1. What is an electrical drive?

An electrical drive is an equipment or machine that works on electricity. It basically converts electrical energy into mechanical energy. ...

2. List some applications of electrical drive?

Some applications of the electrical drive are: transportation systems conveyors robots hydraulic & electric motors diesel engines ...

3. What are AC and DC drives?

AC drives stand for Alternating Current drive that is used to control the frequency and variable speed. DC drives stand for Direct Current Drive which is used to convert alternating current into direct current. ...

4. What are different parts of electrical drives?

The main parts of the electrical drives are: power modulator controlling unit sensing units ...

5. In electrical drives load torques can be classified into how many types?

In electrical drives load torques can be classified into two types that are: active load torques passive load torques ...

6. What is regenerative braking?

Regenerative braking is a technique used to convert the kinetic energy of an electric vehicle into stored energy in the vehicle's battery by slowing down the vehicle by applying breaks. ...

7. What are different modes of operation in electrical drives?

There are three different modes of operation in electrical drives: Steady-State Acceleration including starting Deceleration including stopping ...

8. What is self-control mode of synchronous motors?

The self-controlled mode of synchronous motors changes the supply frequency so that the synchronous speed remains the same as that of the rotor speed. ...

9. What is brushless DC motor?

A Brushless DC motor does not contain permanent magnets on the outside of its structure instead, the permanent magnets are fixed on the rotor and the electromagnets are fixed on the stator. ...

10. What is Power modulator?

The power modulator is used to regulate the output power of the source and controls the power from the source to the motor is such that the motor transmits the speed-torque characteristic as per the requirement of the load. ...

25th
Aug

Electrical Drives MCQ

Admin
25th Aug, 2022
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Electrical Drives MCQ Pdf
Electrical Drives MCQ Questions

Electrical Drives MCQ Questions

1. Which of the following electrical braking system is preferred In industries ?
2. Which of the following was the first city in India to adopt electric traction?
3. Which of the following type electric drive is used in cranes?
4. Which of the following is the basic elements of a electric drive?
5. ...................... is preferred for automatic drives.
6. Which of the following drive is also called as Line shaft drive?
7. Which of the following drive is used for metal-cutting machines tools, rolling mills etc.
8. Which of the following type of force handles for active torques?
9. Is reverse motoring mode available in fourth quadrant?
10. Which of the following is an example of variable loss?
11. Which of the following is the unit of torque?
12. Which of the following is a mark to space ratio?
13. ............. are best for the rolling mills.
14. Which of the following option has least range of speed control?
15. Which of the following part of a motor needs maximum attention for maintenance?
16. Which of the following motor is a constant speed motor?
17. Which of the following is the disadvantage of rotor resistance control?
18. What are the basic requirements of a braking system?
19. DC series motor behaves as a ............... in dynamic braking?
20. Which of the following is the formula for thermal voltage?

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