Multiple Choice Questions On C Language - Set 2

Following are the multiple choice questions on C Language with answers. Following are the important questions for competitive exams point of view. Appropriate explanations are also given with the answers.

1) Which of the following is not true in context of C language ?

1. It is array of characters
2. Last character of character array is always \0
3. C inserts the null character automatically
4. Any string in C can be read by the function getchar()

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Answer =  B and C
Explanation: No Explanation 

2)  Which of the following operations can not be perform on pointers in C ?

1. Addition of two pointers
2. Subtraction of a number from a pointer
3. Subtraction of one pointer from another
4. Addition of a number to a pointer

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Answer = A
Explanation: No Explanation

3) What will be the output of following program ?
             main( )
            {
                   static char a[]="BOMBAY"
                   char *b="BOMBAY";
                   printf("\n%d%d",size of(a),size of (b));
            } 

1. a=7, b=7
2. a=7, b=2
3. a=2, b=7
4. a=7, b=0

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Answer = C
Explanation: No Explanation

4) What is the output of  C statement 7.5 % 3 ?

1. 1.5
2. 1
3. No output
4. Error

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Answer = D
Explanation: No Explanation 

5) Any program in C has access to three standard files?

1. standard input file, standard output file, standard error file
2. stdin, stdout, stderr
3. keywords, screen, stderr
4. All of above
5. None of above

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Answer = B
Explanation: No Explanation 

6) An identifier in C  ?

1. is a name of thing such as variable and function
2. is made up of letters, numerals and the underscore
3. can contain both uppercase and lowercase letters
4. All of above
5. None of above

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Answer = D
Explanation:No  Explanation 

7) The single character input/output functions are  ?

1. scanf( ) and printf( )
2. getchar( ) and printf( )
3. scanf( ) and putchar( )
4. getchar( ) and putchar( )
5. None of above

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Answer = D
Explanation: No Explanation 

8) Precedence determines which operator ?

1. is evaluated first
2. is most important
3. is fastest 
4. Operates on the largest number
5. None of above

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Answer = A
Explanation: No Explanation 

9) In C, the NULL statement which does nothing is just ?

1. a.,
2. ;
3. :
4. .

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Answer = B
Explanation:No Explanation 

10) The two operators && and || are ?

1. arithmetic operators
2. equality operators
3. logical operators
4. relational operators
5. None of above

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Answer = D 
Explanation: No Explanation 

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