C Enums Quiz Online Practice Test

1. A custom data type that assigns names to integral constants is known as ____________

2. What will be the result of executing the following C code?
#include <stdio.h>
enum colour
{
blue, red, yellow
};
int main()
{
enum colour c;
c = yellow;
printf("%d", c);
}

3. Identify the mistake (if any) in the following C code:
#include <stdio.h>
enum hello
{
a, b, c;
};
int main()
{
enum hello m;
printf("%d", m);
}

4. String handling functions like strcmp(), strcpy(), etc., can be utilized with enumerated types.

5. Identify the incorrect statement regarding enums.

6. What will the following C code output?
#include<stdio.h>
enum sanfoundry
{
a=2, b=3.56
};
enum sanfoundry s;
main()
{
printf("%d%d", a, b);
}

7. What will the following C code output?
#include<stdio.h>
enum class
{
a, b, c
};
enum class m;
main()
{
printf("%d", sizeof(m));
}

8. What will the output of the following C code be?
#include<stdio.h>
enum hi {a, b, c};
enum hello {c, d, e};
main()
{
enum hi h;
h = b;
printf("%d", h);
return 0;
}

9. What will be the output of the following C code?
#include<stdio.h>
enum sanfoundry
{
a, b, c = 5
};
enum sanfoundry s;
main()
{
c++;
printf("%d", c);
}

10. What will be the output of this C code?
main()
{
enum result {pass, fail};
enum result s1, s2;
s1 = pass;
s2 = fail;
printf("%d", s1);
}

11. What will be the output of this C code?
#include <stdio.h>
enum example {a = 1, b, c};
enum example example1 = 2;
enum example answer()
{
return example1;
}

int main()
{
(answer() == a)? printf("yes"): printf("no");
return 0;
}

12. What will be the output of this C code?
#include<stdio.h>
#define MAX 4
enum sanfoundry
{
a, b = 3, c
};
int main()
{
if (MAX != c)
printf("hello");
else
printf("welcome");
}

13. Arithmetic operations like addition, subtraction, multiplication, and division can be performed on enumerated constants.

14. Identify any errors (if present) in the following code:
#include<stdio.h>
enum sanfoundry {
a, b, c
};
enum sanfoundry g;
main() {
g++;
printf("%d", g);
}

15. What will be the output of the following C code when the input provided is 2?
#include<stdio.h>
enum day {
a, b, c = 5, d, e
};
main() {
printf("Enter the value for a: ");
scanf("%d", &a);
printf("%d", a);
}

16. What will be the output of the following C code when executed on a 32-bit platform?
#include <stdio.h>
enum sanfoundry {
c = 0,
d = 10,
h = 20,
s = 3
} a;

int main() {
a = c;
printf("Size of enum variable = %d bytes", sizeof(a));
return 0;
}

17. What will be the output of the following C code snippet?
#include<stdio.h>
enum sanfoundry {
a = 1, b, c, d, e
};
int main() {
printf("%d", b * c + e - d);
}

18. What will be the output of the following C program?
#include<stdio.h>
enum sanfoundry {
a = 1, b
};
enum sanfoundry1 {
c, d
};
int main() {
enum sanfoundry1 s1 = c;
enum sanfoundry1 s = a;
enum sanfoundry s2 = d;
printf("%d", s);
printf("%d", s1);
printf("%d", s2);
}