Explore topic-wise MCQs in Arduino.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Arduino knowledge and support exam preparation. Choose a topic below to get started.

1.

What do we need to do if we want to run the setup() function in an infinite loop?

A. Call the setup() function from a custom named function
B. Call the setup() function from a constructor
C. Call the setup() function from the loop() function
D. Call the setup() function from the destructor
Answer» D. Call the setup() function from the destructor
Discussion
2.

Is it syntactically correct to write the loop() function over the setup() function while writing an Arduino program?

A. No, it is not syntactically correct
B. Yes, it is syntactically correct but will result in the loop() method executing first
C. Yes, it is syntactically correct and the setup() function will execute first
D. It is syntactically correct but logically wrong
Answer» D. It is syntactically correct but logically wrong
Discussion
3.

Can the setup() function change the value of constant variables?

A. Yes, it can change
B. No, it cannot change
C. Yes, it can change but only integer values
D. Yes, it can change but only byte values
Answer» C. Yes, it can change but only integer values
Discussion
4.

How many times does the setup() function run on every startup of the Arduino System?

A. 1
B. 2
C. 3
D. 4
Answer» B. 2
Discussion