C Fundamentals MCQs

Question 1

Which header file should be included for input and output functions in C?

Accepted Answer

Question 2

What is the purpose of the 'break' statement in C?

Accepted Answer

Exit a loop

Answer

End the program

Answer

Skip the loop

Answer

Exit a function

Question 3

Which of the following is not a valid C keyword?

Accepted Answer

printf

Answer

main

Answer

if

Answer

for

Question 4

What is the maximum number of arguments that can be passed to a C function?

Accepted Answer

No limit

Answer

10

Answer

255

Answer

127

Question 5

Which operator is used to access the value stored at a pointer address in C?

Accepted Answer

*

Answer

&

Answer

->

Answer

.

Question 6

What does the 'void' keyword indicate in a C function declaration?

Accepted Answer

Empty return type

Answer

Integer return

Answer

Floating-point return

Answer

String return

Question 7

Which character is used to represent a comment in C code?

Accepted Answer

//

Answer

#

Answer

/*

Answer

;

Question 8

What is the purpose of the 'continue' statement in a loop?

Accepted Answer

Skip the current iteration

Answer

Skip the loop

Answer

Exit the program

Answer

Exit the loop

Question 9

What is the range of values that can be stored in an 'int' data type in C?

Accepted Answer

-2147483648 to 2147483647

Answer

-32768 to 32767

Answer

0 to 65535

Answer

0 to 4294967295