Computer Functions in “C” Test Online

Mustansar KhanLast Updated: October 15, 2025

Important Computer Functions in “C” Question and Answer

Total Questions:	20
Time Allowed:	20 Minutes
Total Marks:	20
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	ECAT Entry Test Computer Online Test Interview Questions about Computer All Universities Entrance Test Recruitments Tests

Functions in “C” Practice Test Online With Explanation

Please wait...

Page 1 of 1

Uncategorized

1. Which function is always present in every C program?

entry()

init()

start()

main()

2. Which of the following passes arguments by value in C?

Default parameter passing

Reference passing

Pointer passing

Pass by address

3. Which header file is needed for exit()?

stdio.h

math.h

stdlib.h

conio.h

4. What is the return type of main() usually?

void

char

float

int

5. Which of the following is not true about functions?

They help in modular programming

They can return more than one value directly

They improve code readability

They reduce code duplication

6. Which keyword is used to define a function in C?

func

void

define

No keyword is required

7. What is a function prototype?

A declaration of a function before its use

A function definition

A function call

None of these

8. Which of the following is not a valid return type of a function?

float

int

array

void

9. What does the void return type signify?

Returns nothing

Returns zero

Returns a number

Returns a pointer

10. What is the scope of a function declared as static?

Global

Function-level

File-level

External

11. How many values can a function return in C?

Zero

Two

Unlimited

Only one

12. What is the default return type of a function in C if not specified?

char

int

float

void

13. What is function overloading?

Functions with same name and parameters

Not supported in C

Multiple functions with same name but different parameters

Function with multiple return types

14. Can we use the same function name for different return types?

Only in C++

Yes

Only in main()

15. Which of the following is correct about recursion?

Recursion cannot be used in C

Recursion needs goto

Recursion is only allowed once

Every recursive function must have a condition to stop

16. What is the correct syntax to call a function named display?

display();

call display;

display;

call display();

17. Which of the following is a valid function declaration in C?

function sum(int, int);

int sum(int, int);

sum(int, int);

def sum(int, int);

18. Which keyword is used to declare a function that can call itself?

recur

self

No special keyword needed

recursive

19. Which of the following is used to return a value from a function?

end

return

exit

break

20. Which of the following functions is used to terminate a program?

return

continue

exit()

break

Can't find what you're looking for? Search below:

Latest Updates

SEO Mcqs Test Online
Computer Word Processing Test Online
Basic Information Technology Info Test Online
Cloud Computing Basics Information Test Online
AutoCAD Test Online
PHP Mcqs Test Online
MS Windows 10 Basic Info Test Online
Python Mcqs Test Online

Mustansar KhanLast Updated: October 15, 2025

Important Computer Functions in “C” Question and Answer

Functions in “C” Practice Test Online With Explanation

Uncategorized

Latest Updates

Mustansar Khan

Leave a Reply Cancel reply