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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 keyword is used to create a constant in C?

static

define

const

constant

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

2.5

3. How do you declare a variable in C?

variable x;

int x;

var x;

declare x;

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

break

return

exit

stop

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

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

int arr[10];

int arr(10);

int arr[] = new int[10];

array int arr[10];

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

void

float

char

int

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

getc()

getchar()

input()

read()

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

float

value_2

@count

2value

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

10 + 20

Error

1020

11. Which symbol is used for comments in C?

// or /* */

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

NULL

13. What is a syntax error?

Error after compilation

Run-time error

Mistake in program structure

Error in logic

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

do-while

while

None

for

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

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

init()

begin()

start()

main()

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

Error

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

conio.h

stdlib.h

math.h

stdio.h

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

pow()

power()

exp()

sqrt()

20. Which of the following is a relational operator?

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

.cpp

.java

.py

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

Skip the current iteration

Exit the loop

Restart the loop

End the program

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

int func;

func int();

int func();

declare func();

24. 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

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

math.h

stdlib.h

string.h

conio.h

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

break

while

switch

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

int

integer

num

number

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

8 bytes

1 byte

4 bytes

2 bytes

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

3.33

3.0

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

int &ptr;

pointer int ptr;

int *ptr;

int ptr;

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

equals

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

struct

define

typedef

new

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

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

include stdio

#include

using stdio.h

#import stdio.h

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

puts()

echo()

scanf()

print()

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

Returns control to the caller

Ends the program

Prints a message

Loops the function

37. Which operator is used for assignment in C?

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

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

math.h

stdlib.h

conio.h

string.h

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

auto

mutable

return

static

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

char

long

float

int

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

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

int

char

string

float

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

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

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

echo("Hello World");

print("Hello World");

printf("Hello World");

cout << "Hello World";

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

No keyword needed

func

function

define

48. Which operator is used to dereference a pointer?

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

;

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

const

Both A and B

static

#define

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