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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML r²
ML²T²
ML°T⁻²
ML°T

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Hydraulics and Fluid Mechanics in ME
The runaway speed of a hydraulic turbine is the speed

At which the turbine will run freely without load
At full load
At which there will be no damage to the runner
Corresponding to maximum overload permissible

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Hydraulics and Fluid Mechanics in ME
Newton's law of viscosity is a relationship between

Pressure, velocity and temperature
Shear stress and velocity
Shear stress and rate of shear strain
Rate of shear strain and temperature

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure on an immersed surface __________ with the increase in depth.

Increases
Does not change
Decreases
None of these

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Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by

dQ/Q = 3/2 × (dH/H)
dQ/Q = 5/2 × (dH/H)
dQ/Q = 2 × (dH/H)
dQ/Q = 3 × (dH/H)

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Hydraulics and Fluid Mechanics in ME
Hydrometer is used to determine

specific gravity of solids
specific gravity of gases
relative humidity
specific gravity of liquids

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