Unit-II
Quiz
•
Professional Development
•
University
•
Practice Problem
•
Hard
Valai Ganesh
Used 6+ times
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20 questions
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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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