QUIZ G11

Which of the following variable names is invalid in Arduino?

• sensorValue

• 123data

• temperature_sensor

• motorSpeed

What is the function of "String" data type?

• For declaring alphabetical value

• For wiring the circuit

• For storing number

• For displaying the data

How is a string stored in Arduino?

• As an array of characters

• As a single number

• As binary code

• As an integer

What type of values does a digital pin read?

• Any value between 0 and 1023

• Only HIGH (1) or LOW (0)

• Any floating point value

• A value between 0 and 255

Which of the following functions writes a HIGH signal to a digital pin?

• digitalWrite(pin, 1);

• analogWrite(pin, HIGH);

• digitalRead(pin, HIGH);

• analogRead(pin, 1);

What is the correct way to declare an integer variable named speed in Arduino?

• int speed = 10;

• integer speed = 10;

• var speed = 10;

• speed = 10;

What is the purpose of a variable in Arduino?

• To store and manipulate data

• To create new functions

• To directly control hardware

• To print values on the screen

Which of the followings is NOT a type of variable?

• Char

• Flood

• Int

• String

Which of the following is a valid variable name?

• float#

• if23

• sensorValue

• 5value

Which data type should be used to store whole numbers in Arduino?

• float

• char

• int

• Boolean