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ECAT Computer Getting Started with “C” Test Online

Mustansar KhanLast Updated: May 1, 2025

ECAT Computer Getting Started with “C” Test

ECAT Computer Science Chapter 18 Getting Started with “C” Online Test

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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ECAT Getting Started with “C” Test Online MCQs

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

sqrt()

exp()

power()

pow()

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

string.h

math.h

conio.h

stdlib.h

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

char

string

float

int

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

static

constant

define

const

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

static

auto

return

mutable

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

getc()

read()

getchar()

input()

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

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

Restart the loop

Skip the current iteration

End the program

Exit the loop

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

function

func

define

No keyword needed

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

Error

10 + 20

1020

11. How do you declare a variable in C?

variable x;

int x;

declare x;

var x;

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

equals

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

stdlib.h

string.h

math.h

conio.h

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

num

number

integer

int

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

while

for

None

do-while

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

exit

return

stop

break

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

static

Both A and B

const

#define

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

float

long

int

char

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

.java

.py

.cpp

20. Which of the following is a relational operator?

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

printf("Hello World");

echo("Hello World");

cout << "Hello World";

print("Hello World");

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

3.33

3.0

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

int func;

declare func();

func int();

int func();

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

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

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26. Which symbol is used for comments in C?

// or /* */

27. 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];

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

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

define

struct

typedef

new

30. What is a syntax error?

Mistake in program structure

Run-time error

Error after compilation

Error in logic

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

pointer int ptr;

int *ptr;

int &ptr;

int ptr;

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

33. Which operator is used to dereference a pointer?

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

echo()

scanf()

puts()

print()

35. Which operator is used for assignment in C?

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

#import stdio.h

using stdio.h

include stdio

#include

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

Error

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

switch

while

break

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

1 byte

8 bytes

2 bytes

4 bytes

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

NULL

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

start()

begin()

main()

init()

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

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

Ends the program

Loops the function

Prints a message

Returns control to the caller

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

2.5

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

;

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

@count

value_2

float

2value

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

stdio.h

conio.h

math.h

stdlib.h

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

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

The function is private

The function returns no value

The function returns a number

The function has no parameters

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

char

float

void

int

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Mustansar KhanLast Updated: May 1, 2025

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ECAT Computer Getting Started with “C” Test Online

ECAT Computer Getting Started with “C” Test

ECAT Computer Science Chapter 18 Getting Started with “C” Online Test

ECAT Getting Started with “C” Test Online MCQs

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ECAT Computer Getting Started with “C” Test

ECAT Computer Science Chapter 18 Getting Started with “C” Online Test

ECAT Getting Started with “C” Test Online MCQs

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