True / False Questions

Question 1 :

A union cannot be nested in a structure


A). True
B). False
Answer : Option B

Question 2 :

Nested unions are allowed


A). True
B). False
Answer : Option A

Question 3 :

Bit fields CANNOT be used in union.


A). True
B). False
Answer : Option B

Explanation :

The following is the example program to explain "using bit fields inside an union".

#include < stdio.h >

union Point
{
  unsigned int x:4;
  unsigned int y:4;
  int res;
};

int main()
{
   union  Point pt;

   pt.x = 2;
   pt.y = 3;
   pt.res = pt.y;

   printf("\n The value of res = %d" , pt.res);

   return 0;
}
// Output: The value of res = 3


Question 4 :

one of elements of a structure can be a pointer to the same structure.


A). True
B). False
Answer : Option A

Question 5 :

A structure can be nested inside another structure.


A). True
B). False
Answer : Option A