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ECAT Computer Functions in “C” Test Online

Mustansar KhanLast Updated: May 1, 2025

ECAT Computer Science Functions in “C” Test

ECAT Computer Science Chapter 23 Functions in “C” Online Test

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

ECAT Functions in “C” Test Online MCQs

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

define

No keyword is required

void

func

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

display;

display();

call display;

call display();

3. What does the void return type signify?

Returns zero

Returns nothing

Returns a pointer

Returns a number

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

Default parameter passing

Reference passing

Pointer passing

Pass by address

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

int sum(int, int);

function sum(int, int);

def sum(int, int);

sum(int, int);

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

char

void

float

int

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

stdlib.h

conio.h

math.h

stdio.h

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

int

void

float

array

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

exit

return

break

end

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

Unlimited

Two

Zero

Only one

11. What is a function prototype?

None of these

A declaration of a function before its use

A function definition

A function call

12. What is function overloading?

Multiple functions with same name but different parameters

Function with multiple return types

Functions with same name and parameters

Not supported in C

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

Function-level

Global

File-level

External

14. Which of the following is correct about recursion?

Recursion needs goto

Every recursive function must have a condition to stop

Recursion is only allowed once

Recursion cannot be used in C

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

main()

start()

init()

entry()

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

recursive

No special keyword needed

self

recur

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

Only in C++

Only in main()

Yes

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

break

continue

exit()

return

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

They reduce code duplication

They can return more than one value directly

They help in modular programming

They improve code readability

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

char

void

int

float

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Mustansar KhanLast Updated: May 1, 2025

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ECAT Computer Functions in “C” Test Online

ECAT Computer Science Functions in “C” Test

ECAT Computer Science Chapter 23 Functions in “C” Online Test

ECAT Functions in “C” Test Online MCQs

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ECAT Computer Science Functions in “C” Test

ECAT Computer Science Chapter 23 Functions in “C” Online Test

ECAT Functions in “C” Test Online MCQs

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