Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

working principle of ballpoint pen?

8 33020

Detail About Disel Generators?


1 3538

Stress produce strain or strain produce stress.....?Explain?

Behr, Bhel, ONGC,

9 17096

What is breather frequency of tank?



How does axial thrust balance in multistage pump?


2 8517

What are the function of transduser,velocity sensor?


2 3715

How to analyse the best accuracy to micrometer than vernier?


4 7619

What is welding defect?

FAG, IOCL, Sona Koyo,

3 6172

when pump is maitaind throughly and installed perfectly then why pump vibrates on above standard vibration level?


4 5938

why we r recommended for pre-action sprinklers @ generator/tx/mv panel room. If any leakage there,that panel will damage. So what is the Logic for pre-action sprinklers there?



who was the frist rail ladies driver


2 3677

how to find out the area CFM calculation ?

4 15346

How tonnage can be controlled in PLC base hydraulic press

1 2889

can anyone plz send me question papers of DMRC for the post of junior engineer.(MECHANICAL) OR STATION CONTROLLER I wud b highly obliged. plz mail me at MANPREET SINGH



what is the difrence between goal and target?

1 3351

Post New Mechanical Engineering Questions

Un-Answered Questions { Mechanical Engineering }

what is the fuction of asstt. rigman drilling


Identify the common problems and solution for gas turbines, diesel generator and wind turbine during operation.


On what basis can sliding contact bearings be classified? Explain?


Explain the difference between afbc, bfbc, pfbc and pcfb in regard to fluidised bed technologies.


What is the use of multi tester?


What are the 3 parts in indicator diagram?


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?


What is the role of nitrogen in welding?


Explain the difference between upstream and downstream in a refinery?


When effect of variations in specific heats is considered then how do maximum temperature and pressure vary compared to air standard cycle ?


how the magnetic trains are leviated(MAGLEV)?


What are two types of clearance in a turbine?


Hai, iam renjith. my qtn about the calorex heat and cool pump. What is the reason of the above machine is trip on high pressure. r134a gas using in this system. 8 months old. model is calorex propac 90(3 phase). This system has 2 compressor. Both are starting on 13amps after that rise up to around 21 within 1 minute. After will be trip on high pressure. Showing 68 psi in suction side on standby mode. Can i have a solution without delay? Renjith


difference between machining and non-machining?


Define a slined joint?