Input Output in C MCQs Quiz-1

 

Input Output in C MCQs Quiz -1. This is the 1st post of MCQs | online quiz for ICS Part-II || 2nd Year Computer Science Chapter No.10. MCQ Questions along with their answers to this quiz are important for the final examination, ECAT, and all entry tests for all universities of Pakistan.

It is tried best to make the important MCQs (Multiple Choice Questions) from this chapter (Input / Output) with answers. This post covers input / output functions, format specifier, field width specifiers, escape sequence, getch(), and getche(). This is the 1st post for the online quiz of this chapter, the remaining MCQs along with answers will be posted soon InshaAllah, so stay tuned for more quizzes.

The following may relate to you!

➤Input / Output - MCQs Set-II

➤Input / Output - Exercise Programs

➤Input / Output - Short Questions and Answers

Chap#10: Input / output  || MCQs Online Quiz -1

 

1. A format specifier always begins with?
   1.   &
   2.   %
   3.   #
   4.   $
2. An uninitialized variable contains?
   1.   0
   2.   null
   3.   garbage
   4.   none of theses
3. Consider printf(“%8.3f”, a);
   Where a=-.786, the output will be?
   1.   -0.786
   2.   \(\Box\Box\)-0.786
   3.   -.786
   4.   \(\Box\Box\Box\)-.786
4. printf(“count=%d”,result); optional variable used in statement is?
   1.   count=%d
   2.   result
   3.   count=%d + result
   4.   none of these
5. Following are valid escape sequence except?
   1.   \f
   2.   \r
   3.   \n
   4.   \u
6. Following function is preferred for character manipulation?
   1.   scanf()
   2.   getch()
   3.   getche()
   4.   getche() + getch()
7. Following functions requires arguments except?
   1.   scanf
   2.   getch()
   3.   getche()
   4.   getche() + getch()
8. Output of the given code if user enters “d”?
   main()
   {char ch;
   ch=getche();
   printf(“%d”,ch);}
   1.   100
   2.   d
   3.   error
   4.   99
9. The getch() is a___ function?
   1.   built-in
   2.   user defined
   3.   keyword
   4.   none of these
10. The getche() can work with ___ type of data?
    1.   character
    2.   numeric
    3.   character + numeric
    4.   none of these
11. The input and output functions are provided by?
    1.   I/O file
    2.   I/O library file
    3.   compiler
    4.   none of these
12. The number of columns specified to print any value on the screen refers?
    1.   field width
    2.   format specifier
    3.   field specifier
    4.   field width specifier
13. To read multiple characters from user which function suitable?
    1.   scanf()
    2.   getch()
    3.   getche()
    4.   none of these
14. What is total width used in statement given below?
    printf(“ans=%6.2f”,result);
    1.   2
    2.   12
    3.   6
    4.   none of these
15. Output of statement if a = -390?
    printf(“%5d”,a);
    1.   -0397
    2.   390
    3.   \(\Box\)-390
    4.   none of these