Revision

To initiate the serial monitor, we write ............. in Arduino IDE

• Serial.begin(9600);

• Serial.monitor(initiate);

• Serial.print(9600);

• Serial.monitor(9600);

To print the value of variable "r", we write the following code .........

• Serial.print("r");

• Serial.print(r);

• Serial.print(R);

• Serial.print(r);

Which code will give me the resultant output?

Output:

Hi

Welcome to grade 12

• Serial.print(Hi);

  Serial.print(Welcome to grade 12);

• Serial.print("Hi");

  Serial.print("Welcome to grade 12");

• Serial.println(Hi);

  Serial.println(Welcome to grade 12);

• Serial.println("Hi");

  Serial.println("Welcome to grade 12");

Declare variable "Length" and assign 3.6 value in it.

(a)  

void setup(){ } is a function that runs once.

• True

• False

Select the two variables that considered bool type

• 5

• ?

• true

• "Name"

• false

Select the two variables that considered integer type

• 5

• ?

• 6.9

• 5.0

• 78

The error in the following code is:

Code:

void setup(){

Serial.begin(9600);

int x=5;

Serial.print(x+y);

}

void loop(){}

• "s" in serial must be SMALL

• "x" is not accepted as a variable name

• "y" is not declared variable

• void loop() must be removed as it is not used

The result of the following code is :

code:

void setup(){

int x=4;

int y=3;

Serial.begin(9600);

Serial.println("x+y=");

Serial.println(x+y);}

void loop(){}

• 4+3=

  7

• 4+3=7

• x+y=7

• x+y=

  7

The result of the following code in the serial monitor is

Code:

void setup(){

int x=4;

int y=5;

bool result;

result = x==y;

Serial.begin(9600);

Serial.print(result);}

void loop(){}

• 1

• 0

• true

• false