Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

How to calculate tonnage for embossing or serration washer?

IIS,

1 773

To operate 4 ac of 2 tons how kva genatator need

395

Can anybody please tell me from where I can get sample placement papers so that ii can prepare accordingly.

418




what are the evidence required for checking when pay money in backdoor job process

399

Is it required to conduct pressure test for fire fighting line

BEC,

1 534

22216 CC bearing

410

why with the increase of pressure latent heat of steam decreases?

671

Kaplan turbine is used for _______head

Sanmar,

3 1488




what is the difference in Gas Welding and Gas Cutting?? Second Question is for Huge Casting which method is used??

Bhel,

463

what is line balancing

Studds Accessories,

463

What is turbocharger and his rpm

JMD,

386

What is the difference between tube and pipe?

442

why boiler is closed system ?

596

4 stroke engine have how many suctions

Varun Motors,

1 1405

material grade c 45

374


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Un-Answered Questions { Mechanical Engineering }

Purpose of evaporator in refrigeration system.

780


What is the trunk type and crosshead type piston

1308


"How to check the diode, fuse and bearer switch?"

830


Steering handle (round dial) of motor vehicles (CAR,BUS,LORRY) wiil be designing with two cross supports without 180 degree straightness( it will be little bit cross). Why?

753


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?

1044






Can anybody please tell me from where I can get sample placement papers so that ii can prepare accordingly.

418


material grade c 45

374


What are the causes of boiler backfire and steps in how to prevent it from happening?

787


What are the 3 parts in indicator diagram?

705


Is there a lower limit to the gland surface finish for static O-rings, gaseous system? surface finish table lists 0.41-0.81 micro-meters for static gaseous systems. What is the drawback of using a smoother surface finish lower than 0.41?

694


in aviation, How does control valves work?

718


I want to know flow rate,max pressure drop,heat load,design pressure,test presurre,temp both inlet and outlet of coldside and hot side of 1,2,3,5,5.5,7.5,10,12,15 tons

711


What is add number

255


What are the properties of fuel oil?

821


What is a brake horse power?

737