PATNI PAPERS

Time 50min

--1/3 Negative marking

--Total question 20

(Questions are not in order)

Q.1. There are 254 women. A sales man asks each about which product they

use out of three

(A, B, C,) 22 use all three, 39 use B and C....... Each uses atleast one

product.

Find the number of women that use product C

(ans 52)

Q.2. A man leaves office daily at 7pm. A driver with car comes from his

home to pick him

from office and bring home. One day he gets free at 5:30 and instead of

waiting for

driver he starts walking towards home. In the way he meets the car and

returns home on car. He reaches home 20 minutes earlier than usual.

In how much time does the man reach home usually??

(ans 1hr 20min)



Q.3 The following truth table is given. What is y equal to??

-------------------------

A B C Y

-------------------------

0 0 0 1

0 0 1 1

0 1 0 0

0 1 1 0

1 0 0 0

1 0 0 0

1 1 0 1

1 1 1 1

ans:- (A')(B')(AB)

Q.4 A question on venn diagram of intersection of three circles. Some

area is shaded. Find the shaded area?

ans d) a(b+c)

Q.5 Question about 22 people dancing. 7 men dance with one girl

etc...... You have to find the number of girls in it.

ans 8

Q.6 One question about A working thrice as B and if A takes 60 days less

than B to do a work.

Find the number of days it would take to complete the work if both work

together?

ans 22½days

Q.7 One quetion on 5*5 matrix. How much time does computer take to

calculate (something....)

ans:- d)more than a year

Q.8 How many 1's are there in the binary form of:

8*1024 + 3*64 + 32

ans c)4

Q.9 One question on 64 playing cards. You put the top card at the bottom

and then discard

next. Repeat the process till you are left with one card. What is the number

of this card

ans:- 1

Q.10 In a digital circuit which was to implement (A.B) + (A)XOR(B). The

designer implements

(A.B).(A)XOR(B). What is the probability of error in it??

ans 0.5

Q.11 A boy has 2 Rs. He wins or looses 1Re at a time. If he wins he gets

1Re and if he looses

the game he looses 1Re. He can loose only 5 times. He is out of the game if

he earns 5Rs.

Find the number of ways in which this is possible??

a)12 b)14 c)16 d)18

ans :- 16

Q.12 If there are 1024*1280 pixels on a screen and each pixel can have

around 16million colors.

Find the memory required for this?

a)512KB b)2MB c)4MB d)8MB

ans 4MB

Q.13,14 Two questions on comprehension( Something about Serial and parallel

imaging)

ans Q.13:- c

ans Q.14:- d

Q.15. On a particular day A and B decide that they would either speak

truth or will lie. C asks A whether he is speaking truth or lie? He answers

and B listens to what he said. C then asks B what A has said. B said "A

says that he is a liar".

What is B speaking?

a)Truth

b)Lie

c)Truth when A lies

d)Cannot be determined

ans b



Three programs on C.(All three are about arrays and are quite easy)

(not in order)

Q.16 Answer of one program is:- A intersection B

Q.17 Answer of another program is:- Run time error

Q.18 Answer of program is:- c)3, 2, 1, 10,......

Satyam Placement papers

Aptitude Paper:

Total 15 questions(1 mark each) r given 30 mins with 1/4 -ve marking. All r objective.

If SCOTLAND = 12345678, SAT=453, DON=128, and SALT=3782 then C = ?SAT,DON,SALT are not the exact words that were given but similar .LOGIC : C is not ther in any of the words other than 'scotland' and also 6. so C = 6.

3 persons travelling in a train.Mr.SMITH,Mr.JONES n Mr.ROBINSON they r ENGINEER, FIREMAN n
BRAKESMAN, but not respectively. Also travelling r 3 ladies with same names Mrs.SMITH, Mrs.JONES
n Mrs.ROBINSON.
1. Mr.ROBINSON lives in DETROIT.
2. BREAKSMAN lives in midway of CHICAGO n DETROIT.
3. Mr.SMITH beats fireman in a game of billiards.
4. Mr. JONES earns $20000 per annum.
5. BREAKSMAN's nearest neighbour earns exactly 3 times that of BREAKSMAN.Like this conditions r given and question asked is who is the ENGINEER? Question is just tricky but not so tough to analyze

A question on number series. Using the relation of the first series find out E?
57 58 118 357 1432
205 A B C D E

A large question almost a page. Very simple to answer. Some 20 facts r given n a question below which is not relevant to facts. So answer is NONE. Just go thru the facts in rapid fire n answer. Answer this question only at the last if time permits or else u will be stuck with it.

Inference question. Children r frequently used in drug business.
I. Children r smarter than grown ups.
II. Children can be easily convinced n r not suspected.
III. when they become young they can be easily trained.
Like this 3 stmts r given and asked that which of the stmts r implicit.

A square , rectangle, circle n triangle r drawn in a overlapped manner n some number r given in the intersection parts( like venn digrams).
square - cultivated area
rectangle - desert area
circle - electricity present
triangle - medical facilities
how much area is cultivated with electricity present but have no medical facilities.

1. A = B+C
2. D = A+F
3. E = B+D
4. G = C+E
5. B = D+A
6. C = G+F
like this 6 stmts r given(not exactly the same) n asked which of the stmts can be executed parallely.

A C prog to shift an array towards left is given with some blanks in the place of while conditions.
Have to fill the blanks.

A problem which can be solved easily using venn diagrams.

A sequence of 4 diagrams is given n have to find out the next diagram in the sequence.
they test ur logic thats

BOSCH Placement Papers and Pattern

CAMPUS RECRUITEMENT PROGRAMME
1. Critical stress at which material will start to
flow
(a)yield
(b)ultimate tensile stress
(c) proof stress
(d) none o the above

2. maximum degree of freedom in space
Ans. 6

3. bearing which will take axial and radial loads.
(a) thrust bearing
(b) deep groove
(c) taper roller
(d) ---

4. volume of water per cubic metre of air.
(a)specific volume
(b) specific gravity
(c) vapour pressure
(d) none of above

5. fluid is flowing through a frustum of cone. what is
the nature of graph of velocity
Vs. c/s area. {flow = velocity X c/s area}
(a) parabola
(b) hyperbola
(c) y=mx+c
(d) x=x.

6. Fluid in a pipe having no change in profile with
change in length of pipe ...explain type of flow.
a)Laminar
b)Turbulent
c)fully developed profile
d)steady flow

7. Which are correct

I) Navier Stokes Eq. is .... of momentum
conservation eq.
II)bernoulis eq. is for viscous flow
III) REYNOLD no. >3000 always for turbulent flow.

a)I and II correct
b)I and II not correct
c)II and III correct
d)II and III not correct

8. Which can't be removed during alloying from Fe
alloys
a) co
b) N
c) Si
d) As

9.There are two ropes burning non uniformly (rate) and
clock half an hour each. which can't be clocked ?
a) 1 Hr.
b) 45 min
c)15 min
d)none

10. Lim n->0 (1+ 1/n)^n =
a) 1
b)0
c)e
d)infinity

11.time dependent increase in length at steady temp.
is called
a) superplasticity
b) creep
c) fatigue
d) none

12. Vicosity change with increasing temp.
a) decreases
b) increases
c) same
d) first decreases and then increases.

13. Direction of friction in bicycle tyres
a) along motion
b) opp. motion
c) Front opp. motion and vice versa
d) rear opp. motion and vice versa

14. Sp. gravity of a fluid
a) density of fluid at 0`c / density of water at o`c.
b) density of fluid at 0`c / density of water at T`c.
c) density of fluid at T`c / density of water at o`c.
d) density of fluid at T`c / density of water at T`c.

15. lateral strain / longitudinal strain
a) Poission's Ratio
b) Bulk Modulus
c) Modulus Of Elasticity
d) None

16. 10 coins & 1 defected coin and 2 weighs Find min
weighs req. to detect faulty coin
a) 2
b)3
c)4
d)5

17. 9 members in meeting scheluled at 10:00 A.M. , all
reaches at 9:48 A.M. . one member req. 2 min to intro
with other
find meeting delay with scheduled time of 10:00 A.M..
a) 1 Hr.
b) 6 min
c) ...
d)At scheduled time

18. A completes job in 10 hr. and B completes in 15
hr.. Find when both together works
a) 6 hr.
b) 8 hr
c) 10 hr
d) none

19. A ball dropped from H height and moves 80% of
height each time.Total dist. covered
a) 4H
b) 5H
c) 7H
d) 9H

20. A cantilever beam loaded at free end find
reinforcement place
a) AT neutral axis
b) above neutral axis
c) below neutral axis
d) above and below neutral axis

21. punching a sheet of D dia and T thickness and S
ultimate tensile stress
a) 3.14 DTS
b) 3.14TS X D^2
c) 6.28 DTS
d)6.28 TS x D^2

22. & 23. two easy ques. of string mass equilibrium
system...

24. Microstructure after quenching
a) Mertensite
b) pearlite
c) ........
d)..........

Yahoo India :: Placement Paper

Few Questions: (45 min)
1. In a village in each family they give birth to children till they
get a boy. IF girl child they try again. What is the ratio of boys to
girls.

2. 2n+1 numbers in a list except for 1 num all had duplicates, how to
find duplicate in O(n)

3. In 1000 wine bottles stack 10 are poisoned given 10 rats what is
the minimum number of tries to find the poisoned one. Rat dies once it
licks the poisoned wine.

4. Write 1,3,6,4 using +,-,*,/ to get 24 (no repeat of numbers)

5. Which is the DS used in dictionary mode in mobile (t9)

6. Which is DS used for chess program...to predict move each and every
time..

7. There are $1070 dollars how to split them into bags such that asked
for any denomination from $1 to $1070 , u must b able to give without
opening bag...


Another paper:

1. First fit issues...

2. Algorithm to partition set of numbers into two s.t. diff bw their
sum is min and they hav equal num of elements

3. Prog: given Numerator & Denominator.... print 0.3333333333 as .(3)
0.123123 as .(123

MAHINDRA PLACEMENT PAPER

sinhө - hyperbolic
Xn+1 = Xn – f ‘ (Xn) / f (Xn) - - - Newtons Raphson formula
3d3y/dx3 + 7d2y/dx2 - 4 (dy/dx)2 = 4 y2 order , degree
According to Newtonian Law, shear stress is directly proportional to velocity gradient.
in casting molten metal flows through _______. (runner)
welding -> preheating -> why
which one C% is high
28Cr50
40Cr
C35

Spring is not subjected to
Hoop stress
Deflection]
Torsional shear
Transeverse shear>>Ans


Global Warming CO2
Principal Stress = 1000 , -600. What is maximum shear stress
Order of efficiency….. 2 Stroke SI,,,,, 4 Stroke CI
if Inlet air temp increases, efficiency(petrol engine) increases but compressor efficiency decreases - - - True
In SI knocking is reduced due to increase of
Increasing of wall temp
Compression ratio
Supercharge
Engine speed


Specific energy is high?
Turning b. drilling c. grinding d. planning






Match the following
Mohrs circle - Principle stress
Martensite - Hard and brittle Phase
Degree of freedom - kinetics
Section modulus - flexural rigidity
Plastic water bottle - blow moulding


which cycle uses two isentropic and two isothermal processes
dynamic loading which consideration
Elastic limit
Poisson ratio
Yield strength
Endurance limit


A material is loaded still yield point and the load is removed.
Increase in yield stress
Decrease in yield stress
Unchanged yield stress
Reaches UTS


A thin wire is subjected to tensile load. Temperature is same. The resistance_______ (remains constant)
Aeroplane is flying at 800 kmph. Air temp. is zero.
Subsonic
Supersonic
Sonic


match
kirchoff law - electrical circuit
Daltons law - partial pressure
Hooks law - elasticity
Joules law - work equivalent to heat


MAHINDRA
Newton’s Law-Motion

Boy

In a drawer, 5 white socks and 8 black socks are there. To draw one pair of socks, minimum no of socks that has to be drawn? Ans.3
Radius of a cylinder is increased by 30%,then increase in volume will be -------(height is constant).Ans.69%


le’s Law-Pressure and volume relation

Joule’s Law-Mech. Equivalent of heat

Kirchoff’s Law-Electric circuit

Hooke’s Law-Elasticity

Air velocity-Anemometer



Stagnation pressure-pitot tube

Rpm-Stroboscope

Humidity-Hygrometer

Furnace temp-pyrometer



If a body is at -10 degree C(ice) and if it is to be converted into saturated vapour ,how much heat is necessary?



To study:



1. Strength of materials-Bending Moment Diagram,Cantilever beam (Basics)



2. Relative density



3. Natural frequency-spring mass system



4. Heat treatment-very basics



5. Pump efficiency



1. sinhө - hyperbolic



2. Xn+1 = Xn – f ‘ (Xn) / f (Xn) - - - Newtons Raphson formula





3. 3d3y/dx3 + 7d2y/dx2 - 4 (dy/dx)2 = 4 y2 order , degree



4. According to Newtonian Law, shear stress is directly proportional to velocity gradient.





5. in casting molten metal flows through _______. (runner)



6. welding -> preheating -> why





7. which one C% is high

a. 28Cr50

b. 40Cr

c. C35

8.


F







Stress type?

8. What is the type of failure in Key that is used in Flange Coupling



9. Spring is not subjected to





a. Hoop stress

b. Deflection]

c. Torsional shear

d. Transeverse shear>>Ans



10. Global Warming CO2



11. Principal Stress = 1000 , -600. What is maximum shear stress





12. Order of efficiency….. 2 Stroke SI,,,,, 4 Stroke CI



13. if Inlet air temp increases, efficiency(petrol engine) increases but compressor efficiency decreases - - - True





14. In SI knocking is reduced due to increase of



a. Increasing of wall temp

b. Compression ratio

c. Supercharge

d. Engine speed



Specific energy is high?

e. Turning b. drilling c. grinding d. planning

15.

Match the following

a. Mohrs circle - Principle stress

b. Martensite - Hard and brittle Phase

c. Degree of freedom - kinetics

d. Section modulus - flexural rigidity

e. Plastic water bottle - blow moulding



16. which cycle uses two isentropic and two isothermal processes



17. dynamic loading which consideration

a. Elastic limit

b. Poisson ratio

c. Yield strength

d. Endurance limit



18. A material is loaded still yield point and the load is removed.

a. Increase in yield stress

b. Decrease in yield stress

c. Unchanged yield stress

d. Reaches UTS



19. A thin wire is subjected to tensile load. Temperature is same. The resistance_______ (remains constant)



20. Aeroplane is flying at 800 kmph. Air temp. is zero.

a. Subsonic

b. Supersonic

c. Sonic



21. match

a. kirchoff law - electrical circuit

b. Daltons law - partial pressure

c. Hooks law - elasticity

d. Joules law - work equivalent to heat

L&T Infotech placement paper

31st july,2004.......

the pattern is like:
1) branch related ques. 50(30 min)
2) engg. aptitude test 60(40 min.)
3) non verbal ques. 36 (40 min)
mech. ques which i can recall is ...may not be as per the language stated there in paper but it would really help there a lot.....
mech.
1.what is the equivalent spring constant of two srings with k1 & k2 as sring constant connected in series? ans. k1.k2/(k1+k2)
2.by which moulding we produce thermosetting plastics?
3.when air is dirty what will be the injectility of the fuel .................more ?
4.carbon deposits increase the comp. ratio.
5.carbon increases the hardness.
6.hot fluid passes thro the cylinder. by using two insulating material(k,2k)in which sequence may be more effective.......? ( firstk, then 2k matl.)

7.wings of the plane can be made by stretching.
8.what will be the metal removal ratio if the balancings r done at 3000&1500 rpm..
( cent. forces to be considered......ans 1:4)
9.what is cylinder ratio? ans. arrangement of cylinders in which the centre line of crankshaft journal is per.to the plane containing the centrelines of the engine cylinders.
10. In diesel cycle the compression ratio incereases more to expension ratio.
11. In the shm of the ball inside a earth hole passing through the center ,velocity maximum at the center.
12.viscosity of liquid increases with decrese in temprerature.
13. Piezometer measures static pressure..
14. Which iron is used for body construction of machines, gray or white iron ?( not sure)
15.what is core print ?
16. pig iron is manufacture in --------blast furness
17. what is the effect of increase arc lenght in building
18. m 62 indicates ------ 6mm outer diameter & 2 mm pitch
19. what raputre failure.
20 . 6 cylinders in a row , n0. of crancks = 1
21. If in a steam power plant vaccum in condensor reduces what is the effect
22. pressure in industrial pnumatic lines -------5 to 10 bar
23. effect of low temp. ( -20 degree ) on carbon steel .
24.method of hardening of machine guidesways
25. method of joining plastic by welding
26. safe method of loading on a cantileaver
a) UDL b) center point load c) triangular load having zero at center
27. BMD for UDL in cantilever
Ans. parabolic
28. Beams of uniform strenght can be made by
a) varying width b) varying depth c) both d) none
29. which of these not fusion welding process
Ans: spot welding
30. function of stroboscope is
Ans: speed measurement of spur gear
31.if diameter of pully is double how will the design of key way change
32.gray cast iron used for machine parts
33. use of worm gear
34.what will be the diameter of punched hole in punching opereation
a) same as punch b) punch dia + thichkness of sheet
35. this is figure porblem
described as :
there is right anguler wadge with pully at vertex connecting
two equal masses by string one on the sloping side and other
on the vertical side
Questin is what will happen to them
Ans: mass will fall down

essar group placement paper

Placement Paper
Date Conducted: 18 Feb 2007

Paper/Interview:

ESSAR GROUPS PLACEMENT PAPER
AT ANNA UNIVERSITY

The Company procedure is Written Test (Aptitude Test & Technical Test), Group Discussion, Technical Interview and HR Interview. I want to share my experience with you all.
The aptitude test consists of 3 sections – Verbal reasoning, Quantitative Aptitude and Logical Reasoning comprising of 120 questions in 40 questions from each section.

Some of the aptitude questions are:

1. SQRT (156.25) * SQRT (14.25) = 35 * X what is the value of X? X = 1.25

2. A + 8450 ÷ 650 = 13 + A. What is the value of A? A = 0

3. The sum of a number whose ? th is 45. What is the number?
Ans: None

4. The sum of a 2 digit number is equal to the difference between them. Find how many such numbers are possible?
Ans: 10

5. The sum of a 2 digit number is equal to twice the difference between them. Find how many such numbers are possible?

6. 1000.01 – 100.01 – 10.01 = X. what is X? X = 889.99

7. 0.25% of 10 – 10% of 0.25 = 25% of 100 – 100% of X. What is X? X = 25

8. One – fifth of two – third of a number is equal to 24. What is the number?

9. 100$8 – 2$39 = $319. What is $? $ = None of these

10. Ajith and Ajay’s age are in the ratio of 3:5. Two years hence, their age are in the ratio 7:11. What is Ajith’s present age? Ajith’s age = 12.

11. The length of a train is 200m and it crosses a platform of 75m in 15sec. Another train with a length of 180m which is on the opposite direction approaches it. How long it will take to cross the other?

12. (X) – Square, % - Square root, # - Divide, * - Multiply, @ - addition and & - Subtraction. Find the value of

13. Solve 30 – 0.05 *20 +10÷ 5 =?

14. A circle of diameter 28 cm. If there is a rectangle of length 56 cm. What is the value of breadth whose areas are equal? Breadth = 44cm

15. A wheel rotates 18 revolutions in 4.5 sec. What are the revolutions of the wheel per minute? Revolutions = 240

16. Solve: 20% of 60%of a number is equal to 40% of 200. What is the number?

17. 252 x 253 =? 252 + 3

18. Series: 5 5 7.5 15 37.5 112.5 339.75 X

19. Trisha’s monthly salary is 25% more than Krishna’s salary but 25% less than Payal’s salary. Krishna’s annual income is Rs. 1, 20, 000. What is the monthly income of Payal?

20. There is a seven consecutive odd numbers. What is the number greater than 6 and it is smaller than 6?

Technical Aptitude:

1. Work done is Zero for which process?
Ans: Constant Volume

2. Which cycle has high efficiency?
Ans: Otto Cycle

3. The power of 2 –stroke engine varies from 4 – stroke engine by______.
Ans: Twice

4. Sudden reduction in barometer leads to ______.
Ans: Storm

5. Composition of Stainless steel ____.
Ans: Chromium, Nickel …

6. Gears are produced in mass production by ______.
Ans: Hobbing

7. Pick out the wrong statements:
a) The good fuel should have high calorific value
b) Ease in storing
c) High ignition point
d) Low smoke and gases
Ans: (C)

8. Composition of Gun metal _____ .

9. Gears are commonly called with _______
Ans: Pitch Circle Diameter

10. A good fuel should have ________ ignition point.
Ans: Low

11. If heat supplied into the system is 30000 J/S and the power output is 9KW. What is the efficiency of system?

12. A square rod of 2cm x 2cm of which a force of 8800Kg is acting on it. What is the stress developed in it?
Ans: 2200 Kg/cm2

13. GNATT chart shows___________

14. Which is the high efficiency freezing agent?
Ans: Freon 22

15. Property of the freezing agent is:
Ans: Low boiling point and high melting point

16. A diesel engine, that is, slow speed engine follows which cycle?
Ans: Diesel Cycle

17. Hardness is the property of _________.

18. A Rotary compressor depends on ___________.

19. The potential energy raised upwards ___________ the kinetic energy downwards.
Ans: is equal to

20. Centipoise is the unit of ________.
Ans: Dynamic Viscosity

21. For a thermodynamic system, the COP is 5 and the heat supplied to the system is 1 KW. What is the work done?

The technical aptitude questions are given to the students who cleared Aptitude test and it contains 50 questions.
After the Technical Aptitude is over, GD was conducted and the students who are short listed are allowed for Technical Interview and HR Interview

GD topics:

Democracy is the only way to sustain economy growth

Should Indian youth involving Politics

Foreign investment should allow directly to India

Foods come first ethics come later

TV channels can be regional , International