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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 keyword is used to exit a loop early?

break

exit

return

stop

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

static

constant

define

const

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

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

while

switch

break

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

.cpp

.py

.java

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

Prints a message

Returns control to the caller

Loops the function

Ends the program

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

exp()

pow()

power()

sqrt()

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

int &ptr;

pointer int ptr;

int *ptr;

int ptr;

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

The function returns no value

The function has no parameters

The function returns a number

The function is private

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

math.h

conio.h

stdio.h

stdlib.h

11. What is a syntax error?

Mistake in program structure

Error in logic

Run-time error

Error after compilation

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

Both A and B

const

static

#define

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

scanf()

puts()

echo()

print()

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

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

start()

main()

init()

begin()

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

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

printf("Hello World");

echo("Hello World");

print("Hello World");

cout << "Hello World";

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

int

char

float

void

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

NULL

20. How do you declare a variable in C?

var x;

int x;

declare x;

variable x;

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

stdlib.h

math.h

string.h

conio.h

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

while

do-while

for

None

23. Which operator is used to dereference a pointer?

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

auto

static

mutable

return

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

8 bytes

2 bytes

4 bytes

1 byte

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

int arr[] = new int[10];

int arr(10);

int arr[10];

array int arr[10];

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

function

No keyword needed

define

func

28. Which of the following is a relational operator?

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

int

char

long

float

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

int func();

declare func();

int func;

func int();

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

float

2value

value_2

@count

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

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

number

integer

num

int

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

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

Error

1020

10 + 20

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

conio.h

string.h

math.h

stdlib.h

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

equals

38. Which operator is used for assignment in C?

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

typedef

struct

new

define

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

int

float

string

char

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

input()

getc()

read()

getchar()

42. Which symbol is used for comments in C?

// or /* */

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

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

3.0

3.33

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

#import stdio.h

include stdio

using stdio.h

#include

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

;

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

Skip the current iteration

End the program

Restart the loop

Exit the loop

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

2.5

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

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

Error

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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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