L&T(ECC) PAPER PATTERN

[sridhar]

L&T(ECC) PAPER PATTERN



It was very easy.it consisted of one technical paper,which will be seperate for all branches and one general aptitude test containing english,logical and mathematical questions.Both contains 50 que. each for one hour. For technical they are going to ask easy basic questions, which are going to be little confusing. I dont remember the questions exactly.....the following concepts from civil branch can be read for it
1.nominal covers for column,beam.......
2.calculations on FS,BS, (surveying),instruments, scale?
3.type of rocks(like metamorphic,sedimentary etc)

4.degree of indeterminacy
5.english bond , flemish bond

[supz_kool]

hi . thanks for the review about the placement procedure of ECC.
i am genueinly interested in this company.But since this company is not company is not coming for campus at our college how shall i apply?
please guide me.

[murugan]

i want some more questions & some details of how to place l&t

[joydip]

Can u share the placement papers for L&T (ECC)?

[keshva]

hi my friend!

i am keshva...mech guy... want to share about l &t (ECC) pattern...
( if u have any other also,plz... send to me)

L AND T PLACEMENT PAPER


GROUP DISCUSSION (NO ELIMINATION)
Totally three sections:

First section:
Mechanical objective (47 questions-30Min).

Second section:
Mechanical comprehension (60 questions-40 Min).

Third section:
Figurative puzzle (36 questions-40Min).

You will be asked to select the figure, which is next to be given eight series of figure. (Study: Edgar Thorpe-Non verbal reasoning)

[keshva]

hi my friends!

i am keshva...mech guy... want to share some questions about l &t (ECC) pattern...
( if u have any other also,plz... send to me)

SECTION-1
Mechanical aptitude


Set 1:
1. Stroboscope is used for measuring?
A. rpm of the spur gear.
B. temprature calibration.
C. velocity of the reciprocating engine.
d. All the above.
e. None of the above.

2. Pneumatic pressure for industrial application?

3. Lathe bed is made of CI because?

4. Carbon is added to steel-to increase hardness

5. Guideways are hardened by which hardening method?

6. Carbon is added to engine parts to enhance-------- property.

7. A metal has K temp gradient and 2K for another metal. If a hot fluid is passed through a pipe the pipe should be made up of
a. K inside, 2K outside.
b. 2K inside, K outside.
c. Any of the above.
d. None of the above.

8. Crowning of pulley is done for?

9. If temp increases viscosity of gas &liquid

10. Shear angle in press tool -to avoid burr, easy shear.

11. Hardening of shear face in press tool is to

12. Blank size is equal to size of punch in presswork.

13. Bending moment diagram for a UDL in cantilever beam.
a. Parabola.
b. Triangle.
c. Rectangle.
14. for uniform strength of beam condition req.
a) Depth constant, width increases.
b) Depth increases, width decreases.
c) Both should be increases.
d) All the above.
e) None of the above.

15. M33*2 bolt size refers

16. For this bolt and nut arrangement what type is suitable
a.M6-6nos b.M8-4nos c.M10-2nos d.M12-1 .

17. Rupture stress is

18. If two springs of stiffness K1&K2is in series the equivalent stiffness is

19. Find out odd
a. Oxy-acety
b. Plasma arc
c. Electron beam
d. USM

20.butt welding
.
21.Welding employed for plastics

22.core prints

23.if carbon is added to petrol what happen

24.While machiningdoes not require lubricant.

25.Dirty filter is changed in to cleaner filter What will happen to the air fuel ratio –in the case of carburetor.

26.internal keyway is machined by

27.Aircraft blades are produced by
a. Casting
b. Stretch forming
c. Forging
d. Bending.

28.when water hammer occurs in the case of welding?why?

29.No of cranks used in 6 cylinder engine

30.Which grade of CI has most shock absorbing and damping capacity

31.damper is a vibration (dissipater).

32.Piezometer is used to measure
a)static pressure
b)total pressure
c)discharge]

33.which of the following is not a fusion welding
a) spot welding.
b) arc welding.
c) Electron beam welding
34.besides any thickness 2 metals of different materials can be butt welded by
a) by adjusting the initial gap.
b) By adjusting the current,voltage.
c) By adjusting the time of welding.

35.when pulley dia is doubled ,width is kept constant , tension is kept constant key size should be
a) Doubled in length.
b) Doubled in depth.
c) Both twice.


36.thermoplastics can be molded by
a) Vacuum molding
b) Compression molding
c) Injection molding


37.A ……..WEIGHT AT SLOPE
B------ WEIGHT THAT IS HANGING
FOR EQUILIBRIUM
a) A comes down
b) B comes down
c) A&B oscillates.
d) Remains at same.

38) Which load is safe for beam---------------
a) Point load.
b) UDL locally.
c) UDL fully.
d) UVL.

39) For diesel engine which ratio is high?
a) Compression ratio.
b) Expansion ratio.

40) Washers are used for providing(bearing area).

41) Which has no differential(train).

42) Constituents of brass (alloy of copper and zinc).

43) Worm And worm wheels are used for--- higher reduction.

44) Why in a condenser the pressure drops below vaccum turbine is tripped off(choice:c)

45) Fits will be based on –clerance between mating surface.

46)path traced by water particle flowing from an opening on the bottom of the container is ------ Parabolic.

Set 2:

1) The path of jet discharging from bottom opening in a tank of water (parabola with its vertex at opening)

2)water hammer in pipes occur due to(heavy pressurisation of pipe)

3)specific speed of a pump(delivers unit discharge at unit head)

4)for small discharge at high pressure(reciprocating pump is preferred)

5)ultimate tensile stress of mild steel compared to ultimate compressive stress is(more)

6)rupture stress(load at breaking point/neck area)

7)moment diagram for cantilever beam carrying uniformly distributed load will be(parabolic)

8)moment of inertia of an area is always least with respect to(centroidal axis)

9)crowning on pulleys help(for automatic adjustment of belt position so that belt runs centrally)

10)mitre gears are same as (right angled bevel gears having same no.of teeth)

11)stress concentration is caused due to((d)all of above)

12)function of washer is(provide bearing area)

13)M33x2(metric threads of33mm O.D and 2mm pitch)

14)key used between shaft and pulley is made from(cold rolled mild steel bars)

15)hardness of steel depends on(shape7distribution of carbides in iron)

16)carbon steel is(an alloy of iron and carbon with varying quantities of Phosphorous&sulphur)

17)hardening of Machine tool guideways by(flame hardening)

18)carriage and tailstock are placed in(different guideways)

19)In welding,arc is too long due to(formation of globules in irregular pattern becoz of wandering of arc)

20)acetylene is stored in(liquid form)

21)purpose of riser is to(help feed casting until all solidification takes place)

22)core prints are used to(form set to support&hold core in place)

23)unlike materials as well as materials of different thickness can be butt welded by(control of presure&current)

24)galvanising is(process of coating of zn by hot dipping)

25)size of shaper is specified by(length of stroke)

26)hardness of wheel(or)grade of wheel refers to(strength of bond of wheel)

27)for grinding harder materials(softer grade is used)

28)dielectric medium in EDM is(kerosene)

29)electroplating requires(1)ac,2)dc,3)high frequency ac)

30)no cutting fluid is used in machining (C.I)

31)use of gap(snap)gauge

32)9.81 kgf=?newton

33)general gas eqn is(pv=mRT)

34)carnot cycle has max. efficiency for(reversible engine)

35)fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as
compared to clean filter will be(higher)

36)In S.I engines ,air fuel ratio for idling speed is(1)lean,2)rich...)

37)use of piezometer

38)specific heat values for solid&liquid(one)

39)most ductile metal is(1)gold 2)steel 30C.I 4)Al)

40)aeroplane wings are made of

41)adv.of projection welding over spot welding

42)electrodes of resistance welding are made of(high strength&high conductivity)

43)AIRCRAFT GASTURBINE is made of(timken,haste&inconelalloys)

44)when a spring is cut into two,stiffness becomes

45)shear angle given in punch during piercing or punching operation is due to

46)worm gears used for(1)low redn speed 2)high rednspeed...)

47)helical gears are used(for noise redn)

48)mirror(image) is due to

49)hardest cutting tool material is(tungsten carbide)

50)fit is reqd due to(clearance between two mating parts)

51)damper is used for

52)Thickness(t=0.5cm)shear dis=7cm & tensiles tress=400kg/sq.cm find force reqd in punch?

Set 3:

1. Why CI is used for most m/c tools (dampening).

2. Which of the following does not require cooling medium (CI).

3. Among the following which is most used for vibration and dampening (GCI).

4. Which gear has no axial thrust (herring borne)?

5. Which has no differential (train).

6. When C is deposited on engine piston, what happens?

7. Constituents of brass (alloy of copper and zinc).

8. In a sheet metal blanking process the dia of the blank is equal to -----(dia of punch).

9. Fits will be based on (clearance bet mating parts).

10. C is added to a material why (to increase hardness).

11. Why in a condenser the pressure drops below vacuum turbine is tripped off (choice c).

12. Washers are used for providing (bearing area).

13. Constant enthalpy process (throttling).

14. Hardness of steel depends on (carbon).

15. If two springs of stiffness k1 and K2 is in series the equivalent stiffness is (k1+k2/k1k2).

16. Which one will have uniform strength (choice a) width same depth varying. b) Depth
same width varying. c) Width and depth vary proportionally. D) Any of the above. E) None of the above.

17. In a simple row 6 cylinder radial engine how many cranks will be there (1).

18. In which of the following work done is zero (all the above).
19. How internal keyway is made (broaching).

20. Screw threads are made (rolling).

21. In which instrument more measure is taken (outside micrometer).

22. Most common pressure range used for industrial applications (5 to 10 bar).

23. Worm gears are used for (high reduction ratios).

24. Ni is added to CI to increase ...(toughness).

[keshva]

hi my friend!

i am keshva...mech guy... want to share about l &t (ECC) pattern...
SECTION 2

Mechanical comprehension

Basically 4 types

1) asked to find the gear direction of rotation given the driver rotation

2) Minimum effort to lift the load given different types of mechanisms

3) Speed of the gear rotation

4) Water flowing from a channel
All were diagrammatic.
8-10 questions from pulleys, gears, and shafts.

The questions are available at the end

[keshva]

hi my friend!

i am keshva...mech guy... want to share about l &t (ECC) pattern...

SECTION 3
Non-verbal reasoning

These were for picture puzzles:

This part is the easiest of all. You can easily solve it in less than 30 minutes. Certain sequence of

8 pictures will be given and u will be asked to find the 9th one, u will have 8 choices.
You can easily solve the first 20-25 questions and others are little difficult.

The questions are available at the end

[keshva]

i my friends!

i am keshva...mech guy... want to share about l &t (ECC) pattern...

GD topics:

1. Should Mangers Be Good Technical Personnel?
2. Indian Technical Professionals Wish To Merely Set Up A Career Abroad.
3. Are Indians Less Quality Conscious?
4. Brain drain.

#U ll be asked to choose a topic from two.
# Every one will be made to participate by the HR.
# Its just a debate, a decent GD, no Fish Market Scenario.
# No elimination from GD (cumulative)

[keshva]

i my friends!

i am keshva...mech guy... want to share about l &t (ECC) pattern...

INTERVIEW SECTION



Only fundamental questions of area of interest is asked. Interview lasted for nearly 1;30 mts Concentrate more on metal forming, machining& strength of materials.


The following is the interview questions asked for a psg mechanical student.

Introduce about urself, ur family, background

I told about my place of birth( CMCHospital, Vellore), My father , My Mom((I actually forgot to tell my parent’s names)). What I learnt from them. About my brother and my schooling, VERY VERY IMPORTANT – Tell ur X %, XII % and CutOff. They noted it down. My rank in class. They had compared these data with subsequent candidates and checked whether it tallies. So DON’T TRY TO GIVE THEM WRONG INFO.

They asked about my hobbies – novels- Jeffrey Archer –Business oriented.

Which subject u are interested in?
I stated I am more interested in Iron And Steel.

1: What is Steel?
Any foundry Visited? Describe the foundry and their products?
Give the types of furnaces from the primitive to the most recent one? State one point for

2: each comparatively?

3: Fuel used in a cupola and hearth furnace?
4: Grades of Cast Iron?

5: Process Flow Chart for a foundry from sand preparation to inspection?
Fettling?

6: Lining – property?(Refractory) Is it necessary?(Of course YES) Types of linings – Acid

and Basic. Lining matl. for both.

7: Casting Defects?

8: Inspection techniques, Description? Working Principle of Ultrasonic Inspection?

9: MoS – Z,Section Modulus? Explain ? I-sec Vs Rectangular Sec.(Explain based on Z)

10: Adiabatic Process? Draw PV plot?

11: Impact Strength?

12: Difference bet. Steel and Cast Iron based on ductility and Brittleness.(Explain based

on Stress-Strain Curve, Steel yields, CI does not)
13: Factor of Safety(FOS)? Definition and need?


Given Dia. 50 bar of C40, FOS = 2.
14: How to increase FOS to 2.3 without changing composition, area or section, loading


conditions.? (Tricky)
15: He gave a clue. ----increase the numerator in the FoS ( since u can also decrease the

denominator).
Ans: Strengthen the material- Solid solution strengthening- Heat Treatment

16: Explain the heat treatment- hardening. Explain it in detail if possible use the Fe- Fe3C
diagram.

17: If u increase one u lose another. In this case hardness and toughness respectively. I want

a tougher material. How?
Ans: Tempering

[anmol abhishek]

hi....... its anmol here a mech guy
may i have some information abt ecc .its cmin on 29 aug in my coll.if u di have any information help me

[keshva]

hi anmol...

u did't mention ur college name...
where it is located...
is the campus is open for all...
any eligibility criteria...

[nagalak]

can any one sent all aps ques for all companies...........

[sandeep.G]

i want some more questions & some details of how to place l&t

[sandeep.G]

show me civil techinical questions