Question

QUESTION 1

1. The statement char ch = ‘A’ would store in ch

   	A.	The character A
   	B.	ASCII value of A
   	C.	A along with the single inverted commas
   	D.	Both (a) and (b)

2 points   

QUESTION 2

1. Which of the following scanf() statement will you use to accept following variables?

   float gravity_a;

   double gravity_b;

   	A.	scanf("%f %lf", &gravity_a, &gravity_b);
   	B.	scanf("%LF %f ", gravity_a, gravity_b);
   	C.	scanf("%LF %LF ", &gravity_a, &gravity_b);
   	D.	scanf("%f %LF ", gravity_a, gravity_b);

2 points (Extra Credit)   

QUESTION 3

1. What will be the output of the following program?

   #include<stdio.h>

   int main()

   {

       float a=6.15528;

       printf("%2.1f\n", a);

       return 0;
   }

   	A.	6.00
   	B.	6.15
   	C.	6.2
   	D.	6

2 points (Extra Credit)   

QUESTION 4

1. What will be the output of the following statements?

   const int count = 10;

   count++;
   printf("%d", count);

   	A.	10
   	B.	11
   	C.	Run-time Error
   	D.	Compile-time Error

3 points   

QUESTION 5

1. What will be the output of the following program?

   #include<stdio.h>

   int main()

   {

         int a = 5, b = 2;

         printf("%d ", a+++b);

         printf("%d %d", a, b);

         return 0;

   }

   	A.	Results in Syntax Error
   	B.	Prints 7 6 2
   	C.	Prints 8 6 2
   	D.	None of the above

Answer 1

QUESTION 1

The statement char ch = ‘A’ would store in ch

A.

The character A

The option A suits well, Char data type will store the character value in it, So ch will hold the Character A.

QUESTION 2

1. Which of the following scanf() statement will you use to accept following variables?

   float gravity_a;

   double gravity_b;

   A.

   scanf("%f %lf", &gravity_a, &gravity_b);

The option A suits well,

As the format for scanf to get the value of float is %f and the format for scanf to get the value double is %lf. so the correct format to get the input is A option.

QUESTION 3

1. What will be the output of the following program?

   #include<stdio.h>

   int main()

   {

       float a=6.15528;

       printf("%2.1f\n", a);

       return 0;
   }

   C.

   6.2

The option C suits well

The formatting of %2.1f will represent 2 digits before decimal point and one digit after decimal point in float data type.

Thus the option is C.

QUESTION 4

1. What will be the output of the following statements?

   const int count = 10;

   count++;
   printf("%d", count);

D.

Compile-time Error

The option D will be suitable.

count is declare as const - constant variable

As we can increment a constant variable, incrementing count will lead to compile time error of incrementing a read-only variable.

QUESTION 5

1. What will be the output of the following program?

   #include<stdio.h>

   int main()

   {

         int a = 5, b = 2;

         printf("%d ", a+++b);

         printf("%d %d", a, b);

         return 0;

   }

B.

Prints 7 6 2

The option B suits well,

As per the increment operator precedence a+++b will be executed as (a++) + (b) thus a will be incremented to 6.