WIPRO Latest IT Fresher Placement Sample Question Question Paper 1
1.When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts
(a) In the backward direction on the front wheel and in the forward direction on the rear wheel.
(b) In the forward direction on the front wheel and in the backward direction on the rear wheel.
(c) In the backward direction on both the front and rear wheels.
(d) In the backward direction on both the front and rear wheels.
Ans. (d)
2. A certain radioactive element A, has a half life = t seconds.In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly
(a) 29%
(b) 15%
(c) 10%
(d) 45%
Ans. (a)
3. Which of the following plots would be a straight line ?
(a) Logarithm of decay rate against logarithm of time
(b) Logarithm of decay rate against logarithm of number of decaying nuclei
(c) Decay rate against time
(d) Number of decaying nuclei against time
Ans. (b)
4. A radioactive element x has an atomic number of 100.It decays directly into an element y which decays directly into element z. In both processes a charged particle is emitted. Which of the following statements would be true?
(a) y has an atomic number of 102
(b) y has an atomic number of 101
(c) z has an atomic number of 100
(d) z has an atomic number of 101
Ans. (b)
5. If the sum of the roots of the equation ax2 + bx + c=0 is equal to the sum of the squares of their reciprocals then a/c, b/a, c/b are in
(a) AP
(b) GP
(c) HP
(d) None of these
Ans. (c)
6. A man speaks the truth 3 out of 4 times. He throws a die and reports it to be a 6. What is the probability of it being a 6?
(a) 3/8
(b) 5/8
(c) 3/4
(d) None of the above
Ans. (a)
7. If cos2A + cos2B + cos2C = 1 then ABC is a
(a) Right angle triangle
(b) Equilateral triangle
(c) All the angles are acute
(d) None of these
Ans. (a)
8. Image of point (3,Cool in the line x + 3y = 7 is
(a) (-1,-4)
(b) (-1,4)
(c) (2,-4)
(d) (-2,-4)
Ans. (a)
9. The mass number of a nucleus is
(a) Always less than its atomic number
(b) Always more than its atomic number
(c) Sometimes more than and sometimes equal to its atomic number
(d) None of the above
Ans. (c)
10. The maximum KE of the photoelectron emitted from a surface is dependent on
(a) The intensity of incident radiation
(b) The potential of the collector electrode
(c) The frequency of incident radiation
(d) The angle of incidence of radiation of the surface
Ans. (c)
11. Which of the following is not an essential condition for interference
(a) The two interfering waves must be propagated in almost the same direction or the two interfering waves must intersect at a very small angle
(b) The waves must have the same time period and wavelength
(c) Amplitude of the two waves should be the same
(d) The interfering beams of light must originate from the same source
Ans. (c)
12. When X-Ray photons collide with electrons
(a) They slow down
(b) Their mass increases
(c) Their wave length increases
(d) Their energy decreases
Ans. (c)
13. An electron emits energy
(a) Because its in orbit
(b) When it jumps from one energy level to another
(c) Electrons are attracted towards the nucleus
(d) The electrostatic force is insufficient to hold the electrons in orbits
Ans. (b)
14. How many bonds are present in CO2 molecule?
(a) 1
(b) 2
(c) 0
(d) 4
Ans. (d)
15. In a balanced chemical equation (a) Atoms are conserved
(b) Molecules are conserved
(c) Moles are conserved
(d) Reactant and product molecules are preserved
Ans. (a)
16. How many grams of NaOH will react with 0.2 equivalent of HCl?
(a) 0.59
(b) 0.285
(c) 1.18
(d) none of these
Ans. (a)
17. Which of the following is least acidic
(a) Ortho-cresol
(b) Para-cresol
(c) Phenol
(d) Meta-cresol
Ans. (b)
18. In Reimer-Tiemann's reaction, the reaction intermediate is
(a) Carbene
(b) Dichloro carbene
(c) Carbonion
(d) Carbonium ion
Ans. (b)
19. Which of the following is most acidic?
(a) C2H5OH
(b) CH3CHOHCH3
(c) Ethanol
(d) CH3OH
Ans. (b)
20.A catalyst
(a)always slows down the reaction
(b)always starts a rection that would not have ocurred at all otherwise
(c)causes changes in the rate of the reaction
(d)changes the quantities of the products formed
Ans. (c)
21.The rate of the first order reaction depends on the
(a) Concentration of the reactant
(b) Concentration of the product
(c) Time
(d) Temperature
Ans. (d)
22. The most abundant element in the universe is
(a) Hydrogen
(b) Helium
(c) Oxygen
(d) Silicon
Ans. (a)
23. Integrate 3x + 5 / (x3-x2-x+1)
(a) 1/2 log | (x+1)/(x-1) | - 4/(x-1)
(b) log |2+tanx|
(c) -(1+logx)/x
(d) 2 log|(tanx)/(tanx+2)
Ans. A
24. If y=cos-1(cosx + 4sinx)/(17)1/2, then dy/dx is
(a) 0
(b) 1
(c)-1
(d) none of these
Ans. (b)
Saturday, February 23, 2008
WIPRO Latest IT Fresher Placement
WIPRO Latest IT Fresher Placement
25. If the sum of n terms of two series of A.P are in the ratio 5n+4:9n+6. Find the ratio of their 13th terms
(a) 129/231
(b) 1/2
(c) 23/15
(d) None of the above
Ans. (a)
26. If the letters of the word "rachit" are arranged in all possible ways and these words are written out as in a dictionary, what is the rank of the word "rachit".
(a) 485
(b) 480
(c) 478
(d) 481
Ans. (d)
27. Ravi's salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is
(a) 20%
(b) 25%
(c) 33 1/3%
(d) 30%
Ans. (c)
28. A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job
(a) 48
(b) 34 2/7
(c) 44
(d) 45
Ans. (a)
29. How long will a train 100m long traveling at 72kmph take to overtake another train 200m long traveling at 54kmph
(a) 70sec
(b) 1min
(c) 1 min 15 sec
(d) 55 sec
Ans. (b)
30. What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?
(a) 3/2
(b) 4
(c) 3
(d) 3/4
Ans. (a)
31. Which of the following parameters is the same for molecules of all gases at a given temperature?
(a) Mass
(b) Momentum
(c) Speed
(d) Kinetic energy
Ans. (d)
32. A solid is completely immersed in liquid. The force exerted by the liquid on the solid will
(a) Increase if it is pushed deeper inside the liquid
(b) Change if its orientation is changed
(c) Decrease if it is taken partially out of the liquid
(d) None of the above
Ans. (c)
33. Select the correct statements
(a) A simple harmonic motion is necessarily periodic
(b) An oscillatory motion is necessarily periodic
(c) A periodic motion is necessarily oscillatory
(d) All of the above
Ans. (a)
34. An electron is injected into a region of uniform magnetic flux density with the components of velocity parallel to and normal to the flux. What is the path of the electron?
(a) Helix
(b) Parabola
(c) Circle
(d) Rectangle
Ans. (a)
35. A constant voltage is applied between the 2 ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
(a) both the length and radius of the wire are halved.
(b) both the length and radius of the wire are doubled
(c) the radius of the wire is doubled
(d) the length of the wire is doubled
Ans. (b)
36. If Young's double slit experiment is performed in water
(a) the fringe width will decrease
(b) the fringe width will increase
(c) the fringe width remains unchanged
(d) there will be no fringe
Ans. (a)
37. The shape of a spot of light produced when bright sunshine passes perpendicular through a hole of very small size is
(a) Square, because the hole is a square
(b) Round, because it is an image of the sun
(c) Round with a small penumbra around it
(d) Square with a small penumbra
Ans. (b)
Select the alternative that logically follows from the two given statements.
38. Some forms are books
All books are made of paper
(a) Some forms are made of paper
(b) Some forms are not made of paper
(c) No forms are made of paper
(d) None of the above
Ans. (a)
39. All toffees are chocolates
Some toffees are not good for health
(a) Some chocolates are not good for health
(b) Some toffees are good for health
(c) No toffees are good for health
(d) Both (a) and (b)
Ans. (a)
The questions 40-46 are based on the following pattern.The problems below contain a question and two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the questions.The correct answer is
(A) If statement (I) alone is sufficient but statement (II) alone is not sufficient.
(B) If statement(II) alone is sufficient but statement(I) alone is not sufficient.
(C) If both statements together are sufficient but neither of statements alone is sufficient.
(D) If both together are not sufficient.
(E) If statements (I) and (II) are identical.
43. If a ground is rectangular, what is its width?
(I) The ratio of its length to its breadth is 7:2
(II) Perimeter of the playground is 396 mts.
Ans. C
44. If the present age of my father is 39 yrs and my present age is x yrs, what is x?
(I) Next year my mother will be four times as old as i would be.
(II) My brother is 2 years older than I and my father is 4 years older than my mother.
Ans. C
45. How many brothers and sisters are there in the family of seven children?
(I) Each boy in the family has as many sisters as brothers
(II) Each of the girl in the family has twice as many brothers as sisters
Ans. D
46. x is not equal to 0, is x + y = 0?
(I) x is the reciprocal of y
(II) x is not equal to 1
Ans. A
Following questions are based on letter's analogy.First pair of letters should have the same relationship as the second pair of letters or vice versa.
47. ? : BGLQ : : YDIN : VAFK
(a) EKNS
(b) DKMT
(c) DLMS
(d) EJOT
Ans. (d)
48. NLO : RPS : : ? : ZXA
(a) VUW
(b) VTR
(c) VTW
(d) TRP
Ans. (c)
49. If "segment" is coded as rffndou, then "ritual" is coded as
(a) shutbm
(b) qjutbk
(c) qhutbk
(d) qhubtk
Ans. (c)
50. If "football" is "cricket" ,"cricket" is "basketball" ,"basketball" is "volleyball","volleyball" is "khokho" and "khokho" is cricket, which is not a ball game?
(a) cricket
(b) football
(c) khokho
(d) basketball
Ans. (a)
51. Which of the following is a recursive set of production
(a) S --> a|A, A --> S
(b) S --> a|A, A --> b
(c) S -->aA, A-->S
(d) None of these
Ans. (c)
WIPRO-Placement Paper-26 Feb 2005-Hyderabad
Pattern
Verbal-15 questions
Analytical- 30 Questions
Technical-35 Questions Time-90Min
Verbal
For the verbal section GRE barrons will do..
It includes fill in the blanks..analogies ..on paragraph containing blanks..synonyms..idioms
Analytical
1 A horse is tied to the corner of a square of side 15 m with a rope of length 14m.Find the area which the horse can graze and the area which it cannot.
2.The ratio of incomes of C and D is 3:4.the ratio of their expenditures is 4:5.Find the ratio of their savings if the savings of C if one fourths of his income.
3 Find the no of ways in which four balls can be selected from 4 green and 6 white balls
4. A is 6 times as fast as B and takes 100 days less to complete a work than B. find the total no of days taken by A and B to complete the work.
5.A cube is painted Black. It is divided into 125 equal cubes.find the no of cubes which have atleast 2 sides painted black.
6. If a covers 15 miles in 20 minutes and 20 miles in 30 min then find the average speed of A.
7-16 analytical type questions
These r basically easy ones...we need not work out much..the answer will be in the question itself....we need to have concentration...don't waste time trying to solve doing all rough work...read the question first...
17
If pqrstuvw are numbered from22 - 33 not necessarily in that order....given few condition like
R is as much less than u as t is more than p etc etc...and many more conditions llike this...
One condition was q is in the middlle... find the orer of the letters starting from lowest to highest.
And in the choices there was only option which had q in the middle ..so guys don't waste time trying to arrange the letters jst check the conditions and look in the choices which satisfies
18 if 39X41=15 and 47X56=12 then 24X78=? (numbers not exactly same but model)it was tough
19 The ratio of the no of boys to teachers is 3:80.if 3/5 of the students r girls and the no of boys is 51 more then the no of girls find the no of teachers.( Not sure may be one more condition missing).
if DKML is coded as MNJK then FGHY is coded as ( letters r not same)..it was tough
one more on probality like a 6 letter is to formed insuch a way that no letter is repeated etc etc I don't remember exact question another one like rabbit gives tortise a start of 200 m .if 2 leaps of rabbit is equal to 3 leaps of tortise then find the no of steps taken by rabbit to catch up with tortise..(not exactly but model is similar)
Technical
Register variables can hold
a Garbage values
b Array
c Double values
d All of the above
2.When an array is passed to a function what exactly is passed.
the values of the array
the address of the starting variable in the array.
The addresses of the elements in the array
None
Compiler recognizes the function as pure virtual function if
A The function if equated to 0.
B the function has no body
C if it is declared with the keyword virtual
D none
In the select clause which of the following can be used to group the data
A group by
B order by
C having
D none
netware uses which protocol
5. Which of the following is invalid
A class
B class
C
D None
one more on templates -theory
int *p, i=4;
p=&I
(*p)++
printf("%d",p);
8
int n=66,m;
n=m++;
m=++n;
printf(n , m);
9. A for loop was given and ques was how many times the loop will execute-easy one
10
int num[5];
num[5]=10;
The 5 in the first and the second statements denotes
11.which of the foll is correct
A static enum num{ON,OFF}
B static const enum num{ON, OFF}
C const enum num{ON, OFF}
D None
12 Which of the foll will print the sum of the values from10 - 100 asuming that post is initiaised to 0
A For(int I=10;post =0;I<=100;I++)
a=a+I
B For(int I=10;I<=100;I++)
a=a+I
and two more choices
13 which of the following is not gives an l value
a a
b *(a+I)
c &a
d None
14 -16 Three problems on networks related to ethernet tokenring etc etc
17 one ques related to ethernet
18 one related to DHCP
19 one question on NAND gates like what is the min no of inputs required etc etc
20 one ques on structures
21 one program on java where the class extends cloneable and 3 lines of code.. which throws Exception
22Public static void main( string [ ] args)
{
int a[]= new int[5];
args.length=10;
System.out.println(a.length);
}
output of the above ..choices were something like exception thrown static reference to non static variable
one ques related to PL/SQL functions......
One on preprocessor directives
One on gateways
Wipro Technical Interview. HR Interview
The recruitment procedure is like this :
1.Written Test
2. Technical Interview
3. HR Interview
SECTIONAL CUTOFF IS THERE
Written test: It consists of 50Q and the duration is 1 hr.
15Q from verbal (topics: active voice & passive voice, reported speech, phrases, one word substitute, synonym, jumbled word, Reading Comprehension) 15Q from aptitude (topics: Blood relations, number series, conclusion from the paragraph, time& work, time distance, theme of the paragraph, boats & streams, avg, clocks, directions) 20Q from technical (topics: C (3), DS(3), general(2), DBMS, OS, Unix, networks
Verbal section:
Fill in the blanks in paragraph(6)
Active to passive voice(2)
Find the suitable words (2)
Find the summary of the paragraph(1)
Punctuation marks(1)
Aptitude Section:
Analyzing summary of paragraph(3)
The sharp decline in the mortality since 1941 shows that who argue that the introduction of new chemicals has caused serve health problems are mistaken from 1940-1979, the average life expectancy for the entire United States population increased from 63.6 to 73.6 years, and the total age adjusted death rate declined by forty five percent, including decline in every age, sex and racial group. There were also the years in which there was a dramatic increase in the use of new chemicals in this country. Clearly, then those modern aids to industry have no adverse effects on the general health of society. Which of the following is an assumption underlying the conclusion of the passage above?
A) The increase in life expectancy in the United States was paralleled by corresponding increases in other countries.
B) The growth in the average life expectancy in the United States cannot be attributed to any single factor, but is a general phenomenon.
C) The increase in life expectancy would not have been greater if there had not been an increase in the use of chemicals.
D) Growth in the use of chemicals was a crucial factor in the development of industry from 1940-1979
Pipes(1)
pendulums(1)
ratio-proportions(1)
Simple and compound interests(2)
Conversions(feet->inches)
reasoning, basic physics, percentages, profit- loss...
If in a map 31/2km is replaced by 1cm then 20km is replaced by
Examine carefully the following sequence of numbers:
1
11
21
1211
111221
312211
13112221
1113213211
31131211131221
13211311123113112211
hint: ( in first row one 1, in 2nd row two 1s, in 3rd row one 1,........
technical:
Technical questions will be easy for a student with computer science background. Non-CS please dont worry, you will have a lower cut-off in this section when compared to a CS student. Questions from DBMS, OS, C, Java, Unix, Computer Networks, General keyboard shortcuts will be asked. that's it friends. There is cutoff for each section. Verbal(7 to 9), Aptitude( 8), technical(9);
Technical Interview:
Describe ur college?
Tell me about ur self?
What is an integer?
What is a character?
What is an array ?
What is difference b/w character and an array?
What is a structure?
What is difference b/w array and structure?
What is ur favorite sub? (I told vlsi)
Some questions on vlsi.
Some questions on my paper presentions
Some questions on my mini project
Some questions on my paper presentions
What do u do on Sundays? (hobbies)
Some questions on my hobbies?
HR Interview:
Some questions on my weakness
How is it a weakness?
What r u doing to overcome the weakness?
Tell me about urself
Some questions on strengths
Some questions on my hobbies
Why should I hire u?
Some questions on my weakness
How is it a weakness?
What r u doing to overcome the weakness?
Tell me about urself
Some questions on strengths
Some questions on my hobbies
Why should I hire u?
That's it friends. Try to ask any Q to HR that shows ur interest towards the job
Try to give answers with sutable examples for each questions
Wipro Interview C JAVA ORACLE C++ C
1.Explain ur project.
2what is a pointer
3pass the address of a variable to a pointer
4.write pgm for pass by value and reference
5.what is recursion.write a pgm.
6.what is macro
7.difference between macro and standard lib functions
8.define inheritance &polymorphism
9what is multithreading
10.is it necessary for a function to return a value
11what is swapping in os
12list the swapping alg.
13what is page fault.explain a PF alg
14what is a tree
15.what is a graph.,disjoint graph
16.sort nos using quict sort
17types of sorting
18types of software model
19 what is query
20.typer of sql,ddl,dml
21.creata a table,view
22what is a shell and kernal.
HR
1.introduce urself
2.explain ur project
3.any problem u faced in life.explain it in detail.
I want to tell a small point here.
some are...
I) 1.how to find the jth node from last node in a single linked list in one search,the condition is i have not given the length of the linked list?
2.differentiate the call by value and call by reference?
3.defferentiate the static and volatile variables? 4.define macro?
5.write the gcd programm?
6.i was given a program to find the output? i=printf("hellow"); printf("%d",i);
7.define register variable? advantage?
8.#define a(a,b) a*b; printf("%d",a(2+3,2+3));
9.define avl tree,2-3 tree,btree,bst?what are balanced tree?
10.diffrence between tree to bt?
II) 1.abot urself.
2.tell me abt ur final sem project.
3.ur interesting subjedct(i told electronics related topics)
4.why u wnt to join wipro
5.if u got any offer for higher studies do u stick wt wipro... some ......(these are some asked to me in the interview)
dont panic its very easy dont get tense they are friendly enough to answer the questions
In the interview they will test ur basics, abt ur final yr project, and basics of c. and whatever u wrote in ur resume.
III) They ask you questions regrading 1) final year project(this is very imp. section..explain your project as nicely as possible)
2) why u chose that project?
3) C/C++ skills(this may include framing a program of their wish or if you are luckythen simple questions based on the programming language)
4) your favourite subject(Be carefull and prepare that subject throughly)
IV)
In tech interview they asked me about
1) data structures:
sorts(their complexities)
linked list,
uses of trees
about malloc
quick sort's logic
2) in C
simple program outputs.
pointers.
3)in n/ws
About protocols and to which layer they belong
About FTP,TFTP,TCP,UDP,IP
about internet addresses(class A,B and so on).
4) About my project
5)in OS
Virtual memory,Paging ,Segmentation etc.
My experience::
Technical:
1)i was asked to explain about my project.
2)then he asked me write a query in oracle --> select the duplicate names in a table(ename,empid)
3)abt SQL,
4)stmts in oracle(DDL,DML,DCL,TCL) and explain,
5)some in c++, some in C,
6)diff. between c and C++,
7)what is OOP, features of OOps,
8)what is a structure,
9)can 2 diff, machines in 2 diff. companies(eg. WIPRO and TCS) have same IP address (Ans: yes,if they have a subnet mask).
10)what a grid in VB how does it differ from other tools?
11)what is a t-list in VB(i didn't know)
12)what is ODBC,ADO,DAO.
13)examples of RDBMS
14)what are diff kinds of DBMS?
15)what is LAN,WAN?
16)what does W in WLAN stand for?
17)What is Linux,Unix.
18)In what way does unix differ from Windows
19)where do we use Unix.
HR was as usual...formal HR Qs.
My friend was asked Qs in Java and C++. thats it....
i think have done my work, now its up to u to prepare well and get thro'. One thing i found was they are also checking ur confidence level.. they want people with confidence...not alone the stuff...
OS
Explain the concept of semaphore?
what is memeory management?
what is virtual memory/
what is paging, segmentation?
Internal and external fragmentation?
what is O.S?
functions of O.S?
what is TLB or TLAB?
process, thread?
Multiprogramming,Multitasking,Multiprocessor?
disadvantages of using semaphores?
what is dead lock?
conditions for occuring of deadkock?
C
why c?
structure,union?what is the differnece?
arrray,structure-- difference
array, linked list--differnece
stacks,queue--differnece
concepts of searching and sorting techniques
program of fibonacci
trees,graphs--difference
CN connection oriented, connection less
TCP/IP,UPP--MAJOR DIFFERNCE
DBMS
what is database?
what is the function of JOIN?
questions on personal details and fav subjects
DS: Explanation abt quick sort and insertion sort with algorithms
OS: What are the two modes of OS and why?
what are diff threads in OS and their differences
Explain semaphores with help of an example?
DBMS what is DBMS and what are thos application programs?
Diff between DBMS and RDBMS.
What is normalisation and explain II normal form
Differences b/w 3Nf and BCNF
CN
what is DNS?
questions about IP address
C
what is the diff b/w structures and unions
how we can allocate memory dynamically and diff between calloc and malloc?
C++
what are virtual base classes
Java
how we can allocate memory dynamically in java
C
what is pointer?
what is structure?
what is call by reference,call by value programs diffference?
JAVA
encapulation,method over riding and over loading.
features of java how it differ from C?
platform independence justify?
ORACLE
cursor, view (types),triggers,constraints,
database,relation database difference
procedures ,functions
OS semaphore,dead lock conditions
XP NT difference
98 NT difference
ASSEMBLY LANGUAGE
any program
unified modelling language
data structure, linked list ,stacks , queues.
what is a pointer?
what is a data structure,compiler,interpreter ,command interpreter?examples of cmd interpreter?
give the h/w design of unix OS
write a prog for einstein formula?
write a prog for
there is a door.it has sensor for opening . if a person comes in opposite direction the door has to open :if 2 persons came at same time it has to alarm and then open the door?
what is the difference between DBMS and RDBMS?
what is the program written in UNIX called ?(not pertaining to any language
Wipro APTITUDE TEST OS, Datastructures, C and CO
Written : Mainly OS, Datastructures, C and CO .
Answers : All the answers which iam giving here may not right. These are
just what I wrote there.
1. On Deadlock : Trivial answer, Shared Data
2. CPU Utilization:
given CPU time : 20 %
paging : 97.7%
I/O : 5.33 %
Which of the following is not likely to improve CPU Utilization:
Ans: Installing a faster CPU
3. Bubble sort : Given sequence of numbers what will be order of sequences
after two iterations.
Ans: very trivial, but you should know what bubble sort
does.
4. Bubble sort : how many swap operations has been done in the above
process?
5. What data structures you should use for dictionary searching and it
should be capable of doing spell check also ?
Ans: Hashing
6. Which is the best scheduling algo. (given five of them)
Ans.: Shortest Job First with Pre-emption
7. If a numbering system uses 0 , 1 and Z where Z stands for -1
what is the value of 6.25 :
Z01 = 1*1 + 0*2 + (-1)*4
Ans: You can easily find out by trial and error keep in mind
that other side of dot will proceed as 1/2, 1/4 ...
8. What is the value of 121 base 4 + 84 base 16 ?
Ans : 2130
9. What Aliases stands for ...........?
10.What is the value of
ABCD + AB'C'D' + AB'C'D + AB'C'D' ?
( Expression may not be the exact one but something similar to
the above )
11. & 12. Given a C code. What is the OUtput ?
Ans: Trivial, just we have to go through the code
carefully.
ONe of the questions is to reverse the given number.
ie. given 3276 the pgm. will output 6723
13. ONe questions on CO, which is slight a lenghty one and I couldnt'
recollect the same.
14. Given Three trees and ONe sequence of alphabets, we are suppose
to find which operation was performed on the tress to get
that result. ie. either preorder, postorder or inorder.
Ans: To that question, all preorder
15. When the fn. is called where the return add. is stored?
ans. stack
16. What is the nece. for compiler to support recursion?
ans/ stack
There are five more questions which i could not recollect as of
now and mail you later.
Questions that are asked to me in the wip.info. interview.
1. What are the funs. of transport layer? What is TCP, UDP, their
differences .....
2. If you undelete a file in unix or dos can you recover it?
If you can how will you do it?
3. Write a pgm. to check whether given string is palindrome or not?
4. Which page replacement algo. is the best one? ie. the one which
will give less page faults, assuming cache memory is not there.
4. Do you know unix internals?
5. What is TSR ? Explain in little detail? HOw it is handled?
6. How to fine the size of the int without using size of operator?
ans. store -1 in that location so by two's complement all ones
will be stored in that location. Keep right shifting it
so zeros will be appened on the left. Once the location
is filled with all zeros, the number of shifts gives you
the size of that operator.
7. About ARP and RARP.
8. HOw parameter passing in C
9. What compiler actually does
1) ONE RECTANGULAR PLATE WITH LENGTH 8INCHES,BREADTH 11 INCHES AND
2 INCHES THICKNESS IS THERE.WHAT IS THE LENGTH OF THE CIRCULAR ROD
WITH DIAMETER 8 INCHES AND EQUAL TO VOLUME OF RECTANGULAR PLATE?
ANS: 3.5INCHES
2) WHAT IS THE NUMBER OF ZEROS AT THE END OF THE PRODUCT OF THE NUMBERS
FROM 1 TO 100
3) in some game 139 members have participated every time one fellow will
get bye what is the number of matches to choose the champion to be
held?
ans: 138
4) one fast typist type some matter in 2hr and
another slow typist type the
same matter in 3hr. if both do combinely in how much time they
will finish.
ans: 1hr 12min
5) in 8*8 chess board what is the total number of squares
refer odel
ans:204
6) falling height is proportional to square of the time.
one object falls 64cm in 2sec than in 6sec from how much
height the object will fall.
7) gavaskar average in first 50 innings was 50 . after the 51st
innings his average was 51 how many runs he made in the 51st
innings
8)2 oranges,3 bananas and 4 apples cost Rs.15 . 3 ornages 2 bananas
1 apple costs Rs 10. what is the cost of 3 oranges, 3 bananas and
3 apples ANs Rs 15.
9)in 80 coins one coin is counterfiet what is minimum number of
weighings to find out counterfiet coin
10)in a company 30% are supervisors and 40% employees are male
if 60% of supervisors are male. what is the probability
that a randomly choosen employee is a male or female?
11)statement: all green are blue are blue, all blue are white
conclusion:
I) some blue are green II) some white are green
III)some green are not white IV) all white are blue
a) he has given four choices like gre type
12)all teachers are students. some students are girls.
this type of questions are there.
we cant able to reproduce them.:wq
APTITUDE TEST
1)33 1/3 of 101 + 296 is
(ans 1200) check
2)0.625= ? (ans 27/40)
3)One ship goes along the stream direction 28 km and in opposite
direction 13 km in 5 hrs for each direction.What is the velocity
of stream?
(ans 1.5 kmph)
4)Cubic root of 3375=?
(ans 15)
5)2020201-565656=?
(ans 1454545)
6)CHAIRS PROBLEM
5 chairs=9 tables,12 tables = 7 stools likethat- - -
(ans is 80Rs)
7)One clock ringes 7 O'clock in 7 sec.In how many seconds it will
ring 10 O'clock.
(ans 10.5 sec)
8)One watch is showing 30 past 3 .What is the angle between minutes &
hours hand?
(ans 75 degrees)
9)The average of 4 consecutive even numbers is 27. What is the largest
number?
(ans 30)
10) 25 stations ,24 stations are inbetween- - - - -
how many tickets should be required.
(ans 25*24=600)PUZZLES TO PUZZLE YOU "S.DEVI"PROB 24
11)One ball was dropped from 8ft height and every time it goes half
of the height. How much distance it will travell before coming to
rest.
(ans 24 approximately)
12)Two trains are travelline at equilateral .Train A is travelling
in the direction of earths spin.Other train B is travelling in
opposite direction of earths spin.Which trains wheels will wear
first?and why?
(ans TRAIN B .Because of less centrifugal force.)
OK HARI 3 MORE QUES ARE THERE.I HOPE YOU CAN SOLVE EASILY.
NOW I have only 3 C ques. I am sendins them in immediate
mail. Any whey I will try to send remaining 7 C ques
before 20th.
C QUESTIONS:WHAT IS THE OUT PUT FOR FOLLOWING PROGRAMMS
1)main()
{
char a[2];
*a[0]=7;
*a[1]=5;
printf("%d",&a[1]-a)
ANS:
ans may be 1.(illegal initialization)
2)
#include<stdio.h>
main(){
char a[]="hellow";
char *b="hellow";
char c[5]="hellow";
printf("%s %s %s ",a,b,c);
printf(" ",sizeof(a),sizeof(b),sizeof(c));
}
(ans is hellow,hellow,hellow
6,2,5 )
3)
#include<stdio.h>
main()
float value=10.00;
printf("%g %0.2g %0.4g %f",value,value,value,value)
}
(ans is 10,10,10,10.000000)
4)
#include<stdio.h>
void function1;
int i-value=100;
main()
{
i-value=50;
function1;
printf("i-value in the function=",i-value);
printf("i-value after the function=",i-value);
}
printf("i-value at the end of main=",i-value);
functioni()
i-value=25;
THIS IS ROUGH IDEA OF THE PROGRAM
ANS ARE
1)i-value in the function=25;
2)i-value after the function=50;
3)i-value at the end of the main=100;
5)
main()
{
funct(int n);
{
switch(n)
case1:
m=2;
break;
case2:
m=5;
break;
case3:
m=7;
break;
default:
m=0;
}
THIS IS ROUGH IDEA:
(ANS:Out put is m=0)
REMAINING 5 PROGRAMS SOME WHAT LARGE AND COMPLICATED.ANY WHEY
I WILL SEND REMAINING PROGRAMS BEFORE 20th.
WIPRO_2004 PSG PAPER
1. Delhi is coded as CCIDD;then Bombay is ----------?
2. A,B are 2 watches
A-exact time
At 8am A& B correct time
B-1/2 min lost every hour
What is the time at 8 pm in B's watch?
3. analogies
plateau:topography
4. antonym -resistiveness
5. Jumbled words LEZUPK=--------?
6. mercenary :financial
Pecuniary: money
Philosophy :mind
Religion :spirit
Corporal:physical
7. +,* interchanged, 8&2 interchanged. What is 8*2+6?
Ans:22
8. Choose the logically right statements.
Mba's are in demand
a) R&S in demand
b)R is in demand
c) S is in demand
d)R&S are mba's
9. ans: kernel mode
10. Analytical reasoning
Floors rooms
1) --------- ----------------
2) --------- ---------------
3) ---------- ---------------
4) --------- ----------------
11. antonyms
spur,harbinger
12. analogies
surprise :exclamation
13.a-2yrs older than b
b-5 yrs younger than c
c=9
d-4 yrs younger than d
what is a's age?
14. jumbled paragraphs ,logical derivations
15. pgm_count=10;sum=0;
*temp=&count;
*temp=20;
temp=sigma(*temp)=count;
printf(sum,*temp,count);
what is the output?
16.which is not true?
Ans: binary should have 2 nodes
16. ans : binary search follows divide & conquer
17. main( )
printf(5+"facsimile")
output?
18. find the odd one out
mundance,bizarre,mystical,obscure
19. routing is done by network layer.
20. sentence completion
he made just a -----------effort.
Wipro Systems reasoning . Question on Binary tree Papers
21.Best sorting is same as worst sorting (Ans: HEAP
SORT)
22.Last 8 bits are used for subnet masking for which
classes Ans:CLASS A,B,C
23.What is the tool which connects user and computer -
ANS: INTERPRETER
24.Question on access time and recovery time
25. Question on call by value,call by reference, call
by lvalue and rvalue
26. Question on Binary tree
27) Which of the following languages needs compiler
a. """This option i don't remember:) :)"""
b. LISP
c. COBOL
d. ORACLE
Ans. ORACLE
28) which of the following has the direct connection
with the
operating system?
Ans. Process Scheduler
29) Which of the following connects LANS with same
protocol?
Ans. BRIDGES
30) Octal equivalent of (176) base 10 is
Ans. 260
31) Dialouges Sharing is done in which layer of OSI?
Ans. Session layer
32) Arithmatic and Logic calculations are done in
which Register
of
the microprocessor?
Ans. Accumulator
33)Give the output of the C program..
main()
{
int i=10,j;
for(j=0;j<1;j++)
{
int i=20;
printf("%d",i);
}
printf("%d",i);
}
a. 10,10
b. 10,20
c. Garbage Value
d. Multiple declaration error
Ans. 10,20
34)Give the output of the C program..
main()
{
int i;
printf("%d",i);
}
extern int i=20;
a. 20
b. 0
c. Error
d. Garbage Value
Ans. Garbage Value
35.identify two level logic gate
1.nand
2.ex or
3.inverter
ans:nand
36.if there 6 inputs to or gate how many combination
possible
1.2
2.32
3.64
ans-64
37.Identify error
main()
{
int n=6;
print("%d",n)
;
}
ans -no error
38.a hexadecimal odumeter reads 53F.What is next
reading?
1.532
2.53f
3.530
ans-530
39.one question on lower triangular matrix.Don't
remember fully
40.one question on sparse matrix.SAme don't remember
41.Tcp/ip is
a)connectionless
b)connection oriented
c)both a & b;
d)none
ans b
42)main()
{
int i;
i=2300*10+20+1900*0;
printf("%d",i);
}
a)0
b)-320000
c)230020
ans c
43)main()
{
int arr[5]={2,4};
printf("%d %d %d \n",arr[2],arr[3],arr[4]);
}
44)main()
{
struct e{
char name[20];
int a;
float b;
};
struct e ast={"Hell"};
print("%d %f \n",ast.a,ast.b);
}
45) what is the depth of a tree?
46. what is LAN?
47. what does modem do?
48. which data structure is not dynamic?
the aptitude section has 30 questions in 25 min.I
can't give you
the exact questions but tell you the pattern.
1. Rearranging the jumbled sentences in right order -
2. QUESTIONS each containing around 4 sentences
3. Pick the odd one out - 3 QUESTIONS
4. Passage questions-2
5. Series question -1 : 1,2,6,15,31,_ Ans:56
6. Antonyms (opposites): - 2
7. Analogies : - 2
8. Sentence completion - 2
9. Coding -2 Question .
for Ex-if OCTOBER IS something like 2367589
then TOBOCER IS ..........
10.ccdic corresponds to delhi then bombay corresponds
to
11.many questions on reading comprehension.(LOOK UP
BARRON AS WELL
AS IMS
CAT MATERIAL)
12.ANALYTICS
like
1.CACTUS GROW IN DESERTS
2.CACTUS HAVE THICK LEAVES.
3.DESERT PLANT HAVE THICK LEAVES.
does the third sentence concludes the first two.
Wipro Systems reasoning Papers
1.What is the bit?
2.One that connects different networks?
a) Routers b)bridges c) Gateways d)Repeaters
3.type of main to accept command line argument?
4.print syntax :
5.Not a primitive datastructure.
6.Tree to heap conversion
7.CHAIR is decoded as EGCHT.
then TABLE is decoded as .............
8.8,15,9,14,9,13,___________
9.Odd man out: handle,cycle,chain,break
10.Entice,Allure,hure,....
11.Medium resolution coordinates (0,0) to (199,...)
12.words in barrons odd man out a lot.
13.Jumbled
Wipro Systems.
--------------
Q1) john weighe twice as much as Marcia. Marcia's weight is 60% of
Bob's weight.Dave
weighs 50% of Lee's weighs 190% of John's wight. Which of these 5
persons wighs the least?
A) Bob B) Dave C) John D) Lee E) Marcia
Ans) E
Q2) A trip takes 6 hours to compleate. After traveling 1/4 of an hour,
1 3/8hours, and 2 1/3 hours, howmuch time does need to compleate
the trip?
A) 2 1/12hours
b) 2hours, 2 1/2 minutes
c) 2 hours,5minutes
d) 2 1/8 hours
ANS) B
Q3) It takes 30 days to fill a laboratory dish with bacteria. If the
size ofthe bactiria doubles each day, how long did it take
for the bactiria to fill one half of dish?
Ans) D ( 29days)
q4) A car wash can wash 8 cars in 18 minutes,
At this rate, how many cars can the car wash wash in 3 hours?
ANS) C ( 80)
Q5) If the ratio of the areas of 2 queres is 2:1, then the ratio
of the perimeters of the squares is
ANS) C ( sqrt(2):1 )
Q6) There are three types of tickets available for a concert:
orchestra
, which cost $12 each; balcony, which cost$9 each: and box, which
cost $25 each. There
were P orchestra tickets , B balcony tickets, and R box tickets sold
for
the concert.
Which of the following expressions gives the percentage of ticket
proceeds due to the
sale of orchestra tickets?
Ans) B 100*12P/(12P+9B+25R)
Q7). In a survey of town of Wasco, it was found that 65% of the people
surveyed watched the news on television, 40% read newspaper,
and 25% read a newspaper and watched the news on television.
What percent of the people surveyed neither watched the news
on the television nor read a newspaper?.
Ans: (E)20%
Q8). City B is 5 miles east of City A. City C is 10 miles southeast
of City B. Which of the following is the closest to the distance
from City A to City C?
Ans: (D) 14 miles
Q9). If the area of a square increases by 69%, then the side of the
square increased by
Ans: (B) 30%
Q10). There are 30 socks in a drawer. 60% of the socks are red and
the rest are blue. What is the minimum number of socks that
must be taken from the drawer without looking in order to be
certain that atleast two blue socks have been chosen?
Ans: (E) 20
-----------------------------------------------------------------
1) problem on stock, face value, brokerage
4 questions
see RS Agrawal, edition 1998, 454page,
tabulation(ex 5) loan disbusrense by 5 banks
6 questions are intermixed.
2) Averages-7( 124page of RS AGrawal) problem on example 3
problem on age
3) page-291- 16th, simple interest-2.5%
4) problem on calculation of cost price, given market price discount
on
ANS) 270
5) frequency of the letter in give strings
--------------------------------------------
reasoning:
----------
1) problem on series non verbel series around -12 questions
2) problem on direction test
3) problem on logical venn diagrams - 10 questions
refer test of reasonong Agrawal page 239
4) blood relations problem ans) Nephew
5) analogy
bouquet: flower :: chain: link--ans
The first section has 15 questions and 15 min.to
answer them.they
are very simple. just have a look at the topics
mentioned.
don't bank on the answers provided.check them out for
yourself.
1.a+b/c*d what will be its postfix notation?
2. what will be the prefix notation of the above
__expression?
3. to represent hexadecimal number in binary how many
digit are
required?
ans : 4
4.decimal to octal conversertion?
5.unix is written in which language?
6.which generation of computer used LSI?
7.TCP/IP has how many layers? ans : 5
8and9 simple programs on c language?
10 which name is associated with punched cards?
ans: herman
hollerith
11 which program converts mnenomics into machine
language? ans :
assembler
12 what are the uses of the registers of the computer
used for?
13 one question from database.
14 which has a compiler ? ans:cobol
15 what is the size of an integer type data?one option
was
.depends on compiler.
16.area where program can be rewritten.
ans-Eprom.
17.program which can be read &written.
ans-prom.
18.how does the user communicates with the kernel.
ans-API.
19.Two ques. on binary to decimal.
(1)5.125
ans-101.001.
(2)17625
20.question on QUICK SORT
Wipro New Interview Papers Placement Papers
1) abcD+abcd+aBCd+aBCD
then the simplified function is
( Capital letters are copliments of corresponding letters A=compliment of a)
[a] a [b] ab [c] abc [d] a(bc)* [e] mone
(bc)*=compliment of bc
Ans: e
2) A 12 address lines maps to the memory of
[a] 1k bytes [b] 0.5k bytes [c] 2k bytes [d] none
Ans: b
3) In a processor these are 120 instructions . Bits needed to impliment
this instructions
[a] 6 [b] 7 [c] 10 [d] none
Ans: b
4) In 8085 microprocessor READY signal does.which of the following
is incorrect statements
[a]It is input to the microprocessor
[b] It sequences the instructions
Ans : b
5) Return address will be returned by function to
[a] Pushes to the stack by call
Ans : a
6)
n=7623
{
temp=n/10;
result=temp*10+ result;
n=n/10
}
Ans : 3267
7) If A>B then
F=F(G);
else B>C then
F=G(G);
in this , for 75% times A>B and 25% times B>C then,is 10000 instructions
are there ,then the ratio of F to G
[a] 7500:2500 [b] 7500:625 [c] 7500:625 if a=b=c else 7500:2500
8) In a compiler there is 36 bit for a word and to store a character 8bits are
needed. IN this to store a character two words are appended .Then for storing a K characters string, How many words are needed.
[a] 2k/9 [b] (2k+8)/9 [c] (k+8)/9 [d] 2*(k+8)/9 [e] none
Ans: a
9) C program code
int zap(int n)
{
if(n<=1)then zap=1;
else zap=zap(n-3)+zap(n-1);
}
then the call zap(6) gives the values of zap
[a] 8 [b] 9 [c] 6 [d] 12 [e] 15
Ans: b
10) Virtual memory size depends on
[a] address lines [b] data bus
[c] disc space [d] a & c [e] none
Ans : a
2) Critical section is
[a]
[b] statements which are accessing shared resourses
Ans : b
11) load a
mul a
store t1
load b
mul b
store t2
mul t2
add t1
then the content in accumulator is
Ans : a**2+b**4
12. Add 79H and 86H and tell the contents of flags
13. Scr is used for _____ ( ac, dc , both )
14. Push pull amplifier is used to remove which harmonics ( even , odd , both )
15. PAM is demodulated using ___ ( low pass filter , high pass filter )
16. 16k memory is needed. How many chips with 12 address buses and 4 data
buses are needed.
17. AM wave is detected using _________ detector
18. Which flip flop is used for shift registers
19. Program counter does what __ (stores a memory address, address of the present instruction)
20. In a bistable multivibrator communication capacitor is used for ______ ( speed up response , ac coupling)
21. Totem pole is what?
22. Time costant for an integrator and differentiator should be ( small , high etc.)
23.TV waves are __ ( sky waves , space waves etc.)
24.Which configuration has highest i/p imp. ( ce , cb , cc )
25. Parabolic antenna with 2degree angle. What is its directivity.
26. Given 10 mhz pe modulation and we got a 100 mhz band. How many channels can be there.
27. If o/p power is doubled by how much does the sound increase ( 1db,2db,3db
WIPRO Latest IT Fresher Placement Aptitude Question Papers
26. If the letters of the word "rachit" are arranged in all possible ways and these words are written out as in a dictionary, what is the rank of the word "rachit".
(a) 485
(b) 480
(c) 478
(d) 481
Ans. (d)
27. Ravi's salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is
(a) 20%
(b) 25%
(c) 33 1/3%
(d) 30%
Ans. (c)
28. A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job
(a) 48
(b) 34 2/7
(c) 44
(d) 45
Ans. (a)
29. How long will a train 100m long traveling at 72kmph take to overtake another train 200m long traveling at 54kmph
(a) 70sec
(b) 1min
(c) 1 min 15 sec
(d) 55 sec
Ans. (b)
30. What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?
(a) 3/2
(b) 4
(c) 3
(d) 3/4
Ans. (a)
31. Which of the following parameters is the same for molecules of all gases at a given temperature?
(a) Mass
(b) Momentum
(c) Speed
(d) Kinetic energy
Ans. (d)
32. A solid is completely immersed in liquid. The force exerted by the liquid on the solid will
(a) Increase if it is pushed deeper inside the liquid
(b) Change if its orientation is changed
(c) Decrease if it is taken partially out of the liquid
(d) None of the above
Ans. (c)
33. Select the correct statements
(a) A simple harmonic motion is necessarily periodic
(b) An oscillatory motion is necessarily periodic
(c) A periodic motion is necessarily oscillatory
(d) All of the above
Ans. (a)
34. An electron is injected into a region of uniform magnetic flux density with the components of velocity parallel to and normal to the flux. What is the path of the electron?
(a) Helix
(b) Parabola
(c) Circle
(d) Rectangle
Ans. (a)
35. A constant voltage is applied between the 2 ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
(a) both the length and radius of the wire are halved.
(b) both the length and radius of the wire are doubled
(c) the radius of the wire is doubled
(d) the length of the wire is doubled
Ans. (b)
36. If Young's double slit experiment is performed in water
(a) the fringe width will decrease
(b) the fringe width will increase
(c) the fringe width remains unchanged
(d) there will be no fringe
Ans. (a)
37. The shape of a spot of light produced when bright sunshine passes perpendicular through a hole of very small size is
(a) Square, because the hole is a square
(b) Round, because it is an image of the sun
(c) Round with a small penumbra around it
(d) Square with a small penumbra
Ans. (b)
Select the alternative that logically follows from the two given statements.
38. Some forms are books
All books are made of paper
(a) Some forms are made of paper
(b) Some forms are not made of paper
(c) No forms are made of paper
(d) None of the above
Ans. (a)
39. All toffees are chocolates
Some toffees are not good for health
(a) Some chocolates are not good for health
(b) Some toffees are good for health
(c) No toffees are good for health
(d) Both (a) and (b)
Ans. (a)
The questions 40-46 are based on the following pattern.The problems below contain a question and two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the questions.The correct answer is
(A) If statement (I) alone is sufficient but statement (II) alone is not sufficient.
(B) If statement(II) alone is sufficient but statement(I) alone is not sufficient.
(C) If both statements together are sufficient but neither of statements alone is sufficient.
(D) If both together are not sufficient.
(E) If statements (I) and (II) are identical.
43. If a ground is rectangular, what is its width?
(I) The ratio of its length to its breadth is 7:2
(II) Perimeter of the playground is 396 mts.
Ans. C
44. If the present age of my father is 39 yrs and my present age is x yrs, what is x?
(I) Next year my mother will be four times as old as i would be.
(II) My brother is 2 years older than I and my father is 4 years older than my mother.
Ans. C
45. How many brothers and sisters are there in the family of seven children?
(I) Each boy in the family has as many sisters as brothers
(II) Each of the girl in the family has twice as many brothers as sisters
Ans. D
46. x is not equal to 0, is x + y = 0?
(I) x is the reciprocal of y
(II) x is not equal to 1
Ans. A
Following questions are based on letter's analogy.First pair of letters should have the same relationship as the second pair of letters or vice versa.
47. ? : BGLQ : : YDIN : VAFK
(a) EKNS
(b) DKMT
(c) DLMS
(d) EJOT
Ans. (d)
48. NLO : RPS : : ? : ZXA
(a) VUW
(b) VTR
(c) VTW
(d) TRP
Ans. (c)
49. If "segment" is coded as rffndou, then "ritual" is coded as
(a) shutbm
(b) qjutbk
(c) qhutbk
(d) qhubtk
Ans. (c)
50. If "football" is "cricket" ,"cricket" is "basketball" ,"basketball" is "volleyball","volleyball" is "khokho" and "khokho" is cricket, which is not a ball game?
(a) cricket
(b) football
(c) khokho
(d) basketball
Ans. (a)
51. Which of the following is a recursive set of production
(a) S --> a|A, A --> S
(b) S --> a|A, A --> b
(c) S -->aA, A-->S
(d) None of these
Ans. (c)
WIPRO Latest IT Fresher Placement Latest Questions Papers
Paper 1
1.When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts
(a) In the backward direction on the front wheel and in the forward direction on the rear wheel.
(b) In the forward direction on the front wheel and in the backward direction on the rear wheel.
(c) In the backward direction on both the front and rear wheels.
(d) In the backward direction on both the front and rear wheels.
Ans. (d)
2. A certain radioactive element A, has a half life = t seconds.In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly
(a) 29%
(b) 15%
(c) 10%
(d) 45%
Ans. (a)
3. Which of the following plots would be a straight line ?
(a) Logarithm of decay rate against logarithm of time
(b) Logarithm of decay rate against logarithm of number of decaying nuclei
(c) Decay rate against time
(d) Number of decaying nuclei against time
Ans. (b)
4. A radioactive element x has an atomic number of 100.It decays directly into an element y which decays directly into element z. In both processes a charged particle is emitted. Which of the following statements would be true?
(a) y has an atomic number of 102
(b) y has an atomic number of 101
(c) z has an atomic number of 100
(d) z has an atomic number of 101
Ans. (b)
5. If the sum of the roots of the equation ax2 + bx + c=0 is equal to the sum of the squares of their reciprocals then a/c, b/a, c/b are in
(a) AP
(b) GP
(c) HP
(d) None of these
Ans. (c)
6. A man speaks the truth 3 out of 4 times. He throws a die and reports it to be a 6. What is the probability of it being a 6?
(a) 3/8
(b) 5/8
(c) 3/4
(d) None of the above
Ans. (a)
7. If cos2A + cos2B + cos2C = 1 then ABC is a
(a) Right angle triangle
(b) Equilateral triangle
(c) All the angles are acute
(d) None of these
Ans. (a)
8. Image of point (3,Cool in the line x + 3y = 7 is
(a) (-1,-4)
(b) (-1,4)
(c) (2,-4)
(d) (-2,-4)
Ans. (a)
9. The mass number of a nucleus is
(a) Always less than its atomic number
(b) Always more than its atomic number
(c) Sometimes more than and sometimes equal to its atomic number
(d) None of the above
Ans. (c)
10. The maximum KE of the photoelectron emitted from a surface is dependent on
(a) The intensity of incident radiation
(b) The potential of the collector electrode
(c) The frequency of incident radiation
(d) The angle of incidence of radiation of the surface
Ans. (c)
11. Which of the following is not an essential condition for interference
(a) The two interfering waves must be propagated in almost the same direction or the two interfering waves must intersect at a very small angle
(b) The waves must have the same time period and wavelength
(c) Amplitude of the two waves should be the same
(d) The interfering beams of light must originate from the same source
Ans. (c)
12. When X-Ray photons collide with electrons
(a) They slow down
(b) Their mass increases
(c) Their wave length increases
(d) Their energy decreases
Ans. (c)
13. An electron emits energy
(a) Because its in orbit
(b) When it jumps from one energy level to another
(c) Electrons are attracted towards the nucleus
(d) The electrostatic force is insufficient to hold the electrons in orbits
Ans. (b)
14. How many bonds are present in CO2 molecule?
(a) 1
(b) 2
(c) 0
(d) 4
Ans. (d)
15. In a balanced chemical equation (a) Atoms are conserved
(b) Molecules are conserved
(c) Moles are conserved
(d) Reactant and product molecules are preserved
Ans. (a)
16. How many grams of NaOH will react with 0.2 equivalent of HCl?
(a) 0.59
(b) 0.285
(c) 1.18
(d) none of these
Ans. (a)
17. Which of the following is least acidic
(a) Ortho-cresol
(b) Para-cresol
(c) Phenol
(d) Meta-cresol
Ans. (b)
18. In Reimer-Tiemann's reaction, the reaction intermediate is
(a) Carbene
(b) Dichloro carbene
(c) Carbonion
(d) Carbonium ion
Ans. (b)
19. Which of the following is most acidic?
(a) C2H5OH
(b) CH3CHOHCH3
(c) Ethanol
(d) CH3OH
Ans. (b)
20.A catalyst
(a)always slows down the reaction
(b)always starts a rection that would not have ocurred at all otherwise
(c)causes changes in the rate of the reaction
(d)changes the quantities of the products formed
Ans. (c)
21.The rate of the first order reaction depends on the
(a) Concentration of the reactant
(b) Concentration of the product
(c) Time
(d) Temperature
Ans. (d)
22. The most abundant element in the universe is
(a) Hydrogen
(b) Helium
(c) Oxygen
(d) Silicon
Ans. (a)
23. Integrate 3x + 5 / (x3-x2-x+1)
(a) 1/2 log | (x+1)/(x-1) | - 4/(x-1)
(b) log |2+tanx|
(c) -(1+logx)/x
(d) 2 log|(tanx)/(tanx+2)
Ans. A
24. If y=cos-1(cosx + 4sinx)/(17)1/2, then dy/dx is
(a) 0
(b) 1
(c)-1
(d) none of these
Ans. (b)
25. If the sum of n terms of two series of A.P are in the ratio 5n+4:9n+6. Find the ratio of their 13th terms
(a) 129/231
(b) 1/2
(c) 23/15
(d) None of the above
Ans. (a)
Wipro Interview Papers Placement Latest PapesAptitude
21.The rate of the first order reaction depends on the (a) Concentration of the reactant Ans. (d)
(a) Hydrogen Ans. (a)
(a) 1/2 log | (x+1)/(x-1) | - 4/(x-1) Ans. A
(a) 0 Ans. (b)
(a) 129/231 Ans. (a)
(a) 485 Ans. (d)
(a) 20% Ans. (c)
(a) 48 Ans. (a)
(a) 70sec Ans. (b)
(a) 3/2 Ans. (a)
(a) Mass Ans. (d)
(a) Increase if it is pushed deeper inside the liquid Ans. (c)
(a) A simple harmonic motion is necessarily periodic Ans. (a)
(a) Helix Ans. (a)
(a) both the length and radius of the wire are halved. Ans. (b)
(a) the fringe width will decrease Ans. (a)
(a) Square, because the hole is a square Ans. (b) Select the alternative that logically follows from the two given statements. 38.
(a) Some forms are made of paper Ans. (a)
(a) Some chocolates are not good for health Ans. (a) The questions 40-46 are based on the following pattern.The problems below contain a question and two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the questions.The correct answer is (A) If statement (I) alone is sufficient but statement (II) alone is not sufficient.
(I) The ratio of its length to its breadth is 7:2 Ans. C
(I) Next year my mother will be four times as old as i would be. Ans. C
(I) Each boy in the family has as many sisters as brothers Ans. D
(I) x is the reciprocal of y Ans. A Following questions are based on letter's analogy.First pair of letters should have the same relationship as the second pair of letters or vice versa. 47. ? : BGLQ : : YDIN : VAFK (a) EKNS Ans. (d)
(a) VUW Ans. (c)
(a) shutbm Ans. (c)
(a) cricket Ans. (a)
(a) S --> a|A, A --> S Ans. (c) |
All Papers |
Wipro Interview Papers Placement PapesAptitude
1.When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts
(a) In the backward direction on the front wheel and in the forward direction on the rear wheel.
(b) In the forward direction on the front wheel and in the backward direction on the rear wheel.
(c) In the backward direction on both the front and rear wheels.
(d) In the backward direction on both the front and rear wheels.
Ans. (d)
2. A certain radioactive element A, has a half life = t seconds.In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly
(a) 29%
(b) 15%
(c) 10%
(d) 45%
Ans. (a)
3. Which of the following plots would be a straight line ?
(a) Logarithm of decay rate against logarithm of time
(b) Logarithm of decay rate against logarithm of number of decaying nuclei
(c) Decay rate against time
(d) Number of decaying nuclei against time
Ans. (b)
4. A radioactive element x has an atomic number of 100.It decays directly into an element y which decays directly into element z. In both processes a charged particle is emitted. Which of the following statements would be true?
(a) y has an atomic number of 102
(b) y has an atomic number of 101
(c) z has an atomic number of 100
(d) z has an atomic number of 101
Ans. (b)
5. If the sum of the roots of the equation ax2 + bx + c=0 is equal to the sum of the squares of their reciprocals then a/c, b/a, c/b are in
(a) AP
(b) GP
(c) HP
(d) None of these
Ans. (c)
6. A man speaks the truth 3 out of 4 times. He throws a die and reports it to be a 6. What is the probability of it being a 6?
(a) 3/8
(b) 5/8
(c) 3/4
(d) None of the above
Ans. (a)
7. If cos2A + cos2B + cos2C = 1 then ABC is a
(a) Right angle triangle
(b) Equilateral triangle
(c) All the angles are acute
(d) None of these
Ans. (a)
8. Image of point (3,8) in the line x + 3y = 7 is
(a) (-1,-4)
(b) (-1,4)
(c) (2,-4)
(d) (-2,-4)
Ans. (a)
9. The mass number of a nucleus is
(a) Always less than its atomic number
(b) Always more than its atomic number
(c) Sometimes more than and sometimes equal to its atomic number
(d) None of the above
Ans. (c)
10. The maximum KE of the photoelectron emitted from a surface is dependent on
(a) The intensity of incident radiation
(b) The potential of the collector electrode
(c) The frequency of incident radiation
(d) The angle of incidence of radiation of the surface
Ans. (c)
11. Which of the following is not an essential condition for interference
(a) The two interfering waves must be propagated in almost the same direction or the two interfering waves must intersect at a very small angle
(b) The waves must have the same time period and wavelength
(c) Amplitude of the two waves should be the same
(d) The interfering beams of light must originate from the same source
Ans. (c)
12. When X-Ray photons collide with electrons
(a) They slow down
(b) Their mass increases
(c) Their wave length increases
(d) Their energy decreases
Ans. (c)
13. An electron emits energy
(a) Because its in orbit
(b) When it jumps from one energy level to another
(c) Electrons are attracted towards the nucleus
(d) The electrostatic force is insufficient to hold the electrons in orbits
Ans. (b)
14. How many bonds are present in CO2 molecule?
(a) 1
(b) 2
(c) 0
(d) 4
Ans. (d)
15. In a balanced chemical equation
(a) Atoms are conserved
(b) Molecules are conserved
(c) Moles are conserved
(d) Reactant and product molecules are preserved
Ans. (a)
16. How many grams of NaOH will react with 0.2 equivalent of HCl?
(a) 0.59
(b) 0.285
(c) 1.18
(d) none of these
Ans. (a)
17. Which of the following is least acidic
(a) Ortho-cresol
(b) Para-cresol
(c) Phenol
(d) Meta-cresol
Ans. (b)
18. In Reimer-Tiemann's reaction, the reaction intermediate is
(a) Carbene
(b) Dichloro carbene
(c) Carbonion
(d) Carbonium ion
Ans. (b)
19. Which of the following is most acidic?
(a) C2H5OH
(b) CH3CHOHCH3
(c) Ethanol
(d) CH3OH
Ans. (b)
20.A catalyst
(a)always slows down the reaction
(b)always starts a rection that would not have ocurred at all otherwise
(c)causes changes in the rate of the reaction
(d)changes the quantities of the products formed
Ans. (c)
Wipro Interview Papers Placement Papers
19. Which of the following statements represent Raoult's Law
(a) Mole fraction of solvent = ratio of vapour pressure of the solution to vapour pressure of the solvent
(b) Mole fraction of solute = ratio of vapour pressure of the solution to vapour pressure of the solvent
(c) Mole fraction of solute = lowering of vapour pressure of the solution
(d) Mole fraction of solvent = lowering of vapour pressure of the solution
Ans. (a)
20. Elements having the same atomic number and the same atomic mass are known as
(a) Isotopes
(b) Isotones
(c) Isomers
(d) None of the above
21.Which is the most acidic amongst
(a) Nitrophenol
(b) O-toulene
(c) Phenol
(d) Cresol
22. Pure water does not conduct electricity because it is
(a) Almost not ionised
(b) Low boiling
(c) Neutral
(d) Readily decomposed
Ans. (a)
23. In a salt bridge, KCl is used because
(a) It is an electrolyte
(b) The transference number of K+ and Cl¯ is nearly the same
(c) It is a good conductor of electricity
(d) All of the above
Ans. (d)
24. A depolarizer used in the dry cell batteries is
(a) KCl
(b) MnO2
(c) KOH
(d) None of the above
Ans. (b)
25. The hydrolysis of alkyl halides by aqueous NaOH is best termed as
(a) Electrophylic substitution reaction
(b) Electrophylic addition reaction
(c) Nnucleophylic addition reaction
(d) Nucleophylic substitution reaction
Ans. (d)
26. The hydrocarbon that gives a red precipitate with ammoniacal cuprous chloride is (where 'º' means a triple bond)
(a) CH3-CH2-CH2-CH3
(b) CH3-CºC-CH3
(c) CH2=CH-CH=CH2
(d) CH3-CH2-CºCH
Ans. (d)
27. Which of the following reagents is neither neutral nor basic
(a) Lucas' reagent
(b) Tollen's reagent
(c) Bayer's reagent
(d) Fehling's solution
Ans. (a)
28. The substance which is most easily nitrated
(a) Toluene
(b) Bbenzene
(c) Nitrobenzene
(d) Chlorobenzene
Ans. (a)
29. Carbylamine reaction is a test for
(a) Primary amine
(b) Secondary amine
(c) Tertiary amine
(d) Quarternary ammonium salt
Ans. (a)
30. Which of the following oxides cannot be reduced by carbon to obtain metal
(a) ZnO
(b) Al2O3
(c) Fe2O3
(d) PbO
Ans. (b)
31. Which of the following is not an oxide ore?
(a) Cassiterite
(b) Siderite
(c) Pyrolusite
(d) Bauxite
Ans. (b)
32. Which among the following is called philosopher's wool
(a) Cellulose
(b) Calamine
(c) Stellite
(d) Cerussite
Ans. (c)
33. Out of 10 white, 9 black and 7 red balls, in how many ways can we select one or more balls
(a) 234
(b) 52
(c) 630
(d) 879
Ans. (d)
34. A and B throw a dice. The probability that A's throw is not greater than B's is
(a) 5/12
(b) 7/12
(c) 11/12
(d) 5/36
Ans. (b)
35. Given two numbers a and b. Let A denote the single AM between these and S denote the sum of n AMs
between them. Then S/A depends upon
(a) n
(b) n,a
(c) n,b
(d) n,a,b
Ans. (a)
36. If the sum of the roots of the equation ax²+bx+c=0 is equal to the sum of the squares of their reciprocals,
then, a/c, b/a, c/b are in
(a) AP
(b) GP
(c) HP
(d) None of the these
Ans. (c)
In the following questions ~ represents the integral sign-for eg. 1~2[f(x)] means integration of
the function f(x) over the interval 1 to2.
37. Value of -1~2[|2-x²|]dx, ie integration of the function |2-x²| over the interval -1 to 2.
(a) 0
(b) 1
(c) 2
(d) None of the above
Ans. (d)
38. If 0~P[log sinx]dx=k,then the value of 0~P/4[log(1 + tan x)]dx ,where P stands for pi,is
(a) -k/4
(b) k/4
(c) -k/8
(d) k/8
Ans. (c)
39. If a,b,c be in GP and p,q be respectively AM between a,b and b,c then
(a) 2/b=1/p+1/q
(b) 2/b=1/p-1/q
(c) 2=a/p-c/q
(d) None of the above
Ans. (a)
40. A solution of KMnO4 is reduced to MnO2 .The normality of solution is 0.6.The molarity is
(a) 1.8M
(b) 0.6M
(c) 0.1M
(d) 0.2M
Ans. (d)
The questions 41-46 are based on the following pattern.The problems below contain a question and two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the questions.The correct answer is
(A) If statement (I) alone is sufficient but statement (II) alone is not sufficient.
(B) If statement(II) alone is sufficient but statement(I) alone is not sufficient.
(C) If both statements together are sufficient but neither of statements alone is sufficient.
(D) If both together are not sufficient.