What does a pump develops? Flow or Pressure. Give the Answer with Proper Logic.

22 Answers   Essar,

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How we can find the pressure of valve by knowing its class ?

1 Answers  

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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.

1 Answers  

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why does bitumen heated from top side bt not from bottom side€

0 Answers   Denso, Gammon, Punj Lloyd Ltd,

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Explain how the lubricating oil circulates in a diesel engine.

0 Answers  

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Why an increase in area is required to produce an increase of velocity in case of supersonic flow ?

0 Answers  

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What is the difference between induced draft and forced draft fan? where are they used?

3 Answers  

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What are the requirements of a good fuel?

0 Answers   RRB,

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What is the difference between column and strut ?

0 Answers  

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For conduction of heat, the instantaneous rate of heat flow is product of three factors. What are these ?

0 Answers  

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Kaplan turbine is used for _______head

3 Answers   Sanmar,

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What causes steam turbine governer hunting?

7 Answers   Bhel,

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