Test Paper

Test Paper :2 Paper Type : Whole Testpaper Test Date : 23 December 2006 Test Location : IIT Delhi Posted By : Dnyanesh Ambhore TATA MOTORS PAPER ON 23rd DECEMBER AT DELHI TML conducts test for thermal mechanical. And electrical people. some of the mechanical questions I am writing here .there will be no Aptitude test. with 25% -ve marking. its a 50 questions test for 1 hour. i won't list the options. some of the questions are: 1. what is the poison’s ratio? 2. when boiler bursts, whom u would inform? 3. modular ratio? 4. envelope of damped free vibration? 5. a ball with a mass M is falling on to the ground with some velocity V1 and raising with velocity V2 . find the impulse? 6. Contd.. for 5th problem. When time of contact is given then force exerted on the ground.

7. two masses are connecting with string on to pulley coefficient of friction of mass m1 is given and also m1 and m2 are given. Find the relation b/n m1 and m2 , to make m2 move downwards 8. In a damped free excitation system maximum amplitude occurs a. before resonance b. after resonance 9. Questions on set screws? 10. A four bar link mechanism is given with moment m acting on crank and also a force given at crank end. Find the reaction at hinged end of crank. 11. Deflection due to self weight of a uniform rod of diameter D and unit density and length is given . 12. The type of key used in wrist watch? 13. Bending stress is proportional to….? Ans). Section modulus 14. The hypoid gears are …. Ans). Non intersecting non parallel gears. 15. Hollow cylinder of outer D0 is given find the diameter of solid cylinder for the same material and same torsional strength. ? 16. principle plane is ? 17. Two masses are resting on a inclined plane with 30 degree angle and the two masses are welded with weightless rod and coefficients of friction is given. Find the common acceleration of a two masses. 18. two masses are of different weights smaller one is placed on the bigger mass. If the force is force is acting on bigger mass given find the acceleration of smaller mass. 19. Stress on minor diameter of bolt when bolt is subjected to longitudinal force.

20. no of independent elastic constants required for isotropic material? 21. pitch of the bolt of 30 mm metric thread dia meter is? 22. the ratio of natural frequency on earth to moon? 23. upper portion of set screw is given fig shown and asked which type of set screw is ? 24. Efficiency of screw jack formula? 25. which of the parts given is harder one? Ans a). inner case b)outer case like that? 26. Max efficiency of screw jack formula? 27. Given some c/s of diffirent types which is having more torsional strength ? 28. Max principle stress theory is valid for which material? 29. efficiency of reveted joints of different types has given which is having max efficiency ? 30. if the roots are real then which type of vibrations will occur in damped systems ? 31. problem on transmissibility ? 32. when the disc is rotating on which on man is standing at the edge then what is the possibility of increase in speed of the disc? A).man moves towards centre b)out ward? Like that 33. what is the principle behind the collisions of ball ?which is related to Q.7 ? ans constant linear momentum. 34. Find the elongation of the bar due to self weight 35. Problem on the cantilever deflection 36. Problem on the two blocks connected by string one is on table and on is hanging from the pulley…mechanics’ problem 37. Ratio of the tension of the band block breaks 38. max and normal efficiency of the power scew 39. what is monel metal 40. for which material max normal stress theory is used 41. efficiency of the riveted joints 42. coefficient of friction for the greased ball bearing 43. which key is used in wrist watch 44. bending stress is proportional to 1. directly/inversely proportional to section modulus 45. find the width of the strongest beam that can be cut of cylindrical log of wood whose dia is ‘d’ 46. if the phi is friction angle then which of the following can not be the value of the tan(phi) a) 0 b) 1.5 mu etc. ans is 0 47. problem on the transmissibility …to calculate dynamic amplitude By, Dnyanesh Ambhore

Paper Type

Test Paper :3 : General - other

Posted By : Mrudul BRAKES INDIA LIMITED STAGE I: TEST I : GENERAL APTITUDE : 15 MINS : 25 QUESTIONS IN THE BELOW QUESTIONS BLOCKED WORDS WERE ANSWERS) Commerce minister of India, ---------( Arun jaitley) First car using CRDI is----------(hyundai Accent, Skoda Octavia,) First Indigenous car sold in European market-------------(tata indica, M&M scorpio, fiat palio) Selection Committee Leader of Indian cricket team-----------(kiran more, syed kirmani, brijesh patel) Governor of RBI(Reserve Bank of India)------------(s.rangarajan, sivathanu pillai, y.v.reddy, bimal jalan) WTO meeting recently held at ---------(Cancun, Jakarta, Geneva) Economic Growth Rate is measured by---------------(GDP,inflation,GNP) HAL’s(Hindustan Aeronautical Limited) indigenous aircraft -----------(Tejas,trishul,danush) Which European country does not have the same currency--------(U.K,spain,france,germany) Meaning of URGE------(desire,strength,forceful demand) Opposite of PHENOMENAL-------(ordinary) Find in which part Grammatical /idiomatic error occurs in the sentence Yesterday while/crossing the road/he was/ run out by a lorry ABCD 13.ISRO chairman---------(madhavan nair) 14.opposite of “obscure”(explicit) 15.Meaning of apprehend (fear) 16. what is the name of the robot presented by japan to Indonesia- azimo Honda

17. it is very cold outside. You must take some clothes with you. Ans: combined sentence will start with As it is very cold outside. 18. By the time we reached the station the train had departed.(ans) STAGE II: TEST II : TECHNICAL TEST : 30 min : 75 QUESTIONS In V belt drive contact is made on 1) bottom 2) sides 3)bottom and sides Section modulus of hollow shaft PI/32*(D4-d4)/D 3. Down milling is also called Climb milling 4.Drilling is an example of Oblique cutting 5.Section view of ’C’ washer 6.Deflection of simple supported beam carrying UDL 5/384*Wl4/EI 7.Flexible coupling is used because 8.Washer is used to provide bearing area 9.Initial tension is considered in 1)tension springs 2)Compression springs 3)Both 10.Kelvin plank law deals with 1) Conservation of work into heat 2) conservation of heat into work 11.Soldering alloy consists of Tin and lead 12.Why chromium is used in steel alloys? Corrosive resistance 13.High cutting speed is obtained while machining 1) HSS 2) carbide 3) CBN 14.Metal forming is an example of chipless machining

15.Top rake angle is provided for Easy removal of chip 16.Alloying is done for increased strength and application 17.Transformer is used welding 1)to convert AC to AC 2)AC to DC 3) DC to AC 18.spheroidal cast iron is getting from Grey cast iron by adding Mg 19.In throttling process Enthalpy constant 20.70 cc of engine means swept volume 21.Tan (a) = co efficient of friction 22.Geneva mechanism is used for Intermittent motion 23.In NC system for profile machining 1)point to point 2) contour motion 3)paraxial m 24.In centreless grinding, the grinding wheel and the regulating wheels rotate in the same direction. 25.Centridal distance of a semi circle 4*r/3*pi 26.Highest packing factor: FCC 27.Which chart takes care of conrol attributes : Pchart, C chart, R chart 28.Fixture is used for holding the workpiece without disturbing the tool path 29.Code for circular interpolation G 02 30.Order of transmission in a car: EFCPD Engine Flywheel Clutch propeller shaft Differential 31.Reverse gear has less speed because 1.More speed is not necessary in reverse gear 2.Steering is difficult in the reverse direction 3.less space availability 4.Design simplification 32. which of the following has no unit: specific gravity 33. use of annealing : to relieve stresses

34. question on stress concentration 4 figures: one with the notch is the answer

35. how many squares are there in this figure: 14 36. pulley question: w=f/2 37. equivalent stiffness of springs in series: k1k2/(k1+k2) 38. Deflection=5 mm.stiffness=k,.then applied load is 5k 39 bevel gear is used in differential Diagram Questions(Technical )20 Questions like what is the stress in xx section? 1)bending 2)axial loading 3)both General Aptitude questions like 1)What is the no of straight lines in this diagram, 2)Find NO of Triangles

1st 20 questions : Diagrammatic questions from SOM,E-MECH,DESIGN,ENGG DRAWING STAGE III: GROUP DISCUSSION: Quality will improve marketing of a product. Elimination round….Those who have dominated were shortlisted. Same topic for all the groups. ….12 out of 25 were shortlisted. STAGE IV: Interview Questions

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TECH INTERVIEW 1 : MANUFACTURING : 20- 30 MINS

TECH INTERVIEW 2 : DESIGN : 20-30 MINS HR INTERVIEW : 15 MINS NO ELIMINATION AT THE END OF EACH INTERVIEW…CUMMULATIVE.... 1. Questions on field of interest 2.stress-strain diagram –All processes Types of springs What is spring constant What is Pascal’s Law? Bernoulli’s theorem and it’s application Newton’s three laws of motion Reynolds no? where is it used? Can it be used in brakes? Boyle’s law,charles law In a balloon, both pressure and volume varies when u blow it. How will u apply boyle’s law in this situation? favourite subject in +2(physics) focal Length, unit of power of lens(dioptre) Types of protective coating specific gravity? Unit? what is 1 micron? screw guage and vernier caliper what r the CAD software u know? Given a component,asked the material and the manufacturing process HR Questions: Heat treatment

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