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WorksheetsIoT Sensors and Devices
Total questions: 20
Worksheet time: 18mins
___ is an input device that provides an output (signal) with respect to a specific physical quantity (input).
transmitter
signal
sensor
IoT
Which of these do not require any external power signal and directly generates output response?
Sensors
Passive Sensors
Active Sensors
Microcontroller
What type of sensor is shown in the figure?
Passive sensor
Active sensor
Guess the type of sensor from the figure shown.
PIR sensor
ultrasonic sensor
rainfall sensor
smoke detector
Which of these is a touch sensor?
None of these
Which of these is a non-contact type of sensor?
Ultrasonic sensor
PIR sensor
Touch Sensor
both A and B
What is the output voltage when the smoke is detected through the MQ-2 sensor?
High
Low
What happens to the resistance value when the soil moisture sensor detects the high amount of moisture in the soil?
Draw an LDR sensor
Which of these is an application of microcontroller?
Calculators
Accounting system
Washing machine
Games machine
How many types of instruction set are available for a microntroller?
(a)
What is the maximum voltage of Arduino Uno?
(a)
How many I/O digital pins are available in Arduino Uno?
16
14
13
6
Pin number 13 can be used as____
default potentiometer
default LeD
default input
default digital pin
Which of these inputs an analog electrical signal such as voltage or current and outputs a binary number?
Sensor
Transducer
ADC
DAC
Identify the component shown in the figure.
humidity sensor
bluetooth module
relay
controller board
Which of these is not a PWM pin?
3
9
6
8
Which of the below commands are used to configure the pins as input or output?
digitalWrite()
digitalRead()
Pinmode()
serial.println
Draw the waveform of PWM with 25% duty cycle.
How many terminals are there in a relay?
(a)
