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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The gross or total head of the turbine is the ___________ of the water levels at the head race and tail race.

Product
None of these
Sum
Difference

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Hydraulics and Fluid Mechanics in ME
A point, in a compressible flow where the velocity of fluid is zero, is called

None of the listed here
Stagnation point
Vena contracta
Critical point

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Hydraulics and Fluid Mechanics in ME
The specific weight of water in S.I. units is taken as

9.81 × 103 N/m3
Any one of these
9.81 × 10-6 N/mm3
9.81 kN/m3

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Hydraulics and Fluid Mechanics in ME
Principle of similitude forms the basis of

hydraulic designs
comparing similarity between design and actual equipment
comparing two identical equipments
designing models so that the result can be converted to prototypes

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the discharge is same through each pipe
the discharge through each pipe is added to obtain total discharge
a trial solution is not necessary
the head loss is same through each pipe

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Hydraulics and Fluid Mechanics in ME
Hot wire anemometer is used to measure

Gas velocities
Liquid discharge
Pressure in gases
Pressure in liquids

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