1. 1. Which one of the following is not a major system component of Arduino UNO microcontroller?

• WiFi Module

• Voltage Regulator

• Power Jack (Barrel)

• Crystal Oscillator

2. 2.The Arduino UNO board has______ digital I/O pins.

• 5

• 7

• 14

• 24

3. 3.The _________ on the microcontroller operates at a frequency of 16MHz

• Crystal Oscillator

• Voltage Regulator

• Power LED Indicator

• Main Microprocessor

4.Some of the _____ pins on the microcontroller can be programmed to produce Pulse Width Modulation output.

• ICSP

• Digital

• Analog

• Analog Reference

5.Which one of the components is not used to power up the microcontroller

• Vin Pin

• GND

• Barrel Jack

• USB Port

6.There are ____ PWM digital pins on the Arduino UNO microcontroller.

• 4

• 6

• 13

• 14

7.There are ____ Analog pins on the Arduino UNO microcontroller.

• 4

• 5

• 6

• 14

8.The ____ pins on the microcontroller can be used to read signal from humidity and temperature sensors.

• 5V

• GND

• Digital

• Analog

9.The Voltage Regulator controls and stabilised ____ voltage from the Power Jack and Vin pin.

• 5 V (DC)

• 3.3 V (DC)

• 110 V (AC)

• 240 V (AC)

10. 10.Which one of the component is used to calculate time in the microcontroller?

• Crystal Oscillator

• Voltage Regulator

• Power LED Indicator

• Main Microprocessor