Explore topic-wise MCQs in Arduino.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Arduino knowledge and support exam preparation. Choose a topic below to get started.

1.

How many pins are available for interrupt functions in the Arduino Uno?

A. No pins
B. All pins except pin 2 and 3
C. Only pin 2
D. Only pins 2 and 3
Answer» C. Only pin 2
Discussion
2.

How many pins are available for interrupt functions in the Arduino Zero?

A. No pins
B. All pins except pin 4
C. Only pin 4
D. Only pin 3
Answer» C. Only pin 4
Discussion
3.

What is the use of the detachInterrupt() function?

A. To turn off interrupt
B. To turn on interrupt
C. To disable interrupt functions for the remaining ON time.
D. To turn off the Arduino
Answer» B. To turn on interrupt
Discussion
4.

What is the use of the interrupt mode?

A. Decides which type of transition to trigger on
B. Decides when to turn off interrupts
C. Decides which pin to turn off
D. Decides when to turn off the Arduino Board
Answer» B. Decides when to turn off interrupts
Discussion
5.

When does the Interrupt Handler execute it s assigned code?

A. After all the codes executed in the program
B. Before any code is executed in the program
C. Blocks the code from getting executed at any time in the program
D. When the interrupt is in effect
Answer» E.
Discussion
6.

What is the use of pin change interrupts?

A. To change pins during interrupts
B. To use more pins for interrupts
C. To disable pin usage during interrupts
D. To enable pin usage during interrupts
Answer» C. To disable pin usage during interrupts
Discussion
7.

Will the delay() function work inside an interrupt routine?

A. Yes
B. No
Answer» C.
Discussion
8.

What is the use of the attachInterrupt() function?

A. To enable ISR usage
B. To enable ISR usage, but only on certain Arduino Boards
C. To decommission ISR usage for a particular Arduino Board
D. To translate pin numbers
Answer» B. To enable ISR usage, but only on certain Arduino Boards
Discussion
9.

What is the use of the digitalPinToInterrupt() function?

A. To create an Interrupt Object
B. To delete an Interrupt Object
C. To map the Arduino Pin to the Interrupt pin
D. To invoke the Interrupt Service Routine
Answer» D. To invoke the Interrupt Service Routine
Discussion
10.

What is the use of the Interrupt Service Routine in an Arduino?

A. To automate functions
B. To boot up the arduino
C. To make more memory
D. To exit any code that is running
Answer» B. To boot up the arduino
Discussion