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.

1 Answers  

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When is the maximum load on the lift/elevator,during ascending or descending?Explain.

5 Answers   MN Dastur, SPL,

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Which are the reference fuels for knock rating of s.i. Engines ?

0 Answers  

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What is mechanism?

0 Answers  

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what for orifice using in liquid flow line

9 Answers  

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when eating ice cream, why the spoon of wooden material is always straight & plastic spoon is always convex in shape?

5 Answers  

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IF 125 kva diesel generator generating 13 kw energy in an hour then how much percentage of load is connected to generator and generator is running at what load efficiency

2 Answers  

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Why Air Conditioner capacity measured in Ton. Like 1.5ton

1 Answers  

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What Equilibrium?

3 Answers   SVNIT,

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What is dtsi? Why it is used in motor bikes?

0 Answers  

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specific gravity of water

9 Answers   JSW,

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I am BITS Pilani , Mechanical Engineering graduate, with aggregate 55%........and since most of the top PSU's have 60% eligibility criteria, I don't know what to do.... Is there no way I could apply in PSUs like, NTPC, ONGC, BPCL etc ever? please reply guys!!!

2 Answers  

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