C.Terminal voltage redirect
  • D.Terminal voltage reversal

5) Which of the following type electric drive is used in cranes?

  • A. Group
  • B.Multimotor
  • C.Individual
  • D.None of the above

6) The basic elements of a electric drive are:

  • A. electric motor.
  • B.control system
  • C.Both A and B
  • D.None of the above

7) Which of the following motor is preferred for automatic drives?

  • A. Shunt Motor
  • B.Ward Leonard controlled dc motors
  • C.Synchronous motors
  • D.Squirrel cage induction motor

8) The formula of thermal voltage is______

  • A. K×e÷T
  • B.K×T÷e
  • C.K*T÷e
  • D.None of the above

9) Which of the following is the unit of torque?

  • A. N-m
  • B.N-Hz
  • C.N-m2
  • D.N-m/sec

10) Which of the following electrical braking system is preferred In industries ?

  • A. Dynamic braking
  • B.Plugging braking
  • C.Regenerative braking.
  • D.Both A & B

11) Which of the following type of force handles for active torques?

  • A. Gravitational forces
  • B.Electrostatic forces
  • C.Strong nuclear forces
  • D.Weak nuclear forces

12) DC series motor behaves as a________in dynamic braking.

  • A. Transformer
  • B.Induction motor
  • C.Separately excited motor
  • D.Thyristor

13) VVVF control stand for______

  • A. Variable voltage variable frequency.
  • B.Variable voltage VAr frequency.
  • C.Variable VAR voltage frequency.
  • D.VAR variable voltage frequency.

14) The type of electric drive for a particular application depends upon

  • A. Environmental condition
  • B.Speed control range
  • C.Starting Nature
  • D.All of the above

15) ____ duty cycle consist of frequent on load and off-load period.

  • A. Short Time duty
  • B.Intermittent duty
  • C.the variable load
  • D.constant Load

16) Belt conveyors offer are:

  • A. High starting torque
  • B.Medium starting torque
  • C.Low starting torque
  • D.None of the above

17) The capacity of a crane is expressed in terms of

  • A. Span
  • B.Drives
  • C.Tonnes
  • D.Both A & B

18) Which of the following state capital is not on broad gauge track?

  • A. Bhopal
  • B.Allahabad
  • C.Jaipur
  • D.Jhansi

19) Which type of drive can be used for Hoisting Machine?

  • A. Leonard Method
  • B.Compound Motor
  • C.Ring Motor
  • D.All of the above

20) A synchronous Motor is found more economical when the load is above

  • A. 1 kW
  • B.10 kW
  • C.100 kW
  • D.240 kW

21) In case of kiln drives

  • A. Starting torque is almost zero
  • B.Starting torque and running torque is nearly equal
  • C.Starting torque is more than double of the running torque.
  • D.None of the above

22) ______is preferrd for synthetic fiber mills.

  • A. Series motor
  • B.Reluctance motor
  • C.Synchoronus motor
  • D.Shunt motor

23) The friction at the track is proportional to

  • A. speed
  • B.1/speed
  • C.1/speed2
  • D.None of these

24) The normal value of adhesion friction is

  • A. 0.12
  • B.0.25
  • C.0.40
  • D.0.75

25) ______have maximum unbalanced forces.

  • A. Electric locomotives
  • B.Diesel shunters
  • C.Diesel locomotives
  • D.Steam locomotives

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