Answer / lav kush gupta

it is the refrigeration effect produced by melting of 1 ton
of ice from or at 0c in 24 hours.

Answer / cmkashifabrar

The amount of heat absorbed by melting one ton of ice in 24
hours.

what r kinds of energies? or types of energies

2 Answers  

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What is hammering in steam or water flow pipe line. how it is happening.

3 Answers  

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Hi i am balaji, what is the difference grade avail in welding electordes ?

0 Answers   Maruti Suzuki, Tata Motors,

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What is the specific gravity or relative density of fuel oil?

0 Answers   RRB,

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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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What is the used of economizer in boiler?

1 Answers   ABC Inc, RRB, Siemens,

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How to protect the pipe line from crrossion.?

9 Answers   MAHINDRA,

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What is view factor ?

0 Answers  

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Explain working of francis turbine?

0 Answers   John Deere,

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what is over ball dimmention? why it is required? what is used in machining?

0 Answers   BEML, Greaves,

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Who invented the four-stroke engine?

0 Answers  

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why spur gear making noise douring running, why spur gear teeth get crack, what is the effect of heat treatment on spur gear how to reduce the noise bet gear

1 Answers  

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