Answer / krishna

oil

Answer / harish

Actually the question itself is incomplete for example if
we are machining cast iron then air is the best lubricant,
If we are machining mild steel water is the best lubricant,
If we are machining alloy steels then mineral oils are the
best lubricants so we cant specifically say a particular
lubricant is better all the lubricants are equally
important.

Answer / sushil

oil

Answer / s.khan

oil is the best lub.

Answer / rakesh

no air is the best lubricant because lubricant means to
reduce the friction .i give a example to explain my
answer .megnatic traing .there is no oil no water only air
in b/w the track or train less friction as compaire to oil
and water

1 air
2 oil
3 water

Answer / g.sailendra reddy

oil

In d thermal power plant why D/A placed on height.

4 Answers  

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?

0 Answers   Bhel,

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PLZ SEND QUESTIONS OF MRF...URGENT........PLZ YAAAAR....

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1 Answers  

• What level of management did you consider this position to be?

1 Answers   Petro Star Mount,

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4 Answers  

On 22nd December, which of the following places has the largest day and shortest night ?

2 Answers  

different beetween blower and compressor

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0 Answers  

Dear all, Will some one help me in this issue please? We are entering the Zero Stock Component in Maintenance Order, and we make a Check when the order creator is going to release system will appear Error, until he will not delete that zero stock components from the Maintenance order. but right now what the order creator is not releasing the order but he is going to save order, when's he save the order without release system will generate Reservation in the back ground, which should not happen for Zero Stock Components ? I need the way which we are doing in MB21, Reservation creation by thru Cost Center / WBS Element. At present if you run MB21 and you are going to issue the material system will not allow to generate the reservation if there are zero stock components in the list. please guide me for this issue ? Note : Simple what I need is I don't want to create any reservation thru maintenance order for the Zero Stock Components. Regards, Abdul Mujeeb

0 Answers   Saudi Ceramics,

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0 Answers