Answer / anas hms

it is British standard for parallel thread pipe (G-external thread) i got this info on the following link---http://www.gewinde-normen.de/en/whitworth-pipe-thread.html

Mention some of the major contributions made by you in your present and previous jobs:

0 Answers  

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List the energy saving opportunities in air compressor system.

0 Answers   DAE,

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What the function of bye pass filter in DG.

0 Answers   Honda,

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what is draft and draft loss?in a boiler,how is draft created?

0 Answers  

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Turbo charger driven by.............? and wat its speed

7 Answers   Bhel, L&T,

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The lowest allowable insulation resistance?

0 Answers   RRB,

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What is the hottest part of refrigerant in the refrigeration system?

3 Answers   RRB,

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What is Lap welding?

0 Answers   John Deere,

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Two pumps connected in series , what will be the shape of QH curve ?. What will be the shape if they are in parallel.

1 Answers   Ferrari, IGCAR,

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What is polytropic process ? Under what conditions it approaches isobaric, isothermal, and isometric process ? In which reversible process no work is done ?

0 Answers  

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In volute casing the discharge area is more. so as per bernoulli's principle the pressure must be reduces also from the basics, pressure = Force/Area. so pressure and area are inversily proportional. By considering these two basic rules pressure must be reduces. But in any centrifugal pump, the pressure is increasing. How the velocity is converted into pressure. In my view only head is increases but how the pressure increases?

2 Answers  

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Give the function of evaporator?

1 Answers   RRB,

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