Electrical Drives MCQ

Electrical Drives MCQ

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  • 25th Aug, 2022

Take Electrical Drives MCQ Test & Online Quiz to test your Knowledge

Practice here the best Electrical Drives MCQ Questions that check your basic knowledge of Electrical Drives. This Electrical Drives MCQ Test contains 20+ Multiple Choice Questions. You have to select the right answer to the question. apart from this, you can also download Electrical Drives MCQ PDF, completely free.

Electrical Drives MCQ Test

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

  • A. Plugging braking
  • B.Dynamic braking
  • C.Regenerative braking.
  • D.None of the above

2) Which of the following was the first city in India to adopt electric traction?

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

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

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

4) Which of the following is the basic elements of a electric drive?

  • A. Control system
  • B.Electric motor
  • C.Both 1 & 2
  • D.None of the above

5) ...................... is preferred for automatic drives.

  • A. Shunt Motor
  • B.Synchronous motors
  • C.Squirrel cage induction motor
  • D.Ward Leonard controlled dc motors
Download Free : Electrical Drives MCQ PDF

6) Which of the following drive is also called as Line shaft drive?

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

7) Which of the following drive is used for metal-cutting machines tools, rolling mills etc.

  • A. Group Drive
  • B.Individual drive
  • C.Multimotor drive
  • D.All of the above

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

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

9) Is reverse motoring mode available in fourth quadrant?

  • A. Yes
  • B.No

10) Which of the following is an example of variable loss?

  • A. Friction loss
  • B.Windage loss
  • C.Hysteresis loss
  • D.Armature copper loss

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

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

12) Which of the following is a mark to space ratio?

  • A. Ton÷Toff
  • B.Ton÷Toff
  • C.Ton÷(Ton- Toff)
  • D.Ton÷2×(Ton*Toff)

13) ............. are best for the rolling mills.

  • A. D.C. motors
  • B.Single phase motors
  • C.Slip ring induction motors
  • D.Squirrel cage induction motors

14) Which of the following option has least range of speed control?

  • A. Schrage motor
  • B.D.C. shunt motor
  • C.Synchronous motor
  • D.Slip ring induction motor

15) Which of the following part of a motor needs maximum attention for maintenance?

  • A. Rearing
  • B.Stator winding
  • C.Rotor winding
  • D.None of the above

16) Which of the following motor is a constant speed motor?

  • A. Schrage motor
  • B.Induction motor
  • C.Universal motor
  • D.Synchronous motor

17) Which of the following is the disadvantage of rotor resistance control?

  • A. High line power factor
  • B.Absence of line current harmonics
  • C.Speed changes very widely with load variation
  • D.Availability of full rated torque at starting

18) What are the basic requirements of a braking system?

  • A. It should be inexhaustible
  • B.Easy to use for driver to operate
  • C.The maintenance should be a minimum
  • D.All of the above

19) DC series motor behaves as a ............... in dynamic braking?

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

20) Which of the following is the formula for thermal voltage?

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

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