MCQ On Electrical Drives

MCQ On Electrical Drives

  • Sharad Jaiswal
  • 22nd Nov, 2021

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

Practice Best Electrical Drive MCQ Questions

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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