1 — 25 carry one mark each.


1

In a compiler, keywords of a language
are recognized during
(A) parsing of the program
(B) the code generation
(C) the lexical analysis of the
program
(D) dataflow analysis

Answer:
(C)

2

A layer4 firewall (a device that can
look at all protocol headers up to the transport layer) CANNOT
(A) block entire HTTP traffic during
9:00PM and 5 :0OAM
(B) block all ICMP traffic
(C) stop incoming traffic from a specific
IP address but allow outgoing traffic to the same IP address
(D) block TCP traffic from a specific
user on a multiuser system during 9:00PM and 5:00AM

Answer:
(A)

3

If two fair coins are flipped and at
least one of the outcomes is known to be a head, what is the probability that
both outcomes are heads?
(A) 1/3
(B) 1/4
(C) 1/2
(D) 2/3

Answer:
(A)

4

Consider different activities related
to email.
m1: Send an email from a mail client
to a mail server
m2: Download an email from mailbox server
to a mail client
m3: Checking email in a web browser
Which is the application level
protocol used in each activity?
(A) ml: HTTP m2: SMTP m3: POP
(B) ml: SMTP m2: FTP m3: HTTP
(C) ml: SMTP m2: POP m3: HTTP
(D) ml: POP m2: SMTP m3: IMAP

Answer:
(C)

5

A company needs to develop a strategy
for software product development for which it has a choice of two programming
languages L1 and L2. The number of lines of code (LOC) developed using L2 is
estimated to be twice the LOC developed with Ll. The product will have to be
maintained for five years. Various parameters for the company are given in
the table below.
Parameter

Language L1

Language L2

Man years needed for development

LOC/10000

LOC/10000

Development cost per man year

Rs. 10,00,000

Rs. 7,50,000

Maintenance time

5 years

5 years

Cost of maintenance per year

Rs. 1,00,000

Rs. 50,000

Total cost of the project includes
cost of development and maintenance. What is the LOC for L1 for which the
cost of the project using L1 is equal to the cost of the project using L2?
(A) 4000
(B) 5000
(C) 4333
(D) 4667

Answer:
(B)

6

Let the time taken to switch between
user and kernel modes of execution be t_{1} while the time taken to
switch between two processes be t_{2}. Which of the following is
TRUE?
(A) t_{1} > t_{2}
(B) t_{1 }= t_{2}
(C) t_{1} < t_{2}
(D) nothing can be said about the
relation betweent_{1} and t_{2}

Answer:
(C)

7

A company needs to develop digital
signal processing software for one of its newest inventions. The software is
expected to have 40000 lines of code. The company needs to determine the
effort in personmonths needed to develop this software using the basic
COCOMO model. The multiplicative factor for this model is given as 2.8 for
the software development on embedded systems, while the exponentiation factor
is given as 1.20. What is the estimated effort in person months?
(A) 234.25
(B) 932.50
(C) 287.80
(D) 122.40

Answer:
(A)

8

Which of the following pairs have
DIFFERENT expressive power?
(A) Deterministic finite automata
(DFA) and Non—deterministic finite automata (NFA)
(B) Deterministic push down automata
(DPDA) and Nondeterministic push down automata (NPDA)
(C) Deterministic singletape Turing
machine and Nondeterministic singletape Turing machine
(D) Singletape Turing machine and
multitape Turing machine

Answer:
(B)

9

HTML (HyperText Markup Language) has
language elements which permit certain actions other than describing the
structure of the web document. Which one of the following actions is NOT
supported by pure HTML (without any server or client side scripting) pages?
(A) Embed web objects from different
sites into the same page
(B) Refresh the page automatically
after a specified interval
(C) Automatically redirect to another
page upon download
(D) Display the client time as part of
the page

Answer:
(D)

10

Which one of the following is NOT
desired in a good Software Requirement Specifications (SRS) document'?
(A) Functional Requirements
(B) NonFunctional Requirements
(C) Goals of Implementation
(D) Algorithms for Software
Implementation

Answer:
(D)

11

A computer handles several interrupt
sources of which the following are relevant for this question.
• Interrupt from CPU temperature
sensor (raises interrupt if CPU temperature is too high)
• Interrupt from Mouse (raises
interrupt if the mouse is moved or a button is pressed)
• Interrupt from Keyboard (raises
interrupt when a key is pressed or released)
• Interrupt from Hard Disk (raises
interrupt when a disk read is completed)
Which one of these will be handled at
the HIGHEST priority?
(A) Interrupt from Hard Disk
(B) Interrupt from Mouse
(C) Interrupt from Keyboard
(D) Interrupt from CPU temperature
sensor

Answer:
(D)

12

Consider a relational table with a
single record for each registered student with the following attributes.
1. Registration_Num: Unique
registration number of each registered student
2. UID: Unique identity number, unique
at the national level for each citizen
3. BdnkAccount_Num: Unique account
number at the bank. A student can have multiple accounts or joint accounts.
This attribute stores the primary account number.
4. Name: Name of the student
5. Hoszel_Room: Room number of the
hostel
Which of the following options is
INCORRECT?
(A) BankAccount_Num is a candidate key
(B) Registration_Num can be a primary
key
(C) UID is a candidate key if all
students are from the same country
(D) If S is a superkey such that that S∩UID is NULL
then S∪UID is also a superkey

Answer:
(A)

13

Which one of the following circuits is
NOT equivalent to a 2input XNOR (exclusive NOR) gate?

Answer:
(D)

14

The simplified SOP (Sum of Product)
form of the Boolean expression
_{ }is
(A) _{}
(B) _{}
(c) _{}
(D) _{}

Answer:
(B)

15

The minimum number of D flip—flops
needed to design a mod258 counter is
(A) 9
(B) 8
(C) 512
(D) 258

Answer:
(A)

16

A thread is usually defined as a
"light weight process" because an operating system (OS) maintains
smaller data structures for a thread
than for a process. In relation to this, which of the following is TRUE?
(A) On perthread basis, the OS
maintains only CPU register state
(B) The OS does not maintain a
separate stack for each thread
(C) On perthread basis, the OS does
not maintain virtual memory state
(D) On perthread basis, the OS
maintains only scheduling and accounting information

Answer:
(A)

17

K4 and Q3 are graphs with the
following structures.
Which one of the following statements
is TRUE in relation to these graphs?
(A) K4 is planar while Q3 is not
(B) Both K4 and Q3 are planar
(C) Q3 is planar while K3 is not
(D) Neither K4 nor Q3 is planar

Answer:
(B)

18

If the difference between the
expectation of the square of a random variable _{}and
the square of the expectation of the random variable _{}is
denoted by R , then
(A) R = O
(B) R < O
(C) R ³
O
(D) R > O

Answer:
(C)

19

The lexical analysis for a modem
computer language such as Java needs the power of which one of the following
machine models in a necessary and sufficient sense?
(A) Finite state automata
(B) Deterministic pushdown automata
(C) Nondeterministic pushdown
automata
(D) Turing machine

Answer:
(A)

20

Let the page fault service time be 10
ms in a computer with average memory access time being 20 ns. If one page
fault is generated for every 10^{6}
memory accesses, what is the effective access time for the memory?
(A) 21 ns
(B) 30 ns
(C) 23 ns
(D) 35 ns

Answer:
(B)

21

Consider a hypothetical processor with
an instruction of type LW R1 , 20 (R2), which during execution reads a 32bit
word from memory and stores it in a 32bit register R1. The effective address
of the memory location is obtained by the addition of a constant 20 and the
contents of register R2. Which of the following best reflects the addressing
mode implemented by this instruction for the operand in memory?
(A) Immediate Addressing
(B) Register Addressing
(C) Register Indirect Scaled
Addressing
(D) Base Indexed Addressing

Answer:
(D)

22

What does the following fragment of C
program print?
Char c [] = "GATE2011";
char *p = c;
printf <"%S", p + p[3] —
p[1] ):
(A) GATE2011
(B) E2011
(C) 2011
(D) 011

Answer:
(C)

23

A maxheap is a heap where the value
of each parent is greater than or equal to the value of its children. Which
of the following is a maxheap?

Answer:
(B)

24

Let P be a regular language and Q be a
contextfree language such that Q Í
P. (For example, let P be the language represented by the regular expression p^{*} q^{*} and Q be { p" q"  n Î N}). Then which of the following is
ALWAYS regular?
(A) P Ç
Q
(B) P 
Q
(C) S^{*} 
P
(D) S^{*} 
Q

Answer:
(C)

25

An algorithm to find the length of the
longest monotonically increasing sequence of numbers in an array A[O : n  1] is given below.
Let L_{i} denote the length of
the longest monotonically increasing sequence starting at index i in the
array.
Initialize L_{n}_{1 }=1.
For all i such that 0 £ i £
n  2
L_{i} = _{}
Finally the length of the longest
monotonically increasing sequence is Max (L_{0}, L_{1},…….L_{n1}).
Which of the following statements is
TRUE?
(A) The algorithm uses dynamic
programming paradigm
(B) The algorithm has a linear
complexity and uses branch and bound paradigm
(C) The algorithm has a nonlinear
polynomial complexity and uses branch and bound paradigm
(D) The algorithm uses divide and
conquer paradigm.

Answer:
(A)

26 to 55 carry two marks each.


26

Consider the languages L1. L2 and L3
as given below.
L1= {0^{p} 1^{q}
 p, q Î N},
L2= {0^{p} 1^{q}
 p, q Î N and p = q} and
L3 = {0^{p} 1^{q}
0^{r}  p, q, r Î N and p = q = r}. Which of the following
statements is NOT TRUE?
(A) Push Down Automata (PDA) can be
used to recognize L1 and L2
(B) L1 is a regular language
(C) All the three languages are
context free
(D) Turing machines can be used to
recognize all the languages

Answer:
(C)

27

Consider two binary operators '' and '¯'
with the precedence of operator ¯
being lower than that of the operator.
Operator is right associative while
operator¯ is left associative. Which
one of the following represents the parse tree for expression (7¯343¯2)?

Answer:
(B)

28

On a nonpipelined sequential
processor, a program segment, which is a part of the interrupt service
routine, is given to transfer 500
bytes from an I/O device to memory.
Initialize the address register
Initialize the count to 500
LOOP: Load a byte from device
Store in memory at address given by
address register
Increment the address register
Decrement the count
If count != 0 go to LOOP
Assume that each statement in this
program is equivalent to a machine instruction which takes one clock cycle to
execute if it is a nonload/store instruction. The loadstore instructions
take two clock cycles to execute.
The designer of the system also has an
alternate approach of using the DMA controller to implement the same
transfer. The DMA controller requires 20 clock cycles for initialization and
other overheads. Each DMA transfer cycle takes two clock cycles to transfer
one byte of data from the device to the memory.
What is the approximate speedup when
the DMA controller based design is used in place of the interrupt driven
program based inputoutput?
(A) 3.4
(B) 4.4
(C) 5.1
(D) 6.7

Answer:
(A)

29

We are given a set of n distinct
elements and an unlabeled binary tree with n nodes. In how many ways can we
populate the tree with the given set so that it becomes a binary search tree?
(A) 0
(B) 1
(C) n!
(D) _{}

Answer:
(D)

30

Which one of the following options is
CORRECT given three positive integers x, y and z , and a predicate
P(x)= ,(x=1)L"y($z(x= y*z) Þ
(y = x)v(y =1))
(A) P(x) being true means that x is a
prime number
(B) P(x) being true means that x is a
number other than 1
(C) P(x) is always true irrespective
of the value of x
(D) P(x) being true means that x has
exactly two factors other than 1 and x

Answer:
(A)

31

Given i=_{},
what will be the evaluation of the definite integral _{} ?
(A) 0
(B) 2
(C) i
(D) i

Answer:
(D)

32

Consider a database table T containing
two columns X and Y each of type integer. After the creation of the table,
one record (X=1, Y=1) is inserted in the table.
Let MX and MY denote the respective
maximum values of X and Y among all records in the table at any point in
time. Using MX and MY, new records are inserted in the table 128 times with X
and Y values being MX+1, 2*MY+1 respectively. It may be noted that each time
after the insertion, values of MX and MY change.
What will be the output of the
following SQL query after the steps mentioned above are carried out?
SELECT Y FROM T WHERE X=7;
(A) 127
(B) 255
(C) 129
(D) 257

Answer:
(A)

33

Consider a finite sequence of random
values X = [x_{1}, x_{ 2},...,x_{n} ]. Let m_{x} be the mean and s_{x} be the standard deviation of
X. Let another finite sequence Y of equal length be derived from this as y_{i}
= a * x_{i} + b, where a and b are positive constants. Let m_{y} be the mean and s_{y} be the standard deviation of
this sequence. Which one of the following statements is INCORRECT?
(A) Index position of mode of X in X
is the same as the index position of mode of Y in Y.
(B) Index position of median of X in X
is the same as the index position of median of Y in Y
(C) m_{y}
= am_{x} + b
(D) s_{y}=
as_{x} + b

Answer:
(D)

34

A deck of 5 cards (each carrying a
distinct number from 1 to 5) is shuffled thoroughly. Two cards are then
removed one at a time from the deck. What is the probability that the two
cards are selected with the number on the first card being one higher than
the number on the second card?
(A) 1/5
(B) 4/25
(C) 1/4
(D) 2/5

Answer:
(A)

35

Consider the following table of
arrival time and burst time for three processes P0, P1 and P2.
Process

Arrival time

Burst Time

P0

0 ms

9 ms

P1

1 ms

4 ms

P2

2 ms

9 ms

The preemptive shortest job first
scheduling algorithm is used. Scheduling is carried out only at arrival or
completion of processes. What is the average waiting time for the three
processes?
(A) 5.0 ms
(B) 4.33 ms
(C) 6.33 ms
(D) 7.33 ms

Answer:
(A)

36

Consider evaluating the following
expression tree on a machine with loadstore architecture in which memory can
be accessed only through load and store instructions. The variables a, b, c,
d and e are initially stored in memory. The binary operators used in this
expression tree can be evaluated by the machine only when the operands are in
registers. The instructions produce result only in a register. If no
intermediate results can be stored in memory, what is the minimum number of
registers needed to evaluate this expression?
(A) 2
(B) 9
(C) 5
(D) 3

Answer:
(D)

37

Which of the given options provides
the increasing order of asymptotic complexity of functions f_{1}, f_{2},f_{3},
and f_{4}?
f_{1}(n) = 2^{n } f_{2}(n) = n^{3/2} f_{3}(n) = n log_{2}
n f_{4}(n) = n^{log2 n}
(A) f_{3}, f_{2}, f_{4},
f_{1}
(B) f_{3}, f_{2}, f_{1},
f_{4}
(C) f_{2}, f_{3}, f_{1},
f_{4}
(D) f_{2}, f_{1}, f_{4},
f_{1}

Answer:
(A)

38

Four matrices M_{1}, M_{2 },
M_{3} and M_{4}, of dimensions p ´ q , q ´ r , r ´ s and s ´
t respectively can be multiplied in several ways with different number of
total scalar multiplications. For example when multiplied as ((M_{1} ´ M_{2}) ´ (M_{3} ´M_{4})).
The total number of scalar multiplications is pqr + rst + prt. When
multiplied as (((M1 ´ M2) ´M3) ´M_{4},),
the total number of scalar multiplications is pqr+ prs+ pst.
If p = 10, q = 100, r = 20, s = 5, and
t = 80, then the minimum number of scalar multiplications needed is
(A) 248000
(B) 44000
(C) 19000
(D) 25000

Answer:
(C)

Q·39

Consider a relational table r with
sufficient number of records, having attributes A_{1}, A_{2},……A_{n
}and
let 1 £
p £ n. Two queries Q1 and Q2 are
given below.
Q1: _{}where
c is a constant
Q2: _{} where
c_{1} and c_{2} are constants
The database can be configured to do
ordered indexing on A_{p} or hashing on A_{p}. _{ }Which
of the following statements is TRUE?
(A) Ordered indexing will always
outperform hashing for both queries
(B) Hashing will always outperform
ordered indexing for both queries
(C) Hashing will outperform ordered
indexing on Q1, but not on Q2
(D) Hashing will outperform ordered
indexing on Q2, but not on Q1

Answer:
(C)

40

Consider the matrix as given below.
_{}
Which one of the following options
provides the CORRECT values of the eigenvalues of the matrix?
(A) 1, 4, 3
(B) 3, 7, 3
(C) 7, 3, 2
(D) 1,2,3

Answer:
(A)

41

Consider an instruction pipeline with
four stages (S1, S2, S3 and S4) each with combinational circuit only. The
pipeline registers are required between each stage and at the end of the last
stage.
Delays for the stages and for the
pipeline registers are as given in the figure.
What is the approximate speed up of
the pipeline in steady state under ideal conditions when compared to the
corresponding nonpipeline implementation'?
(A) 4.0
(B) 2.5
(C) 1.1
(D) 3.0

Answer:
(B)

42

Definition of a language L with
alphabet {a} is given as following.
L = {a^{nk}  k > 0, and n is a positive integer constant}
What is the minimum number of states
needed in a DFA to recognize L?
(A) k+1
(B) n + 1
(C) 2^{n+1}
(D) 2^{k+1}

Answer:
(B)

43

An 8KB directmapped writeback cache
is organized as multiple blocks, each of size 32bytes. The processor
generates 32bit addresses. The cache controller maintains the tag
information for each cache block comprising of the following.
1 Valid bit
1 Modified bit
As many bits as the minimum needed to
identify the memory block mapped in the cache.
What is the total size of memory
needed at the cache controller to store metadata (tags) for the cache?
(A) 4864 bits
(B) 6144 bits
(C) 6656 bits
(D) 5376 bits

Answer:
(D)

44

An application loads 100 libraries at
startup. Loading each library requires exactly one disk access.
The seek time of the disk to a random
location is given as 10 ms. Rotational speed of disk is 6000 rpm. lf all 10()
libraries are loaded from random locations on the disk, how long does it take
to load all libraries? (The time to transfer data from the disk block once
the head has been positioned at the start of the block may be neglected.)
(A) 0.50 s
(B) 1.50 s
(C) 1.25 s
(D) 1.00 s

Answer:
(B)

45

A deterministic finite automaton (DFA)
D with alphabet X å = {a, b} is given
below.
Which of the following finite state
machines is a valid minimal DFA which accepts the same language as D?

Answer:
(A)

46

Database table by name Loan_Records is
given below.
Borrower

Bank_Manager

Loan_Amount

Ramesh

Sunderajan

10000.00

Suresh

Ramgopal

5000.00

Mahesh

Sunderajan

7000.00

What is the output of the following
SQL query?
SELECT count(*)
FROM (
(SELECT Borrower, Bank_Manager FROM
Loan_Records) AS S
NATURAL JOIN
(SELECT Bank_Manager, Loan_Amount FROM
Loan_Records) AS T
);
(A) 3
(B) 9
(C) 5
(D) 6

Answer:
(C)

47

The following is the comment
written for a C function.
/* This function computes the roots of a quadratic equation
a.x^2 + b.x + c = 0. The function
stores two real roots
in *root1 and *root2 and returns the
status of validity
of roots. It handles four different
kinds of cases.
(i) When coefficient a is zero
irrespective of discriminant
(ii) When discriminant is positive
(iii) When discriminant is zero
(iv) When discriminant is negative.
Only in case (ii) and (iii), the
stored roots are valid.
Otherwise 0 is stored in the roots.
The function returns
0 when the roots are valid and 1 otherwise.
The function also ensures root1 >=
root2.
int get_QuadRoots (float a, float b,
float c,
float *root1, float *root2);
*/
A software test engineer is assigned
the job of doing black box testing. He comes up with the following test cases,
many of which are redundant.
Test
Case

Input set

Expected Output set

a

b

c

Root1

Root2

Return
Value

T1

0.0

0.0

7.0

0.0

0.0

1

T2

0.0

1.0

3.0

0.0

0.0

1

T3

1.0

2.0

1.0

1.0

1.0

0

T4

4.0

12.0

9.0

1.5

1.5

0

T5

1.0

2.0

3.0

3.0

1.0

0

T6

1.0

1.0

4.0

0.0

0.0

1

Which one of the following options
provide the set of nonredundant tests using equivalence class partitioning
approach from input perspective for black box testing?
(A) T1, T2, T3, T6
(B) T1, T3, T4, T5
(C) T2, T4, T5, T6
(D) T2, T3, T4, T5

Answer:
(C)

Common Data Questions
Common Data for Questions 48 and
49:
Consider the following recursive C
function that takes two arguments.
unsigned int foo (unsigned int n,
unsigned int r) {
if (n>O) return ((n% r) + foo (n/r,
r) );
else return 0;
}


48

What is the return value of the
function foo when it is called as foo (345, 10)?
(A) 345
(B) 12
(C) 5
(D) 3

Answer:
(B)

49

What is the return value of the
function foo when it is called as foo (513 , 2) ?
(A) 9
(B) 8
(C) 5
(D) 2

Answer:
(D)

Common Data for Questions 50 and
51:
Consider the following circuit
involving three Dtype flipflops used in a certain type of counter
configuration.


50

lf at some instance prior to the
occurrence of the clock edge, P, Q and R have a value 0, 1 and 0
respectively, what shall be the value of PQR after the clock edge?
(A) 000
(B) 001
(C) 010
(D) 011

Answer:
(D)

51

If all the flipflops were reset to 0
at power on, what is the total number of distinct outputs (states)
represented by PQR generated by the counter?
(A) 3
(B) 4
(C) 5
(D) 6

Answer:
(B)


Linked Answer Questions
Statement for Linked Answer
Questions 52 and 53:
Consider a network with five nodes, N1
to N5, as shown below.
The network uses a Distance Vector
Routing protocol. Once the routes have stabilized, the distance vectors
at different nodes are as following.
N1:(0,1, 7, 8, 4)
N2: (1, 0, 6, 7, 3)
N3: (7, 6, 0, 2, 6)
N4: (8,7, 2,0,4)
N5: (4, 3, 6, 4, 0)
Each distance vector is the distance
of the best known path at that instance to nodes, N1 to N5, where the
distance to itself is O. Also, all links are symmetric and the cost is
identical in both directions. In each round, all nodes exchange their
distance vectors with their respective neighbors. Then all nodes update their
distance vectors. In between two rounds, any change in cost of a link will
cause the two incident nodes to change only that entry in their distance
vectors.


52

The cost of link N2N3 reduces to 2
(in both directions). After the next round of updates, what will be the new
distance vector at node, N3?
(A) (3, 2, 0, 2, 5)
(B) (3, 2, 0, 2, 6)
(C) (7, 2, 0, 2, 5)
(D) (7, 2, 0, 2, 6)

Answer:
(A)

53

After the update in the previous
question, the link N1N2 goes down. N2 will reflect this change immediately
in its distance vector as cost, ¥.
After the NEXT ROUND of update, what will be the cost to N1 in the distance
vector of N3?
(A) 3
(B) 9
(C) 10
(D) ¥

Answer:
(C)

Statement for Linked Answer
Questions 54 and 55:
An undirected graph G(V,E) contains n
(n > 2) nodes named v_{1},,v_{2},. .., v_{n}. Two
nodes v_{i}, v_{j} are connected if and only if 0 < i  j  £
2. Each edge (v_{i}, v_{j})is assigned a weight i +j. A
sample graph with n = 4 is shown below.


54

What will be the cost of the minimum
spanning tree (MST) of such a graph with n nodes?
(A) _{}(11
n^{2 }5 n)
(B) n^{2}  n+1
(C) 6n 11
(D) 2n +1

Answer:
(B)

55

The length of the path from v_{5}
to v_{6 }in the MST of previous question with n = 10 is
(A) 11
(B) 25
(C) 31
(D) 41

Answer:
(C)

General Aptitude (GA) Questions

56 — 60 carry one mark each.

56

Which of the following options is the
closest in the meaning to the word below:
lnexplicable
(A) lncomprehensible
(B) Indelible
(C) Inextricable
(D) Infallible

Answer:
(A)

57

If Log (P) = (1/2) Log (Q) = (1/3) Log
(R), then which of the following options is TRUE?
(A) P^{2}= Q^{3}R^{2}
(B) O^{2}= PR
(C) Q^{3} =R^{3}P
(D) R = P^{2}Q^{2}

Answer:
(B)

58

Choose the most appropriate word(s)
from the options given below to complete the following sentence.
I contemplated  Singapore for my vacation but
decided against it.
(A) to visit
(B) having to visit
(C) visiting
(D) for a visit

Answer:
(C)

59

Choose the most appropriate word from
the options given below to complete the following sentence.
If you arc trying to make a strong
impression on your audience, you cannot do so by being understated, tentative
or.
(A) hyperbolic
(B) restrained
(C) argumentative
(D) indifferent

Answer:
(B)

60

Choose the word from the options given
below that is most nearly opposite in meaning to the given word: Amalgamate
(A) merge
(B) split
(C) collect
(D) separate

Answer:
(B)

61 to 65 carry two marks each.


61

Few school curricula include a unit on
how to deal with bereavement and grief, and yet all students at some point in
their lives suffer from losses through death and parting.
Based on the above passage which topic
would not be included in a unit on bereavement?
(A) how to write a letter of
condolence
(B) what emotional stages are passed
through in the healing process
(C) what the leading causes of death
are
(D) how to give support to a grieving
friend

Answer:
(C)

62

P, Q, R and S are four types of
dangerous microbes recently found in a human habitat. The area of each circle
with its diameter printed in brackets represents the growth of a single
microbe surviving human immunity system within 24 hours of entering the body.
The danger to human beings varies proportionately with the toxicity, potency
and growth attributed to a microbe shown in the figure
below:
A pharmaceutical company is
contemplating the development of a vaccine against the most dangerous
microbe. Which microbe should the company target in its first attempt?
(A) P
(B) Q
(C) R
(D) S

Answer:
(D)

63

The variable cost (V) of manufacturing
a product varies according to the equation V= 4q, where q is the quantity
produced. The fixed cost (F) of production of same product reduces with q
according to the equation F = 100/q. How many units should be produced to
minimize the total cost (V+F)?
(A) 5
(B) 4
(C) 7
(D) 6

Answer:
(A)

64

A transporter receives the same number
of orders each day. Currently, he has some pending orders (backlog) to be
shipped. If he uses 7 trucks, then at the end of the 4th day he can clear all
the orders. Alternatively, if he uses only 3 trucks, then all the orders are
cleared at the end of the l0th day. What is the minimum number of trucks
required so that there will be no pending order at the end of the 5th day?
(A) 4
(B) 5
(C) 6
(D) 7

Answer:
(C)

65

A container originally contains 10
litres of pure spirit. From this container 1 litre of spirit is replaced with
1 litre of water. Subsequently, 1 litre of the mixture is again replaced with
1 litre of water and this process is repeated one more time. How much spirit
is now left in the container?
(A) 7.58 litres
(B) 7.84 litres
(C) 7 litres
(D) 7.29 litres

Answer:
(D)




