Wipro Aptitude+ Technical..

Q1. Two
bodies changed from p1v1 to p2v2 state in two ways. The heat supplied is

delta Q and
work done is delta W
Then what is constant in these two
processes
(a) delta q
(b) delta w
(c) delta q + delta w
(d) delta
q - delta w
Ans. (d)

Q2. _______ have same atomic number and same mass
number are
(a)
Isotopes
(b) Isotones
(c) Isomers
(d) Isobars
Ans.
(c)

Q3. When a free electron is placed in a plane of electro magnetic
then it moves
in
(a) in the direction of the electric field
(b) in the
direction of magnetic field
(c) of propagation of wave
(d) of the plane
containing magnetic field and propagation direction.

Q4. Name the
phenomena in which one proton is jumped from one isomer to another
isomer to
create two different elements

(a) functional isomerisim
(b) sterio
merisim
(c) tauto merisim
(d) penta merisim

Ans. (c)

Q5. In
the below compounds which one has 40% C ,6.7% H and 53.3 % O what is its

empherical formula
(a) CHO
(b) CH2
(c) C2H2O2
(d)
C2H3O2
Ans: (b)

Q6. X rays are coming from X ray tube, the wavelength
is _______ a certain
wavelength/s

(a) below
(b) above
(c)
inbetween
(d) out of

Ans. (c)
Q7. In a triode valve in order to increase the saturation current
what has to be
done
(a) increase plate voltage
(b) reduce distance
between grid and plate
(c) increase cathode potential
(d) reduce grid
potential

Ans. (d )

Q8. Seven different toys are distributed among
3 children how many different
ways are possible?
(a) 7C3
(b) 7P3

(c) 3 7
(d) 7 3

Ans. (c)

Q9. A, B ans C are three speakers.
They have to speak randomly along with
another 5 speakers in a
function.
A has to speak before B and B has to speak before C. What is the

probability.

Ans. 1/6

Q10. If dy = (secx + ytanx)dx, Then the
curve is

(a) x = ycosx
(b) x = ysinx
(c) x = ytanx
(d) x =
ysecx

Ans. (a)

Q11. Two series are 16,21,26.... and
17,21,25.....
What is the sum of first hundred common numbers
(a)
101100
(b) 110100
(c) 101110
(d) 110101
Ans. (a)

Q12. There
are two sections in a question paper each contain five questions. A
students
has to answer 6 questions.
Maximum no. of questions that can be answered from
any section is 4.
How many ways he can attempt the paper?

(a)
50
(b) 100
(c) 120
(d) 200
Ans. (d)

Q13. a and b are two
numbers selected randomly from 1,2,3.... 25 what is the
probability of a and
b are not equal.
(a) 1/25
(b) 24/25
(c) 13/25
(d) 2/25
Ans.
(b)

Q14. The sum of the series 1 + 1(1+1/n) + 3(1+1/n)2 + ..... is equal
to?
Ans. n2

Q15. Two circles of different radii intersects each other
what is the maximum no
of intersections
(a) 0
(b) 1
(c) 2
(d)
3
Ans. (c)

Q16. If x= sin-1(t), y = log(1-t2), find d2y/dx2 when
t=1/2
(a) 1
(b) 0
(c) -8/3
(d) -2/3
Ans. (c)

Q17. If x
approaches infinity , then (òex dx )/( òe2xdx) is ?
(a) 1
(b) 0
(c)
-1
(d) 2
Ans. (a)

Q18. If f(x)=1-cos(1-cosx)/x4 is continuos at
f(0) then what is x
(a) 1
(b) 0
(c) 1/4
(d) -1/4
Ans.
(c)

Q19. For the word SURITI, if you arrange the letters in dictionary
order then
what is its rank?
(a) 234
(b) 235
(c) 236
(d)
237
Ans. (c)

Q20. Period of sin ((2t + 3) / 6 pi)
(a) 6pi
(b)
6pi2
(c) 3pi
Ans. (b)

Q21 - Q23. Four questions given on the below
data
X,Yand Z are senior engineers. A,B,C,D are junior engineers. Company
wants to
select 4 enginers. Two will be senior and two will be juniors. The
company wants
these engineers to work in the most productive way so they
respect each person's
likes/dislikes.
Y is not friends with A
Z is
not friends with C
B is not friends with A
If B is selected then who
will be the remaining 4 members ?
If C is selected, Z and ___ cannot be
selected?
D is always selected if ___ is selected?

Q24. A speaks
truth 70% of the times, B speaks truth 80% of the times.
What is the
probability that both are contradicting each other is ?

Q25.
ò((2x-3)/((x2 +x+1)2 )dx is ?

Q26. Ram starts from A walking 2 km North
and turns right and walks 4 km and
turns right again and walks 4 km and
turns right again and walks 4 km
and meets Radha at Bwalking in the opposite
direction to Ram .
a) Which direction does Ram walk after the first
turn?
b) Distance between A and B

Q27. If the equation x2 - 3x + a = 0
has the roots (0,1) then value of a is ?

Q28. A and B's temperature are
10°c and 20°c having same surface , then their
ratio of rate of emmisions is
?

Q29. An atomic particle exists and has a particlular decay rate . It is
in a
train . When the train moves, a person observes for whether the

decay rate
(a) increases
(b) decreases
(c) depend on the directions
of movement of train


Q30. Which of the following exchanges positive
ions
(a).cl-
(b) nh2-
(c) ch2
Ans. (b)

Q31. After execution
of CMP, a instruction in Intel 8085 microprocessor
(a) ZF is set and CY is
reset.
(b) ZF is set CY is unchanged
(c) ZF is reset, CY is set
(d) ZF
is reset , CY is unchanged .

Ans. ZF is set and CY is reset



Q32. The best tool for editing a graphic image is ?

Q33.
Network scheme defines
a.)one to one
b.) many to many
c.) one to
,many ?


Q34. A person wants to measures the length of a rod.First he
measures with
standing ideally then he maeasures by
moving parrel to the
rod
(a)the length will decrease in second case
(b)length will be
same
(c) length will increse in the second case.

Q35. One U-230
nucleus is placed in a train moving by velocity emiting alpha
rays .When the
train is at rest the
distance between nucleus and alpha particle is x . One
passenger is
observing the particle . When the train is moving
what is
the distance between particle and nucleus ?
(a) x
(b) x + vt
(c) x -
vt

Q36. What is the resulting solution when benzene and toluene are mixed
?

Q37. If the word FADENCOMT equals 345687921 then
What is FEAT

Find representation of 2998

Q38. Given 10 alphabets out of which 5
are to be chosen. How many words can be
made with atleast one
repetition.

Q39. Arrange by acidic values : phenol, nitrotolouene and
o-cresol?

Q40. Find sum of 3 + 5/(1+22) + 7/(1 + 22 + 32) +
......
Ans. 3n/(1 + n)

The following are few sample questions that
maybe asked in the
software paper.We
haven't been able to give the values in certain
problems ; only the type of
questions have been mentioned.
Q What sorting
algos have their best and worst case times equal ?
Ans. O(nlogn) for
mergesort and heap sort
Q. What page replacement algo . has minimumn number
of page faults ?
Ans. Optimality algorithm
Q. What is the use of virtual
base class in c++
Ans. Multiple lines between derived classes.
Q. Find the
eccentricity of a given node in a directed graph
Q. Convert the infix to
postfix for A-(B+C)*(D/E)
Ans. ABC+DE/*-
Q. What is swapping
Q.
Assignment operator targets to
Ans. l-value
Q. A byte addressable
computer has memory capacity of 2 power m Kbytes and can
perform 2 power n
operations
an instruction involving three operands and one operator needs
maximum of
---bits
Ans. 3m + n
Q. In round robin scheduling, if time
quatum is too large then it degenerates to
Ans. FCFS
Q. What is network
schema?
Q. Packet Burst is ______
Q. Picard's method uses _______?
Ans.
Successive Differentiation.

The following are few sample questions that
maybe asked in the hardware paper.

Q. Concentration and restivity is
given and conductivity is asked for ?

Q. R , resistance and C,capacitance
is given ,find the frequency and Q factor
of the crystal ?

Q.
Critical fequency and angle theta is given ;.the max useable frequency is to

becalculated

Q.Questions on parabolic reflector anttena's and half
wave dipole antenna's
design

Q. Ramp signal is generated from
integrator .Whether it is a low or high pass
filter .?

Q. Calculate
FM bandwidth given max modulation fequency FM , max freq deviation , df and 8
pairs alllowable
side band component ?


1. Add 79H and 86H and
tell the contents of flags
2. Scr is used for _____ ( ac, dc , both )
3.
Push pull amplifier is used to remove which harmonics ( even , odd , both
)
4. PAM is demodulated using ___ (
low pass filter , high pass filter )
5. 16k memory is needed. How many chips
with 12 address buses and 4 data buses
are needed.
6. AM wave is detected
using _________ detector
7. Which flip flop is used for shift registers

8. Program counter does what __ (stores a memory address, address of the
present
instruction)
9. In a bistable multivibrator communication
capacitor is used for ______ (
speed up response , ac coupling)
10.
Totem pole is what?
11. Time costant for an integrator and differentiator
should be ( small , high
etc.)
12. TV waves are __ ( sky waves , space
waves etc.)
13. Which configuration has highest i/p imp. ( ce , cb , cc
)
14. Parabolic antenna with 2degree angle. What is its directivity.
15.
Given 10 mhz pe modulation and we got a 100 mhz band.
How many channels can
be there.
16. If o/p power is doubled by how much does the sound increase (
1db,2db,3db )


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