Online C Programming Test – Free MCQ’s to test your C Skills

Which of the following has a global scope in the program?

Predict the output of the following code segment:
// Add stdio.h header file in below code

int main()
{
int array[10] = {3, 0, 8, 1, 12, 8, 9, 2, 13, 10};
int x, y, z;
x = ++array[2];
y = array[2]++;
z = array[x++];
printf(“%d %d %d”, x, y, z);
return 0;
}

Which of the following statements about functions is false?

What is the correct way of treating 9.81 as a long double?

Which function would you use to convert 1.98 to 1?

Which of the following statements about the null pointer is correct?

Which of the following statements about unions is incorrect?

What is the range of double data type for a 16-bit compiler?

Predict the output of the following code segment:
// Add stdio.h header file in below code

int main()
{
int x = 6;
int y = 4;
int z;
if(!x >= 5)
y = 3;
z = 2;
printf(“%d %d”, z, y);
return 0;
}

Predict the output of the following code segment:
// Add stdio.h header file in below code

int main()
{
int a,b,c;
a = b = c = 10;
c = a++ || ++b && ++c;
printf(“%d %d %d”,c, a, b);
return 0;
}

Predict the output of the following code segment:
// Add stdio.h header file in below code

#define PRODUCT(x) (x*x*x*x)
int main()
{
int x = 2;
int result = PRODUCT(x++);
printf(“%d %d”, x, result);
return 0;
}

Predict the output of the following code segment:
// Add stdio.h header file in below code

int main()
{
unsigned int a = -1;
int b = ~0;
int result;
if (b == a)
printf(“equal”);
else
printf(“unequal”);
return 0;
}