Surprise Quiz - II 20EI205

Surprise Quiz - II 20EI205

Professional Development

10 Qs

quiz-placeholder

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Surprise Quiz - II 20EI205

Surprise Quiz - II 20EI205

Assessment

Quiz

Education

Professional Development

Practice Problem

Easy

Created by

Devasena Mohan

Used 3+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a single motor drives a number of machines through belts from a common shaft, such a type of drive system is known as __________.

individual drive

complex motor drive

multi-motor drive

group drive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following device is mainly used in DC drives?

Transistor

Diode

Thyristor

TRIAC

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The load cycle for a motor driving a power press will be __________.

variable load

continuous load

continuous but periodical

intermittent and variable load

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The principle of step-up chopper can be employed for the ________.

motoring mode

regenerative mode

plugging

reverse motoring mode

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a single-phase fully controlled converter drive, the average DC output voltage is controlled by:

Varying the input frequency

Varying the firing angle of the SCRs

Using a step-down transformer

Changing the rotor resistance

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a three-phase converter drive, how many pulses of DC are generated per cycle of AC?

1 pulse

2 pulses

3 pulses

6 pulses

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chopper drive, if the duty cycle is increased, the average output voltage:

Increases

Decreases

Remains the same

Fluctuates randomly

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