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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An error of 1% in measuring head over the apex of the notch (H) will produce an error of _________ in discharge over a triangular notch.

0.01
0.02
0.025
0.015

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Pressure with which the liquid is displaced
Weight of the liquid displaced
Compressibility of the liquid
Viscosity of the liquid

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

work
energy
mass
momentum

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and buoyancy force
pressure force and inertial force
inertial force and gravity
viscous force and inertial force

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Hydraulics and Fluid Mechanics in ME
The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

4 km
20 km
8 km
32 km

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Hydraulics and Fluid Mechanics in ME
Choose the wrong statement. Alcohol is used in manometer, because

It provides longer length for a given pressure difference
It provides suitable meniscus for the inclined tube
Its vapour pressure is low
Its density is less

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