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C Language

C Language

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following file opening modes in C is/are invalid?

  1. O_CREATE
  2. O_EXCEL
  3. O_BINARY
  4. O_TEXT
  5. Both 1 and 4
Question 2 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

  1. A compiler does the same function as an interpreter.
  2. Instructions in C programs are terminated by semicolon.
  3. American National Standard Institute (ANSI) of C was set up in 1983.
  4. C is a middle level language.
  5. Both 2 and 3.
Question 3 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

  1. The element number in array plays a major role in calling each element of the array.
  2. Execution time with a pointer is little slow.
  3. An external variable is declared outside the body of a function.
  4. Both 1 and 3.
  5. None of these
Question 4 Multiple Choice (Single Answer)

What is the ASCII value of O (capital)?

  1. 79
  2. 80
  3. 110
  4. 111
  5. None of these
Question 5 Multiple Choice (Single Answer)

Which of the following is/are invalid C keyword(s)?

  1. Brake
  2. Extern
  3. Const
  4. Both 1 and 3
  5. None of these
Question 6 Multiple Choice (Single Answer)

Which of the following is/are not standard string function(s) of C library?

  1. Strpbrk ();
  2. Strbrk ();
  3. Strtok ();
  4. Strncmp ();
  5. Strstr ();
Question 7 Multiple Choice (Single Answer)

Which of the following statements is/are incorrect?

  1. The element number in array plays a major role in calling each element of array.
  2. The execution time with pointer is slower.
  3. An external variable is declared outside the body of a function.
  4. Both 2 and 3
  5. None of these
Question 8 Multiple Choice (Single Answer)

Which of the following operators are arranged from higher to lower priority in solving any particular expression?

  1. (>>) > (&) > (^) > (&&) = (sizeof)
  2. (sizeof) > (&) = (^) > (&&) > (>>)
  3. (&) = (sizeof) > (>>) > (^) > (&&)
  4. (^) > (&&) = (>>) > (&) > (sizeof)
  5. None of these
Question 9 Multiple Choice (Single Answer)

Find the output of the above program or error, if any.

#include<stdio.h>

#include<conio.h>

int num(int);

int main()

{

int n=9,t;

t=num(n);

printf("\\n the result is %d",t);

getch();

}

int num(int m)

{

int f=0;

if(m==0)

return (f);

else

   {

f=f+m+num(m-1);

return (f);

   }

}

  1. The result is 35.
  2. The result is 47.
  3. The result is 45.
  4. The result is 35.
  5. There is error in the program.
Question 10 Multiple Choice (Single Answer)

Which of the following statements about the above program is correct if we enter the number as 1111?

#include<stdio.h>

#include<conio.h>

#include<math.h>

#include<stdlib.h>

int main()

{

long n;

int x,y=0,p=0;

printf("enter number");

scanf(%d,&n);

while(n!=0)

   {

x=n%10;

if(x>1 || x<0)

      {

printf("invalid" );

exit(1);

      }

y=y+x*pow(2,p);

n=n/10;

p++;

   }

printf("answer is %d",y);

getch();

}

  1. Program will find the sum of digits.
  2. Program will find the number of digits.
  3. Invalid
  4. Program will run infinite times.
  5. There will be error in the program.
Question 11 Multiple Choice (Single Answer)

Find the output of the above program or error, if any.

#include<stdio.h>

#include<conio.h>

int main()

{

int a=8, b=2,c;

c=a^b;

printf(“the result is C=%d”,c);

getch();

}

  1. The result is C = 8.
  2. The result is C = 10.
  3. The result is C = 16.
  4. The result is C = 0.
  5. Error in the program.
Question 12 Multiple Choice (Single Answer)

Which of the following options shows the output or error of the above program?

#include<stdio.h>

#include<conio.h>

#define plus(x) x;

#define minus(x) --x + plus(x);

int main()

{

int x=8,y;

y=minus(x);

printf("y=%d",y);

getch();

}

  1. Y = 14
  2. Y = 15
  3. Y = 13
  4. None of these
  5. Error in the program
Question 13 Multiple Choice (Single Answer)

Find the output of the program or error, if any.

#include<stdio.h>

#include<conio.h>

#include<math.h>

int main()

{

int f=1,l,i,x=4,y=4;

float s;

s=x;

for(i=2;i<=y;i+=2)

   {

f=1;

for(l=1;l<=i;l++)

f=f*l;

s=s+pow(x,i)/f;

   }

printf("\\n result is %f" ,s);

getch();

}

  1. 22.3333
  2. 22.666666
  3. 22.999999
  4. 22.3366
  5. Error in the program
Question 14 Multiple Choice (Single Answer)

Find the output of the above program or error, if any.

#include<stdio.h>

#include<conio.h>

int main()

{

int a=4,b=8,c;

c=a | b;

printf(“the result is C=%d”,c);

getch();

}

  1. C = 0
  2. C = 32
  3. C = 12
  4. C = 8
  5. Error in the program
Question 15 Multiple Choice (Single Answer)

If we enter the number as 1111, which of the following statements about the above program is/are correct?

#include

#include

#include

#include

int main()

{

long n;

int x,y=0,p=0;

printf("enter number");

scanf(%d,&n);

while(n!=0)

   {

x=n%10;

i f(x>1 || x<0)

      {

printf("invalid" );

exit(1);

      }

y=y+x*pow(2,p);

n=n/10;

p++;

   }

printf("answer is %d",y);

getch();

}

  1. The program will find the sum of digits.
  2. The program will find the number of digits.
  3. Invalid
  4. The program will run infinite times.
  5. There is a error in the program.
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