My interview is on 21/09/07.Kindly send me the Questions and answers on 1)Inspection and testing of pumps & compressor, 2)Piping 3) HVAC

2 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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sir,,,, iam appearing in hpcl exam....so plz send previous papers to me of hpcl... anant

0 Answers   HPCL,

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WHAT IS GEAR TERMINOLOGY?

1 Answers   Focus Energy, Gammon, Honda, Shubham,

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What is Rig floor..?

0 Answers   National Drilling Company,

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3x3x2.5 m room temperature increases by 20 deg cel in 24 hours by a lamp of 100 w. then tell the temperature of the filament

0 Answers   Bhel,

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How are voltmeter and am meter connected in the circuit?

0 Answers   RRB,

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how much efficiency loss will took place in a steam turbine due to low vacuum

0 Answers   TATA,

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What is the difference between s.s to en8

2 Answers  

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Heat a vessel with water inside and cool it under tap suddenly. Now when we try to open it...It does not open easily ...why?

0 Answers   BARC,

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What are the different types of bearings?

0 Answers  

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What is Boyles Law

1 Answers   MEIL,

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