MCQs on Conditional Statements & Loops - C Programming Multiple Choice questions with answers

void main()
{ 
	int num = 0;
	do
	{
		- - num;
		printf (“%d”, num);
		num ++;
	}
	while (num >=0);	
}

marks = 80;
switch (marks)
{
	case 60:
	grade = ‘C’;
	break;
	case 70: 
	grade = ‘B’;
	break;
	case 80:
	grade = ‘A’;
	break;
	default:
	grade = ‘E’;
}

What is the value of ‘grade’ after the switch statement is executed?

switch (input)
{
	case ‘1’: printf (“one”);
	case ‘3’: printf (“three”);
	case ‘4’: printf (“five”);
	default: printf (“odd”); break;
}

for(digit = 0; digit < 9; digit++)
{
	digit = 2*digit;
	digit - -;
}

{
	int sum, index;
	index = 50;
	while (index > = 0) 
	{
		sum =sum/index;
		-index;
	}
} 

char x = ‘B’
switch (x) 
{
	case ‘A’ : printf (“a”);
	case ‘B’ : printf (“b”);
	default  : printf (“c”);
}