Control Instructions

The modulus operator cannot be used with a long double.

A:

True

B:

False

C:

D:

Answer: A

fmod(x,y) - Calculates x modulo y, the remainder of x/y.
This function is the same as the modulus operator. But fmod() performs floating point or long double divisions.

📖

If scanf() is used to store a value in a char variable then along with the value a carriage return(\r) also gets stored it.

A:

True

B:

False

C:

D:

Answer: B

No, the carriage return tells the compiler to read the input from the buffer after ENTER key is pressed.

📖

A short integer is at least 16 bits wide and a long integer is at least 32 bits wide.

A:

True

B:

False

C:

D:

Answer: A

The basic C compiler is 16 bit compiler, below are the size of it's data types
The size of short int is 2 bytes wide(16 bits).
The size of long int is 4 bytes wide(32 bits).

📖

Which of the following sentences are correct about a switch loop in a C program?

1:	switch is useful when we wish to check the value of variable against a particular set of values.
2:	switch is useful when we wish to check whether a value falls in different ranges.
3:	Compiler implements a jump table for cases used in switch.
4:	It is not necessary to use a break in every switch statement.

A:

1,2

B:

1,3,4

C:

2,4

D:

2

Answer: B

No answer description is available. Let's discuss.

📖

Which of the following statements are correct about the below program?

#include<stdio.h>
int main()
{
    int n = 0, y = 1;
    y == 1 ? n=0 : n=1;
    if(n)
        printf("Yes\n");
    else
        printf("No\n");
    return 0;
}

A:

Error: Declaration terminated incorrectly

B:

Error: Syntax error

C:

Error: Lvalue required

D:

None of above

Answer: C

No answer description is available. Let's discuss.

📖

Questions for: Control Instructions