Programming in C MCQ - Constants, Variables and Data Types

6 The program fragment
int i = 263 ;
putchar (i) ;
prints

A
263
B
ASCII equivalent of 263
C
rings the bell
D
garbage

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263 in binary form is 100000111. If one tries to print an integer as a character, only the last 8 bits will be considered - the rest chopped off. So, in this case, the ASCII value of 00000111 will be printed, Look in the ASCII table. It is ringing a bell!

7 int i = 5; is a statement in a C program.

A
during execution, value of i may change but not its address
B
during execution both the address and value may change
C
repeated execution may result in different addresses for i
D
i may not have an associated address

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8 If the declaration unsigned c:5; is replaced by unsigned: 6; then

A
it results in a syntax error
B
it is meaningless
C
compiler will give a new name for the field
D
none of these

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9 The value of ab if ab & 0 x 3f equals 0 x 27 is

A
047
B
0 x 0 f
C
0 x f3
D
0 x 27

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Let ab be 0 x MN. N&f should yield 7 i.e. N & 1111 should produce 0111. So, N should be 0111, i.e., 7. Similarly, M can be found to be 2. So, ab is 0 x 27.

10 In C programming language, if the first and the second operands of operator + are of types int and float, respectively, the result will be of type

A
int
B
float
C
char
D
long int

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