C test

if(fp == fopen("dfas","r") = = NULL), what is the value of fp
a. NULL
b. 0
c. 1
d. 0 or 1

#define sqr(x) x*x, what is value of j if j == 2 * sqr(3 + 4)

#define FILENAME(extension) test_##extension, how will it print FILENAME(back)
a. test_back
b. test_#back
c. test_##back
d. ??

char *p == "hello world"
p[0] == 'H', what will be printf("%s", p);
a. Hello world
b. hello world
c. H
d. compile error

int fun(), how do u define pointer to this function ??

what is ment by int (* xyz)[13]

what is true from
a. base call ferernece is compatible with child class
b. child class reference is compatible with base class
c. no reference to class
d. ??

class b
{
}
class a
{
friend class b
}
then what is ture
a. a can access all protected and public members in b
b. b can access all protected and public members in a
c. a can access all members of a
d. b can access all members of b

What is the output
#include
main()
{
int n=0;
int i;
i=2;
switch(1)
{
case 0:do{
case 1:n++;
case 2:n++;
}
while(--i>0);
}
printf("n==%d",n);
}

a. compile error
b. 4
c. 1
d. 0

Mathematics

Two liquids A : B in ratio 7:5 and now 24 gallons drain out and b is added the ratio becomes 5:7 what is containr capacity ? 30, 48 , 84, none

man has rope of length 660 mtr to fence a area , what is the max area he can fence ?

Son is about to celebrate 10th birthday. after 11 years his age will be half the average of his parents. his mother is 17 years older to him. what is the age of the father.

DI question where   hostel project are given and no of rooms in each hotels , investment , project yr . and company name
were asked to find min cost per room is for which hotel , which avg cost per room etc.

Avg of 6 no is 8 what 7 th no shud be added to make avg 10;

difference of cube of a no and its square is a perfect square , what is the no. -> 5

diff of three consecutive nos square and the nos is 214; find the nos :