1. PlacementQuestion
2. C Interview Questions
3. Online Test for C

Online Test for C

1. Select worng statement for constructing C variable
   A variable name is any combination alphabets, digits or underscores
   First character in variable must be alphabets and underscore
   Any special symbol can be used in variable name
   No commas or blanks are allowed within a variable name

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2. Find Error/Output in follwing code:

                                
int main() {

  char p[] = "%dn";

  p[1] = 'c';

  printf(p, 65);

  int k=40, *a;

  a = &k;

  (*a)++; k++;

  printf("n k=%d",k); 

}
                                

c k=40
b k=44
A k=42
a k=40

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3. Which of the following has compilation error in C?
   int n = 32;
   char ch = 65;
   float f = (float) 3.2;
   None of the above

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4. A zero value is considered to be false and a non-zero value is considered to be true.
   True
   False

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5. Every C Program must have one function called?
   switch()
   main()
   struct()
   for()

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6. Find Error/Output in follwing code:

                                
struct

{

  int si;

  double d;

  float cp;

} s;

void

main ()

{

  printf ("%d, %d, %d",  sizeof (s.si), sizeof (s.d), sizeof (s.cp));

}
                                

6, 10, 8
4, 8, 4
2, 4, 4
2, 8, 8

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7. Find Error/Output in follwing code:

                                
main() {

    int a = 10;      

    if ((fork ( ) == 0))      

    a++;      

    printf ("%dn", a ); 

}
                                

10 and 11
10
11
11 and 11

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8. Find Error/Output in follwing code:

                                
int main ()

{

  int a = 5;

  float b;

  printf ("%d", sizeof (++a + b));

  printf (" %d", a);

  return 0;

}
                                

6 5
5 6
4 5
5 4

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9. Which is the right way to declare constant in C?
   int constant var =10;
   int const var = 10;
   const int var = 10;
   B & C Both

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10. Find Error/Output in follwing code:

                                
main() {

 int i = 2, *j;

 j = &i;

 printf("%d", i**j*i+*j); 

} 
                                

Syntax error due to Invalid expression in printf
Print junk value
16
10

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