Hydraulics & Hydraulic Machinery Important Questions – HHM Imp Qusts

Hydraulics & Hydraulic Machinery Important Questions Pdf file – HHM Imp Qusts

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UNIT – I

1. What do you understand by flow in open channel?
2. Differentiate between critical , sub critical and super critical flow in open channel.
3. Explain the terms : i) rapidly varying flow ii)gradually varying flow.

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UNIT – II

1. Define the terms dimensional analysis and model analysis.
2. What do you mean by fundamental and derived units ?give examples
3. Explain the term “dimensionally homogeneous equation”.

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UNIT – III

1. Define the term impact of jets
2. Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the direction of jet.
3. Water is flowing through a pipe at the end of which a nozzle is fitted .the diameter of the nozzle 100mm and the head of water at the centre of nozzle is 100 m .find the force exerted by the jet of water on a fixed vertical plate .the coefficient of velocity is given as 0.95.

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UNIT – IV

1. What is meant by turbine?
2. Discuss about following efficiencies : i)hydraulic efficiency ii) mechanical efficiency iii)volumetric efficiency iv)over all efficiency.
3. Discuss about classification of hydraulic turbines.

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UNIT – V

1. What is meant by pump and discuss about pump installation?
2. Discuss about classification of pumps?
3. Define the following :i) suction head ii) delivery head iii)static head

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