Quiz on Functions#1

Which of the following is not a library function but can be a user defined function?

• cos()
• sqrt()
• pow()
• add()

We use fucntions to reuse block of code. How many times, can you call a function?

• only one time
• 2 times
• Maximum of 10 times
• Any number of times

Which of the following is a correct format for declaration of function?

• return-type function-name(argument type);
• return-type function-name(argument type){}
• return-type (argument type)function-name;
• argument type function-name(return-type);

How many values can a C Function return at a time?

• Only one value
• maximum 2 values
• maximum 3 values
• maximum 8 values

Which of the following is one of the advantages of using Functions in the program?

• returning
• re-usability
• recording
• recovery

Which of the following library function can be used to evaluate a*a*a?

• cube(a)
• power(a,3)
• Mul(a,3)
• pow(a,3)

What is the output of this C code?

void foo();

void main()

{

void f();

f();

}

void foo()

{

printf("2 ");

}

void f()

{

printf("1 ");

foo();

}

• Compile Time Error
• 1 2
• 2 1
• Infinite Loop

The parameters used in a function definition are also called as __________

• Actual Arguments
• Formal Arguments
• Simple Arguments
• Simple Parameters

What will be the output?

#include<stdio.h>

float circle(int);

void main()

{

float area = 0 ;

int radius = 1 ;

area = circle ( radius ) ;

printf ( "\n%f", area ) ;

}

float circle ( int r )

{

float a ;

a = 3.14 * r * r ;

return ( a ) ;

}

• 6.28
• 3.14
• 3
• 2.14

What will be the output?

#include<stdio.h>

int junk(int,int);

void main()

{

int i = 5, j = 2 ;

I = junk ( i, j ) ;

printf ( "\n%d %d", i, j ) ;

}

int junk ( int i, int j )

{

i *= i ;

j *= j ;

return i;

}

• 5,2
• 25,4
• 25,2
• 2,5