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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.
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ECAT Functions in “C” Test Online MCQs

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

display();

call display();

display;

call display;

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

Only in C++

Only in main()

Yes

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

int sum(int, int);

def sum(int, int);

function sum(int, int);

sum(int, int);

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

array

float

void

int

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

float

void

char

int

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

float

void

char

int

7. What does the void return type signify?

Returns a number

Returns a pointer

Returns nothing

Returns zero

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

No special keyword needed

recursive

self

recur

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

void

define

No keyword is required

func

10. What is a function prototype?

A function definition

None of these

A declaration of a function before its use

A function call

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

math.h

stdio.h

stdlib.h

conio.h

12. 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

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

Pass by address

Reference passing

Default parameter passing

Pointer passing

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

start()

main()

init()

entry()

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

Two

Only one

Zero

Unlimited

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

break

end

exit

return

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

They can return more than one value directly

They improve code readability

They reduce code duplication

They help in modular programming

18. Which of the following is correct about recursion?

Recursion is only allowed once

Recursion cannot be used in C

Every recursive function must have a condition to stop

Recursion needs goto

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

Global

File-level

Function-level

External

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

break

continue

exit()

return

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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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