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Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

How can be calculate discharge of id fan. impeller dia-800 mm,motor capacity 10 hp 2800 rpm,blower opening section 230*130 mm

3787

If anybody has placement papers for igl , plz send to me as soon my exam is on 12 Jan. My mail I'd is navjot.singh800@gmail.com

Indraprastha Gas Limited IGL,

2633

why pneumatic engine is not used now a days

1 5938

how many types of jacks

2469

How to make a vacuum

Cairn, IIT,

3 6286

what is the rpm of Turbocharger of Cummins KTA50G3 Diesel Engine?/ Normally What is the rpm of Turbocharger for any 1 MW Engine?

HMT,

2813

Hi, How I can calculate mass flow rate for an axial fan with diameter "400mm" and speed 1500RPM? thx

Bharat Gears,

1 2813

My vendor filled liquid oxygen in our 11000 liter capacity tank. He filled from 1400 MMWC up to 3200 MMWC. I followed the provided conversion table and found that we had been supplied 1800 MMWC liquid which is going to yield 2815 cubic meter. On the other hand, the vendor claims that he supplied as follows:- 5236 cub mtr(3200 MMWC)-2124 cub mtr(1400MMWC) = 3112 cub mtr. I fear that he wants to charge 297 cubic meters extra. He claims that my method was wrong and his was right. He says that this disparity is because of the conical shape of the base of the flask. I will be thankful if somebody can explain me the truth.

3353

Explain about front drive mechanism in vehicle

Eicher,

1754

What is the acronym FAT

1 3133

hra

1 3150

whats the coloring code of a air to open or a air to close valve?

1769

How to get a pipe weight? if we have know only diameter and length.

Bhel,

2 4839

what are the measuring instrument used to measure Radial and axial clearances of the gas turbine?

1 3217

what is the bow of the shaft?

MRF,

1 3198


Post New Mechanical Engineering Questions

Un-Answered Questions { Mechanical Engineering }

What do you mean by annealing?

1216


plz send me interview questions for POWER GENERATING CORPORATION LIMITED. my mail id is "ajaymits2004@yahoo.com"

1892


draw diagram of automobile,its working function,purpose of differential?

2191


IF RPM OF PTO OF TRACTOR IS 540,torque at pto is 21kg/cm sq.& WE NEED IT TO 1800 RPM ,THROUGH GEAR ONLY FOR THAT WHAT WOULD BE ETHE GEAR STRUCTURE( I.E.NO TEETH OF BOTH GEAR ) IN ORDER TO GET 1800 RPM OUTPUT.

2259


Would you be able to join our organization in a month"s time?

1898


What should you do before you start the engine?

2179


Explain the difference between projectile motion and rocket motion.

1208


1. What are good characteristics of good combustion in a boiler? 2. What do you analyze from boiler water analysis? 3. What do you treat in high alkalinity of boiler water? 4. What is a feed water pump? Dearator feed heater? 5. What is the purpose of the nozzle of impulse turbine? 6. What are the things needed to have an efficient boiler burning? 7. Name Of Parts And Each Purpose 8. What are the causes of emergency stop in a steam engine? 9. What is the normal vacuum pressure in a steam turbine atmospheric condenser? What would cause the press to falls? 10. Steam turbine (function an parts) 11. What is the boiling point of water? 12. What are the safety devices of boiler? 13. What is the effect of high alkaline water to a boiler? 14. Steps In starting boilers. 15. Small gear found in the steam turbine. 16. What is an Economizer? 17. What are the methods of heat transfer? 18. Types of pressure 19. What are the different parts of impulse reaction turbine? 20. What is the color of the flame of the boiler running in good condition? 21. What type of pump is commonly used is feed water system in auxiliary boiler? 22. What is the specific heat of water? 23. What do you do to prevent flare black? 24. What is a brake horsepower? 25. What is the purpose of a de-superheater? 26. What is the purpose of corrugated furnaces? 27. What are the causes of steam turbine failure? 28. What is the purpose of superheater? 29. Given a cutaway isometric view of the steam turbine. Examinee was asked to identify the following Parts: 30. What is thrust bearing? 31. Give five boiler mounting valves. 32. In steam boiler, what are the various test in water boiler? 33. How much calorific value of heat is needed to heat 00c of 34. What will happen if boiler backfires? 35. What is the color of flame if the boiler is running in good condition? How about when it is not in good condition? 36. How does the steam work in a steam turbine? 37. What are the causes of boiler backfire and steps in how to prevent it from happening? 38. What are the causes of high alkalinity in boiler water? 39. What are sensible heat, latent heat, and specific heat of water? 40. What are the causes of turbine vibration 41. Identify the parts of steam turbine 42. What is the normal Ph value of boiler water 43. Causes of dilution of lubricating oil in a steam turbine? 44. Explain briefly- good combustion of auxiliary boiler? 45. Method of testing or checking boiler water? 46. What is mean carry over of Aux. Boiler? 47. What are steam turbine parts usually come into damage? 48. Why must we pay attention when we drain steam in steam turbine. What factors are observed? 49. What type of pump use in boiler F.O. system? 50. What parameters to be reported when we send lubricating oil for shore analysis? 51. In boiler, what does steam and smoke goes out to the funnel. What reason? 52. Where can you find the feed check valve and feed stop valve and give the purpose of it? 53. What are the causes of troubles in boiler during operations? 54. Give the purpose of nozzle in impulse turbine? 55. What s gland sealing steam? 56. How to prevent back fire of boiler? 57. What is the used of economizer in boiler? 58. What is the seal packing gland for turbine? 59. What is the flow of steam in an impulse turbine? 60. What will happen if you blow the soot in the boiler? 61. State the purpose of air heater? 62. How to operate soot blower boiler and economizer? 63. What do you mean by A.CC.? 64. What is the thermal efficiency of a diesel engine? 65. What is a blow down valves?

2155


Explain the cycle of refrigeration system.

2039


How are voltmeter and am meter connected in the circuit?

1889


What device installed in the F.O. system when excess oil return to drain tank?

1938


Define a positive displacement pump?

1056


sir i have applied for ntpc and engineers india can u suggest some books which have one words.

1804


why mechanical engineering in US universtiy??

2243


What is difference between ASME EN & IS related welding procedures(WPS/PQR/WPQ)

3929