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C - Language Multiple Choice Questions ( 21 - 30)

21. Which of the below is not a correct declaration in C - Language ?

A. int y = x + 45, int x;
B. int x, int y = x + 45;
C. int x, int y;
D. int x = 35, int y;

22. Which of the following statements execute with out an error ?

A. float p = q = r = 23.45;
B. int x,y,z;
    x = y = z = 7628
C. float p,q,r;
     p = q = r = 23.45;
D. None of these.

23. Which of the following arithmetic statement is valid ?

A. a = b(cd).e(fg)     B. a = b*(c*d)*e(f*g)     C. b(c*d).e(f*g)      D. None of these.

24. Identify the false statement.

A. An arithmetic operation between an integer and integer gives an integer value.
B. An arithmetic operation between a real and real always gives a real value.
C. An arithmetic operation between an integer and real always gives a real result.
D. An arithmetic operation between an integer and real always gives an integer result.

25.  What will be the values of a and b after execution of this?

       void main()
       {
              int i, float b;
              a  = 78.5;
              b = 28;
              printf( "%d \t %f ", a,b);
        }

A. a =0, b = 0
B. a = 78.5, b = 28
C. a = 78, b = 28.0000
D. Error;

26. consider the expression (A+B) + ( C*D) + (E+F), which operation is evaluated first?

A. A+B     B. C*D     C. E+F      D. All at once

27. Which of the following statements is wrong.

A. ugc = 54345.454;
B. net = 'U' * 'G' * 'C';
C. cbse =  34.4 * 2.1;
D. 34 + 45 = ugcnet;

28. The value of X after evaluation of  expression X = 45/22 * (3.14+4) * 5/2

A. 36.511     B. 3.6511     C. = 45.12      D. 12.45

29. Hierarchy decides which operator

A. is most important      B. is used first      C. is fastest     D. Operates last

30. what will be the value of  X after evaluation of expression  X = 5/4.5 ( If X declared as float)

A. 0     B. Cannot be determined       C. 1.1111       D. None of the above




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