Answer / cmkashifabrar

The pressure exerted upon the earth's surface by the weight of
atmosphere above it.

Answer / san

the pressure exerted by the atmosphere

or

the amount of pressure the air around us exerts on our
bodies at sea level, about 14.7 pounds of pressure per
square inch

Although the secondary loop of a PWR is a closed loop but some noncondensible gases are entrained into the secondary feedwater. Write three probable sources of these noncondensible gases.

1 Answers   Trinity Technologies,

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what is diffusion heat transfer

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what is the unit of hardness

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What is the air flow rate at suction, if impeller of dia 1500mm and it consists of 8 no's vane, running at 1500 rpm? Dia of suction pipe is 500mm.

1 Answers  

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junior engineeer (railway previous questions)

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What is pitting ? How it is caused ?

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ifferent between technology & engineering?

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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 burnt-out point ?

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In 9E frame of gas turbine how many MW is used

1 Answers   OPG, PWW,

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application of two stroke engines

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why so dangerous charging compressed gas in to oil compressor

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