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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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Answer Posted / hiren
ASTM- American standard of testing material
ASME - American society of mechanical engineering
| Is This Answer Correct ? | 4 Yes | 5 No |
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