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

.java

.py

.cpp

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

scanf()

echo()

puts()

print()

3. Which operator is used to dereference a pointer?

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

NULL

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

char

void

int

float

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

int

num

integer

number

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

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

return

static

mutable

auto

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

conio.h

stdio.h

stdlib.h

math.h

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

Restart the loop

End the program

Skip the current iteration

Exit the loop

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

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

stdlib.h

string.h

math.h

conio.h

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

14. Which operator is used for assignment in C?

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

equals

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

break

switch

while

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

pointer int ptr;

int &ptr;

int ptr;

int *ptr;

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

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

int arr[10];

int arr(10);

array int arr[10];

int arr[] = new int[10];

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

stop

exit

break

return

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

const

constant

define

static

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

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

func int();

int func;

int func();

declare func();

24. How do you declare a variable in C?

var x;

declare x;

int x;

variable x;

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

do-while

while

None

for

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

new

typedef

define

struct

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

int

long

float

char

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

func

define

No keyword needed

function

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

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

Error

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

printf("Hello World");

print("Hello World");

echo("Hello World");

cout << "Hello World";

32. Which symbol is used for comments in C?

// or /* */

33. What is a syntax error?

Error after compilation

Run-time error

Mistake in program structure

Error in logic

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

2.5

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

using stdio.h

#include

#import stdio.h

include stdio

36. 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

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

pow()

power()

sqrt()

exp()

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

value_2

@count

float

2value

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

4 bytes

2 bytes

1 byte

8 bytes

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

Error

1020

10 + 20

41. Which of the following is a relational operator?

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

begin()

main()

start()

init()

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

getchar()

read()

getc()

input()

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

3.0

3.33

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

;

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

stdlib.h

conio.h

math.h

string.h

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

static

Both A and B

const

#define

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

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

float

char

string

int

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

Ends the program

Prints a message

Returns control to the caller

Loops the 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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