Worksheetstest
Total questions: 11
Worksheet time: 8mins
Name
Class
Date
1.
Student's name
4 lines
2.
How does a Smart Street light works?
a)
When there is no car in front of sensor, light switches ON
b)
The light always remains ON
c)
The light always remains OFF
d)
When car comes in front of sensor, light switches ON
3.
Which of the following can be used to conserve energy
a)
When you leave the room, the light automatically gets turned off.
b)
Unplug the appliances when not in use.
c)
Street lights should be ON only when some car passes.
d)
All of the above
4.
What is meant by Reflection of Light
a)
Absorbing of Light and heat
b)
The bouncing back of Light
c)
Passing of Light and heat
d)
None of the above
5.
Which of the following is correct about sensors
a)
Sensors are used to charge the battery
b)
Sensors are used to sense changes in environment
c)
Sensors are used to produce heat
d)
Sensors are used to store the charges
6.
What is the voltage difference between two legs of LED
a)
5V
b)
10V
c)
20V
d)
100V
7.
What is the voltage difference between two legs of LED
a)
10V
b)
0V
c)
20V
d)
100V
8.
Which of the following is the Transmitter of Infrared light in IR sensor
a)
White LED
b)
VCC pin
c)
Red Light
d)
OUT pin
9.
Which of the following is the detector of Infrared light in IR sensor
a)
VCC pin
b)
GND pin
c)
Black LED
d)
Red Light
10.
Which Lights turn ON when object comes in front of IR sensor
a)
Both Object Indicator and Power Indicator
b)
Only Power Indicator
c)
Only Light Indicator
d)
Only Object Indicator
11.
Which pins of Nano are used to give power to the breadboard
a)
C1
b)
5V and GND
c)
B2
d)
D1
100 %
