C Online Test

1. To Round off a float value to an integer value, what is the correct method?

2. What is the output of the following program?

#include
int main()
{
printf(“%f\n”, log(46.0));
return 0;
}

3. What punctuation is used to indicate beginning and end of a code block?

4. What is answer for the following code:

Struct x
{
int i;
char c;
}
union y{
struct x a;
double d;
};
printf("%d",sizeof(union y));

5. enum x {a=1,b,c,d,f=60,y}
printf(“%d”,y);

6. Which if statement is correct to find Leap Year!

1. if ( year%400 == 0)
..........
2. else if ( year%100 == 0)
..........
3. else if ( year%4 == 0 )
..........
4. else
..........

7. What is the output of the following programme? If we Enter Input as: 6?
#include
int main()
{
int c, n, fact = 1;
printf("Enter a number to calculate it's factorial\n");
scanf("%d", &n);

for (c = 1; c <= n; c++) fact = fact * c; printf("Factorial of %d = %d\n", n, fact); return 0; }

8. What should be the out of the below C programme?

#include<stdio.h>

main()
{
int i=1;

while ( i++<=5)
prinf("%d ", i++);

}

9. Which statment is true for C Language?

10. The C Compiler generates which file?

11. What are the real data types in C language?

12. What is the problem with the below code?

#include
int main()
{
printf( "Declare x next" );
int x;

return 0;
}