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ESSAR interview Questions 2006

Posted on :17-02-2016
ESSAR Placement Paper - 2006:-

Q1. What is meant by corrosion resistant material?

Q2.  What is V-belt angle?

Q3. Centi poise is the unit of what?

Q4. Where is Clutch located?

Q5. What is the angle of contact between journal and bearing?

Q6. What is ACME thread angle?

Q7. Say true/false:
In simple gear train every shaft is attached with one simple gear only.
Radiation heat transfer is varied with T to the power of 4.

Q8. The condition of perfect vacuum that is at absolute zero pressure can be attained at?

Q9. Air Refrigerator works on?

Q10. Latent heat of vapourization at low pressure and temperature?

Q11. What is Rotational tendency of force?

Q12. What is the angle of contact between the journal and bearing?

Q13. Washer is used for-------.

Q14. What is poisson ratio?

Q15. Write the Composition of  babbit metal?

Q16. Dual cycle is the combination of which two cycles?

Q17. For which gear shafts are co-axial?

Q18. What is the Melting point of iron?

Q19. Which mechanism is used to hold the gear?

Q20. Frequency of a system is 3 Hz then find the speed in rpm?

Q21. Which law states that internal energy is function of Temperature?

Q22. What is the Horse power per tones of refrigeration?

Q23. The fatique life of a part can be improved by?

Q24. Heat generation of arc welding is due to?

Q25. Rupture strength= ?

Q26. Name any one non destructive test?

Q27. What is composition of the drill material?

Q28. What is Reynolds number range for laminar flow?

Q29. Minimum work done for an adiabatic process for the value of n?

Q30. When crude oil is heated, which Hydro carbon comes first?

Q31. Example for Non destructive test?

Q32. Carbon is added to steel to increase its hardness-True/False.

Q33. In drill tool carbon % is (< 0.4 %, 0.8% -1.6%, 1-2.5%)

Q34. Dye penetration test is 

a) pouring
b) surface tension
c) capillary
d) none


Q35. Surface endurance limit depends on 

a) toughness
b) surface tension
c) yield strength
d) surface finish


Q36. Cam size depends on

a) base circle
b) pitch circle
c) prime circle
d) none


Q37. Degree of freedom in super structure 

a) 1
b) positive
c) negative
d) zero


Q38. The key used in the gears for transmitting power

a) flat
b) saddle
c) spline
d) square


Q39. Finishing operation in lathe is done at

a) low speed
b) high speed


Q40. In a uniformly distributed load of 6n/m over a 5 meter length simply supported beam, the value of B.M at the point where shear force is zero 

a) 17.5
b) 22.5
c) 55
d) 75


Q41. Axial compressors follow the process in ideal conditions 

a) adiabatic
b) isotropic
c) isothermal


Q42. Endurance limit is depend upon-

a) toughness 
b) elasticity 
c) brittleness


Q43. Poisons ratio is higher in 

a) rubber
b) steel
c) wood


Q44. 1 watt = 1Nm/S, 1 h.p = ?kw

Q45. Axial shift in steam turbine occurs due to?

Q46. Difference between dedendum and addendum?

Q47. A structural member subjected to an axial compressive force is called?

Q48. Heavy machine beds are made of CI for-------.

Q49. In screw jack --------which thread is used?

Q50. What is the function of cutting fluid?

Q51. Name any one Gear material?

Q52. Cantilever beam failure of surface finish is represented by?

Q53. Name the refrigerant used in refrigerator?

Q54. Steady rest is used for?

Q55. What is the purpose of Supercharger?

Q56. 1Kg of carbon to CO, Amount oxygen required?

Q57. Scale formation on the surface of the boiler tubes due to?

Q58. Shaft revolving in a bearing belongs to which pair?

Q59. More viscous lub oil?

Q60. Pig iron is produced in which furnace?

Q61. Advantage of  V belt?

Q62. In gear boxes, which type of key is used?

Q63. Wings of airplane are made by---.

Q64. With increase in temperature--- Viscosity of liquid---.

Q65. For shock resistance and vibrations we use ----.

Q66. Forced draft has negative pressure drop (true or false).

Q67. Broaching is made to produce?

Q68. At what angle in the valve timing, Diesel engine injection occurs?

Q69. What is drill angle?

Q70. Nusselt (for natural) number is the function of which number?

Q71. In what angle does an object thrown height will travel the longest distance?

Q72. The frequency of transverse vibration is 3Hz then critical speed?

Q73. Acetylene is dissolved in which material?

Q74. To protect from thrust which type of follower is used?

Q75. What are the advantages of  V-belt?


  
   






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