HCL paper - 28

[sridhar]

HCL-TECH(it-bhu)2K3

Ordering is changed this time.So don't byheart by
a,b,c,d. Byheart the
answers. Pls check answer once again
Don't hesitate to answer all. Ever HR knows that
Students have this qp.
Ist section of the Question is as such in the
placement papers.com
Section II - C Programming
1. Which of the following about the following two
declaration is true
i ) int *F()
ii) int (*F)()
Choice :
a) Both are identical
b) The first is a correct declaration and the second
is wrong
c) The first declaraion is a function returning a
pointer to an
integer and the second is a pointer to function
returning int
d) Both are different ways of declarin pointer to a
function
Answer : c) The first de...
2. What are the values printed by the following
program?
#define dprint(expr) printf(#expr "=%d\n",expr)
main()
{
int x=7;
int y=3;
dprintf(x/y);
}
Choice:
a) #2 = 2 b) expr=2 c) x/y=2 d) none
Answer: c)x/y=2
3. Which of the following is true of the following program
main()
{
char *c;
int *ip;
c =(char *)malloc(100);
ip=(int *)c;
free(ip);
}
ans: The code functions properly releasing all the
memory allocated
4.output of the following.
main()
{
int i;
char *p;
i=0X89;
p=(char *)i;
p++;
printf("%x\n",p);
}
ans:0X8A
5.
which of the following is not a ANSI C language
keyword?
ans:Function.
6. When an array is passed as parameter to a function,
which of the following statement is correct
choice:
a) The function can change values in the original
array
b) In C parameters are passed by value. The funciton
cannot change
the original value in the array
c) It results in compilation error when the function
tries to access the elements in the array
d) Results in a run time error when the funtion tries
to access the elements in the array
Answer: a) The fu...
7. The type of the controlling expression of a switch
statement cannot be of the type
a) int b) char c) short d)float e) none
Answer : d)float

8.What is the value of the expression (3^6) + (a^a)?
a) 3 b) 5 c) 6 d) a+18 e) None
Answer : 5
9. What is the value assigned to the variable X if b is 7 ?
X = b>8 ? b <<3 : b>4 ? b>>1:b;
a) 7 b) 28 c) 3 d) 14 e) None
ans: 3;
10. Which is the output produced by the following program main()
{
int n=2;
printf("%d %d\n", ++n, n*n);
}
a) 3,6 b) 3,4 c) 2,4 d) cannot determine
Answer : b) 3,4
11. What is th output of the following program?
int x= 0x65;
main()
{
char x;
printf("%d\n",x)
}
a) compilation error b) 'A' c) 65 d) unidentified
ans. d)
12. What is the output of the following program
main()
{
int a=10;
int b=6;
if(a=3)
b++;
printf("%d %d\n",a,b++);
}
a) 10,6 b)10,7 c) 3,6 d) 3,7 e)none
Answer : d) 3,7
13. What can be said of the following program?
main()
{
enum Months {JAN =1,FEB,MAR,APR};
Months X = JAN;
if(X==1)
{
printf("Jan is the first month");
}
}
a) Does not print anything
b) Prints : Jan is the first month
c) Generates compilation error
d) Results in runtime error
Answer: b) Prints : Jan..
14. What is the output of the following program?
main()
{
char *src = "Hello World";
char dst[100];
strcpy(dst,src);
printf("%s",dst);
}
strcpy(char *dst,char *src)
{
while(*src) *dst++ = *src++;
}

a) "Hello World" b)"Hello" c)"World" d) NULL e)
unidentified
Answer: d) NULL
15. What is the output of the following program?
main()
{
int l=6;
switch(l)
{ default : l+=2;
case 4: l=4;
case 5: l++;
break;
}
printf("%d",l);
}
a)8 b)6 c)5 d)4 e)none
Answer : c)5
16. What is the output of the following program?
main()
{
int x=20;
int y=10;
swap(x,y);
printf("%d %d",y,x+2);
}
swap(int x,int y)
{
int temp;
temp =x;
x=y;
y=temp;
}

a)10,20 b) 20,12 c) 22,10 d)10,22
e)none
Answer:d)10,22

17. What is the output of the following problem ?
#define INC(X) X++
main()
{
int X=4;
printf("%d",INC(X++));
}
a)4 b)5 c)6 d)compilation error e) runtime
error
Answer : d) compilation error no ++++ operator allowed

18. what can be said of the following
struct Node {
char *word;
int count;
struct Node left;
struct Node right;
}

a) Incorrect definition
b) structures cannot refer to other structure
c) Structures can refer to themselves. Hence the
statement is OK
d) Structures can refer to maximum of one other
structure
Answer :c)

19. What is the size of the following union.
Assume that the size of int =2, size of float =4 and
size of char =1.
Union Tag{
int a;
flaot b;
char c;
};

a)2 b)4 c)1 d) 7
ans : b.)

20) What is the output of the following program? (.
has been used to indicate a space)
main()
{
char s[]="Hello,.world";
printf(%15.10s",s);
}

a)Hello,.World...
b)....Hello,.Wor
c)Hello,.Wor.... (this option is correct for
%s-15.10s)
d)None of the above

ans: b.) total 15 spaces and print only 10 characters.

These questions are based on data sufficiency in which
one has to tell if the given data in 2 statements is
enough to derive an answer.
A if only (1) is sufficent.
B if only (2) is sufficient.
C if either is sufficient.
D if both are sufficient.
E data insufficient.

(1) The combined length of the longer two pieces of
rope is 12 metres.
(2) The combined length of the shorter two pieces
of rope is 11 metres.

(A) (B) (C) (D) (E)

10) A certain company paid bonuses of Rs. 125 to each
of its executive
emplyees and Rs 75 to each of its nonexecutive
employees. If 100
of the employees were nonexecutive, how many were
executive?
1) The company has a total of 120 employees
2) The total amount that the company paid in
bonuses to its employees was Rs.10,000
(A) (B) (C) (D) (E)
ans. C.)

11. What fraction of his salary did Mr. Johnson put
into savings last week ?
1) Last week Mr.Johnson put Rs 17 into savings.
2) Last week Mr.Johnson put 5% of his salary into
savings.

(A) (B) (C) (D) (E)

ans. B.) only 2nd.

12. Each M-type memory unit will increase the base
memory capacity
of a certain computer by 3 megabytes. What is the base
memory capacity,
in megabytes, of the computer ?

1) 2 M-type memory units will increase the computer's
base memory capacity by 300%

2) The memory capacity of the computer after 2-M type
memory units
are added to the base memory capacity, is 1.6 times
the memory capacity
of the computer after 1 M-type unit is added to the
base memory capacity.

(A) (B) (C) (D) (E)

ans. C.) either.

13. What fractional part of the total surface area of
cube C is red?
1) Each of 3 faces of C is exactly 1/2 red
2) Each of 3 faces of C is entirely white
(A) (B) (C) (D) (E)
ans: D.) both.
SECTION C
Instructions ALL NUMBER USED ARE REAL NUMBERS
FOLLOWING
EACH QUESTIONS ARE FIVE POSSIBLE ANSWERS LABELED
A).B).C).D)&E).TICK THE BEST CHOICE.

14. How many of the integers between 25 and 45 are
even ?
(A)21 (B)20 (C)11 (D)10 (E)9
Answer:d)10
15. If taxi fares were Rs 1.00 for the first 1/5
mile and Rs 0.20
for each 1/5 miles thereafter. The taxi fare for a
3-mile ride was
(A)Rs 1.56 (B)Rs 2.40 (C)RS 3.00 (D)Rs 3.80 (E)Rs 4.20
Answer :d)Rs 3.80

16. A computer routine was developed to generate two
numbers (x,y)
the first being a random number between 0 and 100
inclusive, and
the second being less than or equal to the square root
of the first.
Each of the following pair satisfies the routine
EXCEPT
(A) (99.10) (B) (85.9) (C) (50.7) (D) (1.1) (E)
(1.0)
Answer : A) (99.10)
17. A warehouse had a square floor with area 10,000
sq.meters. A
rectangular addition was built along one entire side
of the warehouse
that increased the floor by one-half as much as the
original floor.
How many meters did the addition extend beyond the
original buildings ?

(A)10 (B)20 (C)50 (D)200 (E)500
Answer: c)50
18. A digital wristwatch was set accurately at 8.30
a.m and then
lost 2 seconds every 5 minutes. What time was
indicated on the watch
at 6.30 p.m of the same day if the watch operated
continuously that time ?

(A)5:56 B)5:58 (C)6.00 (D)6.23 (E)6.26