How many times does the while loop run?

#include <stdio.h>
int main()
{
  int i = 1;
  while (i <= 5)
    printf("%d ", i++);
  putchar('\n');
  return 0;
}

Which of these statements is/are true?

The principles of top–down design and structured programming dictate that a program should be divided into a main module and its related modules. 

The address operator (&) is used to tell the compiler to store data at an address. 

What is the output of the following program that compiles correctly? (Hint: When evaluating logical operators, the compiler ignores the remainder of the expression when it is sure of the final answer at any point of evaluation of the sub-expression - something often referred to as "short-circuit evaluation". This is a cryptic hint, I know, but enjoy unravelling it and discovering its meaning and implication!)

#include <stdio.h>

int main()
{
  int a= -2, b= -1, c = 0, d = 1, e = 2;
  int r1, r2;
  r2 = a++ || ++b || c++ || ++d || e;   
  r1 = a && b++ && ++c && d++ && ++e;  
  printf("%d %d %d\n", r1,r2,a+b+c+d+e);
  return 0;
}

What would be the output if the following code segment is compiled and run?

int a=100;
if (a >= 10)
   printf("Theory\n");
else if (a >= 20)
   printf("Lab\n");
else if (a >= 30)
   printf("Quiz\n");

Which

of the following statements about the sizeof() operator in C is true?

Given

the formula for motion

Which of these data types is/are detected by the

compiler as erroneous?