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 Categories >> Engineering >> Mechanical Engineering
 
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Question Asked @ Answers Views     Select
Which bearing offers lowest friction?    4  825
Question for mech.engineer in dmrc    0  164
Pipe Lin Question reliance   1  444
what should be sensor sensitivity of accelerometer in vibration? And what is the main difference between accelerometer and proximity sensors and others? reliance   0  166
What is the difference between kg/cm2 / Bar /psi in pressure units?    1  425
How work the mobail vibrator    0  98
whether its necessary to consider erw pipes as a seam pipe hyundai   0  186
what will happen if diesel engine make to run with petrol hyundai   4  1580
in what aspects discbrakes are better than drum brake hyundai   0  127
ice can float on the surface of water?    3  462
1 ton equal to    2  633
How to find the bearing dimension from its number for ex 24040    0  277
How to calculate the bearing size ? Ex; 6307 sagar-cements   1  1352
how many types of oil spilling available .what types of tools using for oil spillling precautions. l&t   0  294
How many types of oil spilling available? l&t   0  126
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Un-Answered Questions
 
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What are the causes of low compression in the main engine? 161
What valves are fitted in a four-stroke diesel engine? 114
Name the parts of piston through connecting rod? 141
If you have a valve with an applied pressure, how do you determine the stress to the closed and open valve? 155
what is over ball dimmention? why it is required? what is used in machining? 244
What is the cause of cylindrical liner overheating? 159
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? 198
a rollin mill is spacified by 109
Difference be betwin Fe-500 as per IS 226-1975 & IS 2062-2006 437
which power station plants r more efficient? which is less? which is most expensive and which is cheapest? 125
What are the causes of troubles in boiler during operations? 128
What is the indication of leaking starting valve of an engine? 124
What is the formula to calculate how to find the amperes in 1ton and how many btu 240
Steps In starting boilers. 124
plz anyone provide me the sample test papers of ONGC as of i m from Mechanical engg bakground and would be appearing for the test in the june 2010. My email id - neeraj_94312@rediffmail.com 157
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