C Programming - Floating Point Issues

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"We cannot solve our problems with the same thinking we used when we created them."

- Albert Einstein

What will be the output of the program?

#include<stdio.h>
int main()
{
    float a=0.7;
    if(a < 0.7)
        printf("C\n");
    else
        printf("C++\n");
    return 0;
}

A.	C	B.	C++
C.	Compiler error	D.	Non of above

What will be the output of the program?

#include<stdio.h>
int main()
{
    float *p;
    printf("%d\n", sizeof(p));
    return 0;
}

A.	2 in 16bit compiler, 4 in 32bit compiler
B.	4 in 16bit compiler, 2 in 32bit compiler
C.	4 in 16bit compiler, 4 in 32bit compiler
D.	2 in 16bit compiler, 2 in 32bit compiler

What will be the output of the program?

#include<stdio.h>
int main()
{
    float fval=7.29;
    printf("%d\n", (int)fval);
    return 0;
}

A.	0	B.	0.0
C.	7.0	D.	7

What will be the output of the program?

#include<stdio.h>
#include<math.h>
int main()
{
    printf("%f\n", sqrt(36.0));
    return 0;
}

A.	6.0	B.	6
C.	6.000000	D.	Error: Prototype sqrt() not found.

What will be the output of the program?

#include<stdio.h>
#include<math.h>
int main()
{
    printf("%d, %d, %d\n", sizeof(3.14f), sizeof(3.14), sizeof(3.14l));
    return 0;
}

A.	4, 4, 4	B.	4, 8, 8
C.	4, 8, 10	D.	4, 8, 12