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 Categories >> Engineering >> Mechanical Engineering
 
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Question Asked @ Answers Views     Select
choking in pipe flow implies    1  4
why centrifugal pump used in I.D.fan and axial pump in F.D. fan    0  6
difference between statics and dynamics    1  8
What is difference between cast iron and grey cast iron.    0  12
what is use of dynamo.why r u using that..?    2  25
why r u using enjine oil inside of diesel generaters.what is the uses & why r using diesel by pass filter. plese kindly answer me sir..?    0  17
What is the least count of micrometer    3  29
how to calculate heat? i.e one glass water heat how much kelvin?    1  24
What is critical speed in turbine?    2  29
Im studing engineering, i wanna do MBA ftr engineering Is there any scope f doin mba ftr engineering??    1  23
What is the PLC in (in generator maintenance side) how to it's works and what is use of that    0  27
What is L 110 spider? What does L &110 indicate    1  36
If any machinery or transmission needs periodic ana regular lubrication . what is the best method to give it?    0  26
How to recommend which type of coupling is suitable in particular area    0  37
Differentiate Between High Speed coupling and high torque coupling with examples.    0  34
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Lowest temp in vapour compression cycle in :(Ans:Expansion devices) Contineous welding is type of :(Seam Welding) refrigerant in domestic Refrigerator:(R 134 A) Lowest critical temp of refrigerant:(Freon) Statement....this is .....law:(Avagadros law) Ratio reynold no to prandtl no is:(Pecelent no) if welding is done from right to left then what is the name welding:(Not known) slip gauges are made up of:(alloy steel) clearence between meeting surfaces is due to which gauges: question on rubby laser,rake angle,heat treatment processes,joules law,bell coleman cycle like a/c works on which cycle? 570
What do you do when in your duty, ME alarm oil mist detect high density? 778
What is the specific heat of water? 256
What causes turbocharger surging? 400
pls any one send me the last 5 years rrb QP - hari.devarajan@gmail.com 694
What is the sensitive part of the liner 459
What is the purpose of I.O. circulation before and after starting of engine? 275
What is a liquid flooding in refrigeration system? 420
sirplz send me nhpc techanical questions paper. 511
Dear sir-I WANT LAST FIVE YEARS RRB-CHENNAI QUESTION&ANSWER PAPER IN J.ENGG(GRADE:II)-MECHANICAL ENGINEER 601
i want to jspl Q&A,pls send this email id:var05mech@yahoo.co.in 286
why does bitumen heated from top side bt not from bottom sideā‚¬ 509
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? 442
why we do not megger to motor under system is very high vaccum condition. and what is the tempreture of vaccum conditon 327
how to find the L shape surface of the moment of inertia and section modulus. 569
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