Unit-II

Unit-II

University

20 Qs

quiz-placeholder

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Unit-II

Unit-II

Assessment

Quiz

Professional Development

University

Practice Problem

Hard

Created by

Valai Ganesh

Used 6+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main principle of a motion sensor?

To notice moving objects

To detect sound waves

To sense temperature changes

To measure light intensity

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of motion sensor is commonly used in indoor alarms?

Tomographic sensor

Ultrasonic sensor

Microwave sensor

Passive Infrared (PIR) sensor

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main drawback of ultrasonic sensors?

They are prone to false alarms

They consume a lot of power

They are expensive

They are not sensitive enough

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary application of potentiometers?

Automated lighting control

Energy conservation

Control systems with feedback loop

Home security systems

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of resolvers over other technologies?

They are used in indoor alarms

They are sensitive to temperature changes

They are cheaper

They offer reliability benefits

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of an absolute optical encoder?

To detect sound waves

To measure light intensity

To generate digital word identifying actual position of the shaft

To sense temperature changes

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the resolution of an absolute optical encoder with 4 concentric rings?

1 part in 8

1 part in 16

1 part in 4

1 part in 2

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