Test 3 Answers

1. First operating system designed using C programming language.
   ANS: UNIX
2. Which of the following variable cannot be used by switch-case statement?
   ANS: float
3. The prototype of a function can be used to
   ANS: Declare a function
4. To print a double value which format specifier can be used?
   ANS: %lf
5. Which of the following is a logical operator?
   ANS: !, &&, ||
6. Which of the following is used in mode string to open the file in binary mode?
   ANS: b
7. Which of these is an invalid dataname?
   ANS: wd-count
8. Which of the following is the correct usage of conditional operators used in C?
   ANS: max = a>b ? a>c?a:c:b>c?b:c
9. Which of the following data type uses %e format specifier?
   ANS: float or double
10. Which of the following format specifier is used for unsigned char?
    ANS: %c

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