Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / karthick
viscosity is defined as the resistance offered by a fluid
to flow.whenever a fluid is subjected to shear stress it
cannot resist that shear so the fluid will start flow.so if
the fluid is more viscous it resists the shear applied
specific gravity is also termed as relative density.it is
defined as the ratio of density of a substance to density
of a std fluid.we can take water as the std fluid and its
density is 1000 kg/m^3
so if the sp.gravity is less than one then the substance is
less dense than water and it will float in water on the
other hand if sp.gravity is greater than one then the
substance will immerse in water
| Is This Answer Correct ? | 18 Yes | 1 No |
Post New Answer View All Answers
what is the difference between type -a and type -b iron > The chemical compostion is given here under and also guide us the effect of Ni;Cr;Mo in the iron; name and use of these two types of iron Type a Type b %C :3.15 2.65 %Mn:0.41 0.52 %Si:1.72 1.60 %S :0.090 0.082 %P: 0.215 0.204 %Ni: 0.40 Traces %Cr : 0.49 Traces %Mo : Traces Traces
what precautions must be used when water washing a boiler?
Why would you use pneumatics?
Study the attached ACS 790 AHU and boiler GUI and refer to the video on the software usage, catalog and the step by step document (page 9) to perform the following task: List in a table form the controllers and all their connected I/O for the boiler and the AHU.
How to exite natural frequencies in a overhung rotor
. What is a magnetic valve of refrigeration system?
How to find DG efficiency and unit per litre
sir i have applied for ntpc and engineers india can u suggest some books which have one words.
What materials use to make valve body, and What data needs to choose correct valve size
What causes turbocharger surging?
I'm a Mechanical Engineer (2007 passed out) 77% distinction degree holder from anna university chennai, tamilnadu. presently working in a software company, i'm interested in getting my job with Indian Railways. Can any one help me in how to know the vaccancies and applying for RRB.
what is lube oil cons./hours in diesel engine ???
What are the causes of turbine vibration
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?
i am a mechanical engg. student(fresher) . i am in kolkata. i want to prepare for govt. jobs like railway, ongc etc can anyone plz suggest me the good coaching for this in kolkata
