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Worksheets

sensors

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The thermistor whose resistance increases by increasing temperature is known as

a)

NTC thermistor

b)

PTC thermistor

c)

thermocouple

d)

none of the above

2.

which sensor is used by self driving car

a)

ultrasonic sensor

b)

temperature sensor

c)

proximity sensor

d)

pressure sensor

3.

A ___________________ is a thermally sensitive resistor that exhibits a large change in resistance

a)

thermistor

b)

thermometer

c)

thermocouple

d)

semiconductor based sensor

4.

____________________ sensor consists of two different metals connected at 2 points

a)

thermistor

b)

RTD

c)

thermocouple

d)

ultrasonic sensor

5.

Pressure is given by the formula ________________

a)

force per unit area

b)

mass per unit area

c)

force per unit volume

d)

mass per unit volume

6.

which type of material can be sensed by inductive proximity sensor ?

a)

wooden type

b)

metallic type

c)

plastic type

d)

glass type

7.

which type of material can be sensed by capacitive proximity sensor ?

a)

wooden type

b)

metallic type

c)

non metallic type

d)

both metallic and non metallic type

8.

How many pins are present in ultrasonic sensor ?

a)

1 pin

b)

2 pins

c)

3 pins

d)

4 pins

9.

what kind of waves the ultrasonic sensor works on ?

a)

gas

b)

heat

c)

light

d)

sound

10.

A proximity sensor requires physical contact

a)

true

b)

false

c)

depends on object

d)

none of the above