6. What will be the output of the following C code?
   

   #include <stdio.h>
       union U
       {
           int m;
           char s;
       };
       int main()
       {
           union U u, uu;
           u.m = 65;
           uu.s = 32;
           printf("%d\n", u.s);
       }
   

1. 1. Compilation Error

   
   
   

   2. Garbage value

   
   
   

   3. 65

   
   
   

   4. 32

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   65

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7. What will be the output of the following C code?
   

   #include <stdio.h>
       union
       {
           int n;
           char ch;
       }U;
       int main()
       {
           U.ch = 201;
           printf("%d\n", sizeof(U));
       }
   

1. 1. sizeof(int) + sizeof(char)

   
   
   

   2. sizeof(char)

   
   
   

   3. Compilation Error

   
   
   

   4. Depends on the compiler

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   sizeof(char)

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8. What will be the output of the following C code?
   

   #include <stdio.h>
       union
       {
           int n;
           char ch;
       }U;
       int main()
       {
           U.n = 10;
           printf("%d\n", sizeof(U));
       }
   

1. 1. sizeof(int)

   
   
   

   2. Depends on the compiler

   
   
   

   3. sizeof(int) + sizeof(char)

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   sizeof(int)

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9. What will be the output of the following C code?
   

   #include <stdio.h>
       union Employee
       {
           int N;
           float F;
       };
       void main()
       {
           union Employee emp;
           emp.N = 26;
           printf("%d", emp.N);
       }
   

1. 1. Garbage value

   
   
   

   2. Compilation Error

   
   
   

   3. 26

   
   
   

   4. Undefined behaviour

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   26

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10. What will be the output of the following C code (Assuming size of int and float is 4)?
    

    #include <stdio.h>
        union
        {
            int Nval;
            float Fval;
        } U;
        void main()
        {
            printf("%d", sizeof(U));
        }
    

1. 1. 32

   
   
   

   2. 16

   
   
   

   3. 8

   
   
   

   4. 4

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   4

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