types of stainless steel.why does this called stainless.what is passivation related to SS? What is sensitisation in stainless? Examples of diffrent type of steel e.g. austenatic,martensite,ferritic etc. 304,303,316. How to get rid of carbide formation in SS and stablization in SS.(347 etc.)Different type of heat treatments. Iron carbon diagram. Nelson chart with respect to corosion. Diffrent type of corosion and causes. Carbon equvalent number. Welding related questions.(requirement of post and pre heating in welding). welding of SS. If you have pre experience in maintenance then Material and welding related questions will be there. Then various types equipment in plant (a) static (b) rotatic in pumps and compressor,turbines funda of balance drum and balance disc, balancing line. Impulse wheel, wheel chamber pressure and its effect on turbone health if this increases. Thermal expansion of turbines and with respect to how foundation bolting are designed. Fixing of lower casing before dismantling. Most important shaft alignment and balancing of rotating equipment,classification of static and rotatic equpment used in process plants. Materials for diffrent services as refinery plants fertilizer plants, cement plants, sulphur plants, crude oil with higher sulphur services, then third important thing is codes, standards and recommended practices of diffrent organisation like ASTM,ASME,API,TEMA,BIS,IS,ISO,NPFA,OISD etc. diffrent type of work permit systems fire and safety point of view.

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What is the date of first titan launch from cape canaveral?

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Define Grashof number and its significance?

0 Answers   John Deere,

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Discuss how to prepare the M/E in the standby condition

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Give the purpose of nozzle in impulse turbine?

2 Answers   ABC Inc, RRB, Siemens,

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on which date sail exam is held & what the criteria for this exam

0 Answers   Sail,

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What is the purpose of engine preheating?

1 Answers   RRB,

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what is exactly peripheral velocity in case of two meshing gears?

2 Answers   Intel,

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How do we calculate the CFT?

1 Answers  

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Name the refrigerant that is the replacement of R12?

2 Answers  

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what is counter weights. Why the ship cranes are not having counter weights irrespect of industrial & civil construction cranes are having counter weights.

1 Answers  

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calculate the expantion of steel bar 2,5 long if its temperature rises from 20 degrees to 250 degrees and its co effient of expantion is 0,000011 mm degrees

0 Answers  

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