Wipro
2000
Total 44 general + 12 tech there were 75 questions NO NEGATIVE MARKINGS
Two Parts:1)general-55 questions
2) dept wise technical -20 qns Part-1:20 chemistry+ 5 physics+ 15 maths+ 15 logical
Physics:
1. A free electron is placed in a electromagnetic field, it will move in
the direction of
a)Electric Field
b) Magnetic Field c)Wave Propogation
d)
2. Elements with same atomic & mass no are called
a) isotope b) isotone c) isobar d) isomer
3. |(2x-3)/(x?x+1)?= (where '|' is for integration )
a)
b) c)
d)
4. If x=arcsine(t) and y=log(1-t?then d2y/dx2 at t=1/2
=? a) b)
c) d)(ans:-8/3)
5. Calculate the sum of 100 terms common to the series
{17,21,25....} and {16,21,26...}
6. Find the sum upto n terms 1+2*x+3*x?........ Where
x=1+1/n (ans n?
7. A speaks true in 70% of cases and B in 80% then what is prob. that A & B Always contradicts to each
other
(ans:0.38)
8. Fact: I)all dogs are trees II) trees provide wood
conclusion:I)dogs provide wood
9. Rod and a man are stationary with respect to lab.
the man measures the rod in following ways
1) rod moves parallel to man the size reduces
2) man move parallel to rod size reduces
10 A man six feet tall is standing near a pole. On
top of the pole is a light. What is the length of theshadow cas
by the man?
a) man is 6 meter from the pole
b) the pole is 12 meters above ground
11. Train T leaves town A for town B and travels at a constant rate speen. At the same time , train S leaves
town B for
town A and also travels at constant rate
speed. Town C ois between A and B. Which train is travelling fast? Train
A,C,B lie in
astraight line.
a) Train S arives at town C before Train T. b) C is
closer yto A than to B
12. What is the value such that the roots of
x^3+3x+a=0 lies in [0,1]
A) 1 B)
-1 C)
3 D) none.
13. A compound has C 40% H by 6.07% & O by 53.93%.
find ythe formula (ans:CH2O)
14. If words are forme by SURITI and arranged in a
dictionary what will be the position of SURITI? (ans236)
15. In an exam. There are 2 parts each containing 5
qns. one have to answer 6qns with condition atmost 4 from one
group. in how many wayss one can answer?(ans
200)
16. In how many ways 7 distinct objects can be
distributed among 3 children?(ans 7P30
17. 3 GRE(Barrons 12th edition page 397(7-11))
analytical type qns.(question is littel different)
18. Ram walked 2Km north then moves to his right to
go 4Km. Then again moves to his right to go 4Km. Again moves
right to go 4km. where he meets Radha.
a) what is the direction at the first
turn?(E.W.N.S)
b) what is the distance between starting pt. and the
terminating pt?
20. qns Like :L if the code of the word EMFATION is
'35248671' then
a) what is the word of the code '2771' ?
b) what is the code of the word FEAT ?
x x
21. what is the value of Lt (|exp(x)dx/|exp(2x?dx) ?
x->@ 0 0 ('|' is for integration sign)
22. Given initial state (P1,V1) and final state(P2,V2). state is changed by 2 processes. what
term is common to two
processes?
(ans: dq-dw)
23. At NTP how much butane can be burnt by a litre of
oxygen) (ans: 72.8 gms0
24. Saturated plate currentin a triod depends on
A)...B) (ans: Temp)
25. In which type of sort. for both average case and
worst case efficiency is equal to nlogn? (ans: Merge sort)
26. Two circles of unequal radius intersect each other
in A)1 pt B)2 pts. C)3 pts. D)nomne (ams:2 pts)
29. 4 radicals was given which one shows positive inductive effect?(ans NH2-)
30. Find the curve satisfying xdy-ydx+logxdx=0 and
passing through (1,-1)
31. Emitter and collector are placed horizontally with
collector above. There is a saturation current, if there is a vertical
electric field applied downwards
what happen to the emmited electrons.
a) stopping potential decreases b) K.E increases
(ans:b))
32. 70 cars can park in n rows with equal no in each rows, two cars are eliminated from each rows but 4
rows are added.
find ythe no n(ans:10)
33. value of f(x)=(1-cos(1-cos(x)))/x^4 for which it is continuous at x=0 (ans: 1/8)
34. infix notation is given determine the postfix (like as infix a-b/(c*d$e) postfix
abcde$*/-
35. if A & B play a game and each is required to tell
a no from 1-25 what's the probablity that they will contradict.
probable answer(24/25)
36. 3/(1?2? + 5/(1?2?3? + 7/(1?2?3?4? + ..........
37. which is not the ideal solution (probable ans: ethanol + water)
38. cholorine + toluene in presense of anyhydrous FeCl2-----> orto+para cloro toluene
40. honeybee if touched will sting, man touches the bee
conclusion: man is stucked by honeybee
41. we have 10 different digits to form a five digit no with at least one digit repeated.
42. 20ml of H2S + 20ml of Cl2 will produce?(probable ans 120 ml of.........)
43 . period of y=sin((2t+3)/6pi) is ?
44. x rays emitted from a tube has wavelength between
a) lie greater then a particular wave length
b)between maximum and minimum range (ans : b)
Part 2
questions for department
1. Youngs modulus for tension Yt is x times Youngs modulus
for compression Yc.
ANS : 0.5
2. In a two stage air compression total work is 2n/ (n-1)
*P1 V1[(P3/P1)^(n-1)/2n -1] what is the work done in
high press cylinder if minimum work
condition is applied.
3. Cementite is Fe3c.
4. The friction radius in case of an bearing for uniform
press is [2/3*((r2^2+r1^2)/(r2^2-r1^2))]
5. About pitch to be cut on job on leath having perticular
pitch on lead.pitch=9/5 with 4tpi find
change gears
6. A beam is simply supported at end pts A & B. what is
the moment at point A due to uniformly distributed
load W.
7. (inverted delta ie inverted triangle) is a symbl
of.......
8 If work done in LP and HP cylenders, in
compressor are W1 and W2 with politropic index n1 and n2 what is
ratio of W1/W2..
9. Shaping machine work done (ans; LNC/1000)
10. 10 ton cannon fires a shell of 50kg with a muzzle velocity
900m/s it takes 0.04 seconds to come out from
barrel when fired at 30
degree..find the velocity of cannon.
11. Fins occur due to ......(casting defect)
12. By which of the following methods a job if heated will
not warp?
a) vertical b)clamped
on both sides c)clamped at regular intervels three or four
question on hoop stresses in
spheres and
cylenders.....
13. employe 1.-you told me ,"two years ago, you
have worked 3 times as much as me. employe2.-yes, isaid
that now i have worked
twice as much as you. how many years both of them have
worked.------4&
14. there are 20 flag . aperson starts from firstflag
and goes up to 12th flag in 24 sec . what is the total time he
took to reach 20th
flag.---------24*19/11
15. mr X says that the 2 dial of the watch concide
every 65 min. is the or gaining the time, and by how much in a
hour.-----60/143min.
16. A person leaves the city at const speed. on his
way he saw a mile-stone,a2 digit no. after going for 1 hour , he
sees another ,
milestone having the same number in reverse order still further 1 hour
he again sees the mile
stone
showing the two number but a zero in between. what is the velocity of x
.---------------ans 45km per
hour
17. MOON
SOON
NOON
-------
JUNE FIND JUNE?
----------ANS - 9326
18. a,b,C,D HAS 4 CARDS IN FRONT OF THEM. and
the colour of the cards on 2 faces are diffrent. 2 red
2green, 2
blue.
a says- yellow or blue
b says- niether yellow nor blue
c says blue or yellow
d says- blue or green if the open
face colour is the order red, green,red,blue. find the hidden colour,
if 2 of them says lie.-----------red green red green yellow blue yellow
blue
19. A's wife died .he is living with his niece.B is a
widow an dliving with her daughter and C is living with hr
wife.C's wife
suggested that they should live together.each member of the group should
contribute 25/- and
the rest should be
distributed equally .if the monthly expense was rs 92/- and each got
whole sum of money
(no fraction) after
cutting their expenses what is amount each will get? -----rs 2/-
20. A man leaves home for his office in time
according to his watch but in the office he finds that he is not on time
and checks his
watch.he finds that his watch shows one hour when actually 65 min has
been passed say
whether his watch
loses or gain time and by what amount per hour? 4 min 55sec
21. Three people A,B,C live in a place , their
occupations are policeman , fireman , teacher. out of the five
conditions
conditions , only two are true
(a) A
is the neighbour of techer.
(b) B
is the neighbour of techer.
(c)
policeman and fireman are neighbour of C.
(d)
all of them are neighbour of each other.
(e) B
is the neighbour of fireman.
find their occupation of a,b,c.
ans. a-policeman
b-fireman
c-teacher.