Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

Which type of question u have asked to the fresher

JCB,

239

Which will be more suitable to make a shaft from these - EN8 , EN9 , EN 24. and what will be the life of shaft by these material?

266

let we know the formula to get od & width of the bearing from its no.

239




how to check quality of steel?

256

good book for material science and catia v 5 high scope domin to make career

205

I have purchased some circlips @rs 100/- p pc on 01.01.2017 ans some @rs.120/- p pc/@rs.90/- p pc dt. 31.03.2017 what is the ending price of per pcs

238

The efficiency of a pin fin with insulated tip is

266

What is add number

Axis Global Automation,

255




Which types of questions ask in pool campus pune in technical and aptitude test

Dana Group,

241

how to calculate GD square for pump?

229

When mesuring the flow of liquid what are the two things to measure?

Reliance,

220

If any machinery or trnsmission needs periodic and regular lubrication what is the best method to give?

Essar,

278

What is torque converter?

272

What are the different type of mechanism to engage primary moving engine and transmission [ In other word how many different type of clutches are there

Ford,

233

In order to ensure constant pressure and constant flow rate of compressed air what should we put between the compressure and end user?

202


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Un-Answered Questions { Mechanical Engineering }

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?

974


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.

1590


Name Of Parts And Each Purpose

806


tell about a type when u had to use ur presentation skill to influence someone's.

706


Small gear found in the steam turbine.

783






What happen when the expansion valve is excessively open?

730


how can I calculate daya of pump

645


Why in screw & centrifugal compressor using rolor bearing

791


what is run out? how to calulate run out vaue.

805


SIR I M STUDENT OF POWER ENGG CAN I GIV PSU XAM 4 NTPC AND WHAT WOULD B THE PROCEDURE

1038


HOW I SHOULD CALCULATE HEAT LOUD

662


How to find the max load of the engine?

860


HOW MUCH HARDNESS OF CAST IRON?

842


why not a.c supply used to charged the lead acid battery

788


general diesel engine we are using 15w 40 oil unfortunatley our oiller mis used the oil hudralic oil refilled when he doing the service which kind proplem coming in future?

1016