Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

If you want to provide water or any chemical @ 50 meter height how much head will you prefer for any selected pump...consider it is M.S pipings...how much friction loss will be there...show with calculation.

Reliance,

1022

How to check temperature controller?

837

If we heat the rod what will happen,draw stress & strain curve before after heating ?

IGCAR,

1109




What speed you will select to drill 10 mm. In MS Plate ?

IGCAR,

1 2081

what is milling and types of milling?what is drilling and types of drilling? what is tapering and their types?

TVS, IOCL,

1763

What happens if we interchange fuels in IC engine...

KTTM,

3 3324

What is code used in process piping system?

4 2921

how much standard used in Piping system

Greenko,

1 2908




what is mean by DBSE?

Sabic, SSC, VHEL,

1 3094

WHAT IS THE LOWER LIMIT & UPPER LIMIT WHEN DIMENSION IS 9.0- 0.042-0.027

ASD Lab, Brady,

3 2043

how to calculet the volume of torispherical head in pressure vessle design?

Debre Markos University,

1 1401

When flow is supersonic then the converging and diverging passage is respectively known as??????

Reliance, HPCL, BPCL Bharat Petroleum,

4 8549

Which pipe should I use SAW, ERW or seamless if I have the following constraints I have to transport methane gas Size is 8” Corrosive environment Sulphide is present Also tell the cost comparison

SMEC,

674

which type of air compressor is best between reciprocating and rotary. I used this compressor in our new mitsubishi type laser machine

Borouge, Sail, Sabic,

1 2777

i having 7.5 kva 1 phase genset,coolant water level is low, so i mix the normal water this is correct or not

1 1557


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Un-Answered Questions { Mechanical Engineering }

What pressure is highest L.O. Gravity Head or S.W. of the stern tube circulation

889


In 10.00-20 tyre. what is the meaning of .00 ( after10) ?

606


WHAT IS MEAN BY DENSITY COMPESATIVE STEAM FLOW EXPLANE?

1208


why desuperheater tubes are bend in shape

1449


sir i am working in CIM Technologies , AS DESIGN ENGINEER, I WANT TO PREPARER FOR INTERVIEW TO THE DESIGN PLEASE SUGGEST HOW TO PREPARE FOR INTERVIEW

793






What resistance the ship encounter when the vessel is at sea

713


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?

947


difference between internal energy and enthalpy?

872


What is add number

176


Working Detail of enging?

828


what is air intake system

709


Name of the tables which is going to join two tables in querry ?

634


What is vane diagram in centrifugal pump?

868


Dear Sir, i want to know formula for steel BAR/SQUARE/HEX/FLAT>LENGTH. SUPPOSE I PURCHASE 10 KG OF ROUND BAR OF DIA. 20MM SO WHAT LENGHT I GET. SAME FORMULA FOR HEX/SQUARE.?

652


why have u choose this ME-engg design department

860