hai, i am preparing for rrb section engineer writeen exam, can enyone help me out with last few years model question papers,my mail I.D. is gopi306@gmail.com. and is there any books to prepare for the exam.............

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what is mechnical engineering ?what is need of it in our life? is it essintial

1 Answers   KFIL,

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why more extraction are resticated in steam turbine?

1 Answers   MRF,

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Do u know epicyclic gear box?What are the pratical application of epicyclic gear box?

6 Answers  

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Explain why would some industries select pneumatics over hydraulic?

0 Answers  

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Why air is not used to run the turbine?

7 Answers  

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why the tanker lowery have elliptical shape?

2 Answers   ITC Infotech,

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What are sleeve and cotter joint?

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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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What will happen if we rotate the horizontal plane in anti-clock wise instead of clock wise and make the drawings in 2nd and 4th quadrant?Why the horizontal plane always rotates in clock wise?

1 Answers  

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How to decide the capacity of air compressor in an industry. What are the factors taken into consideration while selecting the capacity?.

1 Answers   DAE,

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Name the safety devices of diesel engine?

0 Answers   RRB,

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