Multiple Choice Question in C/C++ Language

1) The C language consists of ____ number of keywords.

A] 32 

B] 40 

C] 24 

D] 56

2) Which of the following is a keyword used for a storage class?

A] Printf 

B] external 

C] auto 

D] scanf

3) The prototype of the function in the header file is

A] Stdio.h 

B] stdlib.h 

C] conio.h 

D] io.h

4) Preprocessor Directives are used for -

A] Macro Expansion 

B] File Inclusion

C] Conditional Compilation 

D] All of these

5) Which operator has the lowest priority?

 A] ++ 

B] % 

C] + 

D] ||

6) The type cast operator is

A] (type) 

B] cast() 

C] // 

D] “ “

7) File manipulation functions in C are available in which header file?

A] streams.h 

B] stdio.h 

C] stdlib.h 

D] files.h

8) Which pair of functions below are used for the single character I/ O?

A] getchar() and putchar() 

B] scanf() and printf()

C] input() and output() 

D] Non of these

9) Which function is used to read the character as you type?

A] getchar() 

B] getch() 

C] getche() 

D] Both (B) and (C)

10) What is the output of this program ?

void main() 

{

int a=b=c=10;

a=b=c=50;

printf(“\n %d %d %d”,a,b,c); 

}

A] 50 50 50 

B] Compile Time Error 

C] 10 10 10 

D] Three Gaebage Value

11) Which format specifier is used to print the values of the double type variable

A]%If 

B]%Id 

C]%Iu 

D] %f 

12) What will be the output of the following program?

 void main ( ) 

{

 double x=28;

 Int r;

 r= x%5;

 printf (“\n r=%d”, r); 

}

A] r= 3 

B] Run time Error 

C]Compile time Erroe 

D]None of the Above

13) What the following function call mean?

Strcpy(s1 , s2 );

A]copies s1 string into s2 

B]copies s2 string into s1

C]copies both s1 and s2 

D] None of these

14) What will be the output of the following program?

 Void main( ) 

{

 int x []= {10,20,30,40,50};

 print f (“ \n %d %d %d %d “, x [4] ,3[x] ,x[2] ,1[x] ,x[0] ); 

}

 A]Error 

B]10 20 30 40 50 

C]50 40 30 20 10 

D]None of these

15) Which of the following is not s keyword of ‘C’ ?

A] auto 

B] register 

C] int 

D] function

16) What will be the out put ?

void main ( ) 

{

 char a[] = “INFO” ;

 a + +;

 printf (“ \n %s”, a); 

}

A] Error 

B] INFO 

C] NFO 

D] None of these

17) Which of the following operator has the right to left associativity?

A] && 

B] // 

C] % 

D] sizeof

18) What wiil be the out put ?

void main ( ) 

{

 int I ;

 I=0x10+ 010+10;

 Printf (“\nx=%x”, i); 

}

A] x= 34 

B] i= 34 

C] I = 22 

D] Error

19) Explicit type conversion is known as

A] conversion 

B] disjunction 

C] separation 

D] casting

20) What will be the output ?

#define SQUARE(X) X * X

void main ( ) 

{

 printf (“\n Square = %d” , SQUARE(10+2) ); 

}

A] Square = 144 

B] Square =32 

C] Square =122 

D]Square =12 

21) By default, a function returns a value of type

A] int 

B] char 

C] void 

D] None of these

22) What will be the value of x after executing the program ?

void main ( ) 

{

int x;

x = printf(“I See, Sea in C”);

printf(“\n x= % d” , x); 

}

A] x= 15 

B] x=2 

C] Garbage value 

D] Error

23) What is sizeof In ‘C’ ?

A] Operator 

B] Reserve Worf 

C] Both (A) and (B) 

D] Function

24) Study the following C program

 Void main ( ) 

{

 int a= 0;

 for ( ; a ;);

 a++;

}

What will be the value of the variable a, on the execution of the above program

A] 1 

B] 0 

C] –1 

D] None of these

25) Which is not keyword in ‘C’ ?

A] typedef 

B] const 

C] near 

D] complex