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Hydraulics & Hydraulic Machinery (HHM) -Question Bank
Hydraulics & Hydraulic Machinery UNIT – I
- Differentiate between critical, subcritical and supercritical flow in open channel.
- Explain the terms: i) rapidly varying flow ii)gradually varying flow.
- What do you understand by flow in an open channel?
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Hydraulics & Hydraulic Machinery UNIT – II
- What do you mean by fundamental and derived units? give examples
- Explain the term “dimensionally homogeneous equation”.
- Define the terms dimensional analysis and model analysis.
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Hydraulics & Hydraulic Machinery UNIT – III
- Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the direction of the jet.
- 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 center of the 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.
- Define the term impact of jets.
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Hydraulics & Hydraulic Machinery UNIT-IV
- Discuss the following efficiencies: i)hydraulic efficiency ii) mechanical efficiency iii)volumetric efficiency iv)overall efficiency.
- Discuss the
classification of hydraulic turbines.
- What is meant by the turbine?
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Hydraulics & Hydraulic Machinery UNIT – V
- Discuss the classification of pumps?
- Define the following: i) suction head ii) delivery head iii)static head.
- What is meant by a pump and discuss pump installation?
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