Wipro Sample Paper.. at 9:47 AM

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)

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)

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
travelling at 72kmph take to overtake another train
200m long travelling 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
elecrton 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 not sufficient

40. What
is the volume of a cubical box in cubic centimetres?
(I) One face of the box
has an area of 49 sq.cms.
(II) The longest diagonal of the box is 20
cms.
Ans. D

41. Is z positive?
(I) y+z is positive
(II) y-z is
positive
Ans. E

42. Is x>y ? x, y are real numbers?
(I) 8x =
6y
(II) x = y + 4
Ans. B

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)