Examination questions on C introduction paper-2

1.  What is the error message/output in the following program?

                void main( )

                {

                clrscr( )

                    printf(“Welcome”);

} 
a)   I don’t know
b)  Semicolon missing 
c)  Welcome
d)  Statement missing

2. Check the below program

main( )

                {

                     printf(“%d”,a/0));

                }

a)       Division by Zero (Warning)

b)       Undefined Symbol ‘a’ (Error)

c)       0 (Output)

d)       None of the above

3. Input function in ‘C’

a)       printf() & scanf( )                  

b)  scanf( ) & stdio.h                            

c)  scanf( )              

d)  All the Above

4. Display the output

                main( )

                {

                printf(“Welcoem to ‘C’ language”);

                }

a)       Welcome to ‘C’ language

b)       Welcome to “C” language

c)       Welcoem to ‘C’ language

d)       Welcoem to ‘C’ language.

5. “stdio.h” and “conio.h” are often called as

a)    Pre-defined functions          

 b)  Library functions             

c)  Library files      

d)  Only C compiler knows 

6. Which of the following is used to clear the output screen?

a)   clearscr()           

b) clearscreen()             

c) clrscr()           

d) clrscreen()

7. Division by 0 gives

a)  Compiler error   

b) Runtime error          

c) Assembler error     

d)None of the Above

8. Which of the following denote special operators in C?

a)      ?:                       

b)  ,                               

c)  >                              

d)  None of the Above

9. Which of the following denote invalid character constants in C?

a)      's'          

b). '$'                 

c). 'E'                

d). 'wer'

10. The long integer is denoted as

a)      l                        

b)  ld                  

c)  Any of A or B                       

d) None of the Above

11. Relational operator in C compares two

a)   Operands           

b) operators       

c). Both A and B            

d). None of the Above

12. Which of the following functions can be used to enter an integer in C program?

a)    getche               

b). gets              

c). scanf            

d). None of the Above

13. What is the Boolean value of a false statement resulting in a C program?

a)     1                       

b)  0                 

 c)  -1                 

d)  None of the Above

14. What is the output of the following program?

main()

{

     int a=10,b=25;

     a=b++ + a++;

     b= ++b + ++a;

     printf(“%d%dn”,a,b);

}

a)    35 65                 

b)  36 64                        

c)  37 64                        

d)  34 64

15. What is the output of the following program?

main()

{

     char t1[]=“Exforsys”;

     char t2[]= “Training”;

     printf(“%s”,t1);

}

a)     E                     

b)  Exforsys                   

c). NULL                      

d). Exforsys Training

16. The modifier used for horizontal tab is

a)  h           

b) ht                 

c) t                   

d) th

17. What is the output of the statement?

printf("Exforsys Training \nis \n Very Good");

a)      Exforsys

            Training

             is Very Good

b)      Exforsys Training

             is Very Good

c)      Exforsys Training is Very Good

d)      Exforsys Training

             is

            Very Good

  

18. The code used for denoting unsigned decimal integer in scanf is

a)      %d                    

b)  %u                           

c)  %ud                                     

d)  None of the Above

19. Which takes the first precedence in evaluation among the following operators?

a)    ||                        

b)  !                               

c)  &&            

d)  All the Above has equal precedence

20. The unsigned char have maximum value of

a)     128                    

b)  300                           

c)  255               

d)  240

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