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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. What is a syntax error?

Run-time error

Mistake in program structure

Error in logic

Error after compilation

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

NULL

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

2 bytes

4 bytes

8 bytes

1 byte

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

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

Error

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

equals

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

new

struct

define

typedef

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

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

No keyword needed

function

define

func

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

begin()

init()

start()

main()

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

None

while

do-while

for

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

int

string

char

float

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

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

return

exit

break

stop

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

cout << "Hello World";

print("Hello World");

echo("Hello World");

printf("Hello World");

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

int func();

int func;

func int();

declare func();

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

;

18. Which operator is used for assignment in C?

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

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

include stdio

#import stdio.h

#include

using stdio.h

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

getchar()

input()

getc()

read()

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

2.5

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

break

switch

while

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

End the program

Restart the loop

Skip the current iteration

Exit the loop

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

Prints a message

Returns control to the caller

Loops the function

Ends the program

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26. Which operator is used to dereference a pointer?

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

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

math.h

stdio.h

conio.h

stdlib.h

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

sqrt()

power()

exp()

pow()

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

3.33

3.0

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

constant

define

const

static

32. Which of the following is a relational operator?

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

int arr[10];

int arr[] = new int[10];

int arr(10);

array int arr[10];

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

integer

int

number

num

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

The function returns a number

The function has no parameters

The function is private

The function returns no value

36. Which symbol is used for comments in C?

// or /* */

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

int

char

void

float

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

float

@count

value_2

2value

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

.py

.cpp

.java

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

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

int ptr;

int *ptr;

pointer int ptr;

int &ptr;

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

static

#define

Both A and B

const

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

return

mutable

static

auto

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

echo()

print()

scanf()

puts()

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

math.h

string.h

stdlib.h

conio.h

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

string.h

stdlib.h

conio.h

math.h

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

10 + 20

Error

1020

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

int

float

long

char

49. How do you declare a variable in C?

var x;

variable x;

declare x;

int x;

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

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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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