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Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

Where does Parallel flow heat exchanger use?

Bhel,

2069

how buoyancy force is realte with convection?

1857

WHAT IS THE UNIT OF ROUGHNESS

1 4841

WHAT IS THE MAGNITUDE OF HARDNESS OF DIAMOND .

2 6003

what is mean by Shrink fit & Press fit

1 4358

What is IS standard in case of mode of measurement for ducting

2180

how to convert mechanical pressure of hand into rotational motion

1 5902

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

Saudi Ceramics,

1810

What is the difference between Maintenance Order and Production Order. the point is i want to know the affection of Movement type 261 thru maintenance order and Production order. if i change any settings for Maintenance order it will affect to production order process also for 261 movement type ?

Saudi Ceramics,

2483

what is the total power generated in india and in world?

Essar,

1 3969

Can you explain,what is entropy?Also tell us what happened in terms of ENTROPY when you give heat to a sealed tube containing half of water?

IFFCO, NTPC,

5 11038

How to calculate the moment of inertia for a circuit board?

1 4009

Is there a lower limit to the gland surface finish for static O-rings, gaseous system? surface finish table lists 0.41-0.81 micro-meters for static gaseous systems. What is the drawback of using a smoother surface finish lower than 0.41?

1879

Why the gear drives said to be power transmitting device?While it transmitting motion only.

Infosys,

2 6799

what is the working principle of a vibration meter?

NPCIL,

5346


Post New Mechanical Engineering Questions

Un-Answered Questions { Mechanical Engineering }

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?

2155


Give one example of metal classified as per structure as bcc, fcc, hcp and ccp.

1055


What can be reasons for a metal gas-kit to leak?

1506


What is the importance of thermostat in the cooling system of an engine?

1107


What causes cylinder liner-wear down?

2176


book name for the written test of rrb exam

2663


What is net refrigerating effect of the refrigerant?

1040


Explain how is martensite structure formed in steel?

1045


sir, i am completed in diplamo. can i join in iit, anna univercity as lateral entry. pls reply me sir.

1822


i m a 1st year student my senior asks me 2 give intro wht will a impressive answer

2197


please msg me tecnical question of hpcl

2124


Explain mechanical refrigeration.

1090


what is the thickness tolerances up to 32 mm

2069


Explain the difference between “stress and strain”?

1072


draw diagram of automobile,its working function,purpose of differential?

2190