IOT REVISION SET#1

Which one of the following components is used to control and stabilize the voltage given to Arduino UNO microcontroller?

• V in Pin

• USB Port

• Barrel Jack

• Voltage Regulator

In order to actively control the Arduino board, allowing your program to change and respond, what is the function to be called?

• Delay

• Loop

• pinMode

• Setup

How many Digital Pins does the Arduino UNO board have?

• 6

• 8

• 12

• 14

Which one of the following considerations is a constraint of sensor installation?

• Colour

• Cost

• Shape

• Temperature

Pertaining to Ingress Protection Rating, the second number after “IP” pertains to the rating against ingress by

• water.

• extreme heat.

• foreign objects.

• electrical current.

An example of IoT application in engineering system monitoring is

• smart home.

• smart parking.

• smart bearing.

• electrical current.

Which one of the following output devices can be used as amplifier or electronic switch?

• LED.

• Buzzer.

• Transistor.

• Stepper Motor.

Which one of the following I/O pins on the Arduino UNO microcontroller can be programed to output PWM signal?

• 3.3V pin.

• Digital pin 0 to 13.

• Analog pin A0 to A5.

• Digital pin 3,5,6,9,10, and 11.

What is the function of the 3.3V pin on the Arduino UNO microcontroller?

• To output 3.3 Volt AC.

• To output 3.3 Volt DC.

• To output PWM signal.

• To read off signal from 3.3 Volt sensor.

Which on of the following devices is used to limit current flowing through a circuit?

• Relays.

• Switches.

• Resistors.

• Transistors.