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Computer Getting Started with “C” Test Online

Mustansar KhanLast Updated: October 15, 2025

Start your preparation for Computer Getting Started with “C” Test Online. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Computer Getting Started with “C” Question and Answer

Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Getting Started with “C” Practice Test Online With Explanation

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1. What is the result of sizeof(char) on most systems?

2. Which of the following functions is the entry point of a C program?

start()

main()

begin()

init()

3. What does the keyword void indicate when used in a function?

The function has no parameters

The function returns no value

The function is private

The function returns a number

4. Which of the following is a relational operator?

5. Which of the following is used to take input from the user?

scanf()

print()

puts()

echo()

6. What will printf("%d", 10 + 20); output?

Error

1020

10 + 20

7. What is the result of 5 % 2 in C?

2.5

8. Which of the following is a correct extension for a C source file?

.cpp

.py

.java

9. What is the default return type of main() in C?

int

void

char

float

10. Which of the following is used to declare a constant in C?

#define

const

Both A and B

static

11. How do you declare a variable in C?

int x;

variable x;

var x;

declare x;

12. Which escape sequence is used to insert a new line in C?

13. Which format specifier is used for float values in C?

14. Which operator is used for assignment in C?

15. Which of the following data types can store real numbers?

float

int

char

long

16. Which of the following is not a valid C keyword?

mutable

auto

static

return

17. Which keyword is used to define a user-defined data type?

new

define

struct

typedef

18. Which format specifier is used to print characters in C?

19. Which library function is used to calculate power in C?

exp()

power()

pow()

sqrt()

20. What does the return statement do in a function?

Prints a message

Returns control to the caller

Ends the program

Loops the function

21. What is a syntax error?

Run-time error

Error after compilation

Error in logic

Mistake in program structure

22. Which symbol is used for the address-of operator in C?

23. Which of the following is used for string handling in C?

string.h

conio.h

stdlib.h

math.h

24. What is the correct syntax to output "Hello World" in C?

cout << "Hello World";

echo("Hello World");

print("Hello World");

printf("Hello World");

25. Which of the following operators is used to increment a variable by 1?

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26. Which of the following is the correct syntax to define an array?

array int arr[10];

int arr[10];

int arr(10);

int arr[] = new int[10];

27. Which of these is a looping statement in C?

while

switch

break

28. Which of the following is a valid data type in C?

int

number

num

integer

29. What is the output of printf("%c", 65);?

Error

30. What is the correct way to declare a pointer in C?

int *ptr;

int &ptr;

pointer int ptr;

int ptr;

31. What will the expression 10 / 3 return in C?

3.0

3.33

32. Which character is used to terminate a string in C?

NULL

33. Which operator is used to compare two values for equality?

equals

34. Which data type is used to store a single character?

char

int

string

float

35. Which operator is used to dereference a pointer?

36. What is the use of the continue statement in loops?

Exit the loop

Restart the loop

End the program

Skip the current iteration

37. Which keyword is used to create a constant in C?

static

define

const

constant

38. Which header file is used for mathematical functions like sqrt()?

math.h

conio.h

string.h

stdlib.h

39. How do you include the standard I/O header in a C program?

using stdio.h

#include

include stdio

#import stdio.h

40. Which symbol is used to indicate the end of a statement in C?

;

41. What is the size of an int in C (typically on 32-bit systems)?

8 bytes

4 bytes

2 bytes

1 byte

42. Which function is used to read a single character from the user?

getchar()

input()

read()

getc()

43. Which keyword is used to exit a loop early?

stop

return

exit

break

44. Which header file is needed to use printf() and scanf()?

math.h

stdio.h

conio.h

stdlib.h

45. Which of the following is a valid identifier in C?

value_2

float

2value

@count

46. Which of the following is a logical operator in C?

47. Which of the following loops executes at least once?

do-while

for

while

None

48. Which of the following is a correct function prototype?

func int();

declare func();

int func();

int func;

49. Which symbol is used for comments in C?

// or /* */

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

func

define

No keyword needed

function

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Mustansar KhanLast Updated: October 15, 2025

Important Computer Getting Started with “C” Question and Answer

Getting Started with “C” Practice Test Online With Explanation

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