C MCQ Questions

Q1. Which of the following is the correct syntax to declare a pointer in C?

Q2. Which of the following is the default return type of a C function if not specified?

Q3. Which format specifier is used to print an integer in C?

Q4. Which of the following is a valid storage class in C?

Q5. What will be the output of sizeof(char) in C?

Q6. Which operator is used to access the value stored at an address in C?

Q7. What is the correct way to declare a constant in C?

Q8. Which header file is required for using printf and scanf functions?

Q9. Which keyword is used to break out of a loop in C?

Q10. What is the output of 5/2 in C?

Q11. Which function is used to allocate memory dynamically in C?

Q12. Which operator is used for conditional evaluation in C?

Q13. Which of the following functions is used to compare two strings in C?

Q14. What is the index of the first element in a C array?

Q15. Which of the following is not a loop structure in C?

Q16. Which keyword is used to define a macro in C?

Q17. Which function is used to find the length of a string in C?

Q18. Which of the following data types has the largest size in C?

Q19. Which loop will execute at least once in C?

Q20. What is the correct file extension for a C source file?