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WIPRO papers 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 |
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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.
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
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.We haven't been able to give
the values in certain problems ; only the type of questions have been
mentioned.
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 )