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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 default return type of main() in C?

int

float

void

char

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

func

function

No keyword needed

define

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

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

string.h

conio.h

stdlib.h

math.h

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

char

long

float

int

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

exp()

sqrt()

power()

pow()

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

3.0

3.33

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

Error

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

puts()

echo()

print()

scanf()

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

return

static

auto

mutable

11. Which of the following is a relational operator?

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

;

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

None

while

for

do-while

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

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

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

int

string

char

float

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

equals

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

#define

static

const

Both A and B

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

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

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

NULL

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

int func;

func int();

declare func();

int func();

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

getchar()

read()

input()

getc()

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

2value

value_2

float

@count

25. Which operator is used for assignment in C?

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

stdlib.h

string.h

math.h

conio.h

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

break

switch

while

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

begin()

main()

init()

start()

29. What is a syntax error?

Error after compilation

Run-time error

Error in logic

Mistake in program structure

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

define

struct

new

typedef

31. Which symbol is used for comments in C?

// or /* */

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

return

exit

break

stop

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

array int arr[10];

int arr[10];

int arr[] = new int[10];

int arr(10);

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

Skip the current iteration

End the program

Restart the loop

Exit the loop

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

The function returns a number

The function returns no value

The function has no parameters

The function is private

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

.py

.cpp

.java

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

printf("Hello World");

print("Hello World");

echo("Hello World");

cout << "Hello World";

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

pointer int ptr;

int ptr;

int &ptr;

int *ptr;

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

include stdio

#import stdio.h

#include

using stdio.h

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

num

integer

int

number

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

1 byte

8 bytes

4 bytes

2 bytes

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

43. How do you declare a variable in C?

variable x;

declare x;

var x;

int x;

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

Loops the function

Prints a message

Returns control to the caller

Ends the program

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

10 + 20

Error

1020

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

const

constant

define

static

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

48. Which operator is used to dereference a pointer?

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

math.h

conio.h

stdlib.h

stdio.h

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

2.5

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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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