Quiz  /  Arduino Class 12 MCQ Questions With Answers

  • 1. 
    Choose the right order

  • output - process - input
  • process - output - input
  • input - process - output
  • input - output - process

  • 2. 
    What is a relay?

  • A type of race between LEDS
  • A switch that turns the light on
  • An electrically controlled mechanical switch

  • 3. 
    Which means keep going forever?void setup() { pinMode(13, OUTPUT); }void loop() { digitalWrite(13, HIGH); delay(1000); digitalWrite(13, LOW); delay(1000); }

  • OUTPUT
  • void setup
  • void loop
  • digitalWrite

  • 4. 
    DigitalWrite (LED1, HIGH);delay(1000);digitalWrite (LED1, LOW);What does the program do?

  • LED Switch Off at the beginning, wait for 60s and then switch ON.
  • LED Switch ON at the beginning, wait for 10s and then Switch OFF.
  • LED Switch ON at the beginning, wait for 1s and then switch ON.
  • LED Switch ON at the beginning, wait for 1s and then switch OFF.

  • 5. 
    We can program an input without out put for arduino

  • no
  • yes

  • 6. 
    Which means Off?void setup() { pinMode(13, OUTPUT); }void loop() { digitalWrite(13, HIGH); delay(1000); digitalWrite(13, LOW); delay(1000); }

  • OUTPUT
  • HIGH
  • LOW
  • delay

  • 7. 
    Int LED2=8;What is number eight is referring in the coding above?

  • Analog Pin
  • 5V
  • Ground
  • Digital Pin

  • 8. 
    Int LED1= 4;What statement is this?

  • Void Loop
  • Void Setup
  • Declaration
  • C language

  • 9. 
    Why is a resistor important?

  • It isn't important
  • It increases the power of a circuit
  • It controls the flow of electricity by lessening it to a certain amount

  • 10. 
    Why does the LED have different length legs?

  • For ease of inserting into the breadboard.
  • To indicate which side is negative and which side is positive.
  • To ensure it does not easily break.

  • 11. 
    Which of the following is true about comments added in the Arduino code?

  • A.  Comments help you understand how your program works
  • A.  Comments take up too much space and should never be used
  • A.  Comments are only there for high level programmers

  • 12. 
    What does a LCD do?

  • Displays information and messages
  • Creates a light
  • Turns on a circuit

  • 13. 
    LED is setup-up to blink. LEDs is an

  • Output
  • Input
  • pinMode
  • digitalWrite

  • 14. 
    What component do you need to add to a circuit in order to make the servo motor spin?

  • diode
  • transistor
  • LED
  • resistor

  • 15. 
    Which symbol ends a statement?

  • Semicolon ;
  • Parenthesis )
  • Comma ,
  • Curly Brace }

  • 16. 
    A push button on a circuit is an ___________

  • input
  • output
  • command
  • variable

  • 17. 
    What does pressing the check-mark do when working with your code?

  • Saves your work.
  • Downloads your code onto the arduino board.
  • Checks your code for mistakes.
  • Checks to see if the arduino is connected to the computer.

  • 18. 
    An LED is an:

  • output
  • input

  • 19. 
    Which term is NOT used in declaration?

  • Float
  • Integer
  • Output

  • 20. 
    The Piezzo buzzer works by applying __________ to it at a rate of 100x per second.

  • voltage
  • resistance
  • light
  • heat

  • 21. 
    Which pin is the jumper wire connected to?digitalWrite(13, HIGH); delay(1000); digitalWrite(13, LOW); delay(1000);

  • 13
  • 12
  • 100
  • digital pin

  • 22. 
    Int LED1=4;What is 'int= integer' used for?

  • Alphabets
  • Capital and small letters
  • Combination of Numbers and Alphabets
  • Numbers

  • 23. 
    What is an LED?

  • a light
  • a light emitting diode
  • a part of a circuit

  • 24. 
    Int LED1=4;Is that necessary to label LED into LED1, LED2, LED3 and so on....

  • YES
  • NO

  • 25. 
    Arduino has a USB port

  • yes
  • no
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