1. function tolower(c) defined in library
a) Ascii character set
b) Unicode character set
c) Ascii and utf-8 but not EBSIDIC character set
d) Any character set
Answer
Answer: d [Reason:] None.
2. What is the output of the below code considering size of short int is 2, char is 1 and int is 4 bytes?
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#include <stdio.h> -
int main()
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{ -
short int i = 20;
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char c = 97;
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printf("%d, %d, %dn", sizeof(i), sizeof(c), sizeof(c + i));
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return 0;
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}
a) 2, 1, 2
b) 2, 1, 1
c) 2, 1, 4
d) 2, 2, 8
Answer
Answer: c [Reason:] None.
3. Which type conversion is NOT accepted?
a) From char to int
b) From float to char pointer
c) From negative int to char
d) From double to char
Answer
Answer: b [Reason:] Conversion of a float to pointer type is not allowed.
4. What will be the data type of the result of the following operation?
(float)a * (int)b / (long)c * (double)d
a) int
b) long
c) float
d) double
Answer
Answer: d [Reason:] None.
5. Which of the following type-casting have chances for wrap around?
a) From int to float
b) From int to char
c) From char to short
d) From char to int
Answer
Answer: b [Reason:] None.
6. Which of the following typecasting is accepted by C?
a) Widening conversions
b) Narrowing conversions
c) Widening & Narrowing conversions
d) None of the mentioned
Answer
Answer: c [Reason:] None.
7. When do you need to use type-conversions?
a) The value to be stored is beyond the max limit
b) The value to be stored is in a form not supported by that data type
c) To reduce the memory in use, relevant to the value
d) All of the mentioned
Answer
Answer: d [Reason:] None.
