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

start()

begin()

main()

init()

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

string.h

stdlib.h

conio.h

math.h

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

array int arr[10];

int arr[] = new int[10];

int arr(10);

int arr[10];

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

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

1020

10 + 20

Error

6. Which of the following is a relational operator?

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

stdlib.h

math.h

conio.h

string.h

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

constant

define

static

const

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

.py

.java

.cpp

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

new

typedef

define

struct

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

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

3.33

3.0

13. Which operator is used to dereference a pointer?

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

int ptr;

pointer int ptr;

int &ptr;

int *ptr;

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

#define

Both A and B

const

static

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

getc()

read()

input()

getchar()

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

return

break

stop

exit

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

2value

float

value_2

@count

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

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

None

while

do-while

for

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

Error

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

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

2 bytes

1 byte

8 bytes

4 bytes

24. How do you declare a variable in C?

variable x;

declare x;

int x;

var x;

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

print("Hello World");

cout << "Hello World";

echo("Hello World");

printf("Hello World");

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

define

function

No keyword needed

func

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

using stdio.h

#import stdio.h

include stdio

#include

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

int

integer

number

num

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

while

break

switch

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

puts()

print()

scanf()

echo()

31. Which symbol is used for comments in C?

// or /* */

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

int

string

float

char

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

float

char

long

int

34. What is a syntax error?

Mistake in program structure

Error after compilation

Error in logic

Run-time error

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

equals

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

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

Ends the program

Loops the function

Returns control to the caller

Prints a message

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

The function returns a number

The function returns no value

The function is private

The function has no parameters

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

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

char

void

int

float

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

Exit the loop

Restart the loop

End the program

Skip the current iteration

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

NULL

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

math.h

conio.h

stdlib.h

stdio.h

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

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

2.5

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

func int();

declare func();

int func;

int func();

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

;

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

mutable

static

auto

return

49. Which operator is used for assignment in C?

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

pow()

power()

exp()

sqrt()

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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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