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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 function is always present in every C program?

main()

init()

start()

entry()

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

Pass by address

Pointer passing

Default parameter passing

Reference passing

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

void

int

array

float

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

They reduce code duplication

They can return more than one value directly

They improve code readability

They help in modular programming

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

math.h

stdlib.h

stdio.h

conio.h

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

Only in main()

Yes

Only in C++

7. Which of the following is correct about recursion?

Every recursive function must have a condition to stop

Recursion is only allowed once

Recursion needs goto

Recursion cannot be used in C

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

char

float

void

int

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

continue

break

exit()

return

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

File-level

External

Function-level

Global

11. What is a function prototype?

None of these

A function definition

A declaration of a function before its use

A function call

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

def sum(int, int);

int sum(int, int);

function sum(int, int);

sum(int, int);

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

Zero

Unlimited

Only one

Two

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

return

exit

end

break

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

define

No keyword is required

void

func

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

char

int

void

float

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

display();

call display();

call display;

display;

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

No special keyword needed

self

recur

recursive

19. What does the void return type signify?

Returns a number

Returns a pointer

Returns nothing

Returns zero

20. What is function overloading?

Multiple functions with same name but different parameters

Functions with same name and parameters

Not supported in C

Function with multiple return types

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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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