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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.
Test Helpful For:	ECAT Entry Test Computer Online Test Interview Questions about Computer All Universities Entrance Test Recruitments Tests

Getting Started with “C” Practice Test Online With Explanation

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

8 bytes

2 bytes

4 bytes

1 byte

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

2.5

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

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

break

switch

while

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

6. How do you declare a variable in C?

declare x;

variable x;

var x;

int x;

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

8. What is a syntax error?

Run-time error

Error in logic

Mistake in program structure

Error after compilation

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

constant

define

static

const

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

Error

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

break

return

stop

exit

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

3.0

3.33

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

14. Which operator is used to dereference a pointer?

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

char

int

float

string

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

Both A and B

const

static

#define

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

1020

10 + 20

Error

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

int *ptr;

pointer int ptr;

int ptr;

int &ptr;

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

while

do-while

None

for

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

Loops the function

Returns control to the caller

Ends the program

Prints a message

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

NULL

22. Which of the following is a relational operator?

23. Which symbol is used for comments in C?

// or /* */

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

2value

float

@count

value_2

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

float

int

char

long

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26. Which operator is used for assignment in C?

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

stdlib.h

conio.h

math.h

string.h

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

input()

getc()

getchar()

read()

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

The function returns no value

The function is private

The function returns a number

The function has no parameters

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

char

void

float

int

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

;

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

math.h

stdio.h

conio.h

stdlib.h

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

func int();

int func;

declare func();

int func();

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

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

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

echo("Hello World");

cout << "Hello World";

printf("Hello World");

print("Hello World");

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

End the program

Exit the loop

Skip the current iteration

Restart the loop

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

stdlib.h

conio.h

math.h

string.h

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

exp()

sqrt()

pow()

power()

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

static

return

mutable

auto

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

equals

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

No keyword needed

define

func

function

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

init()

start()

begin()

main()

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

.java

.cpp

.py

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

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

using stdio.h

#include

#import stdio.h

include stdio

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

echo()

scanf()

print()

puts()

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

define

new

struct

typedef

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

int arr[10];

array int arr[10];

int arr[] = new int[10];

int arr(10);

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

number

integer

num

int

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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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