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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of

1
1.2
0.8
0.75

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Hydraulics and Fluid Mechanics in ME
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

Two-third
Equal to
Three-fourth
One-third

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Hydraulics and Fluid Mechanics in ME
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

Bulk modulus
Stagnation pressure
Lift
Drag

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Hydraulics and Fluid Mechanics in ME
A one dimensional flow is one which

takes place in straight lines
is uniform flow
is steady uniform flow
involves zero transverse component of flow

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Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

shows erratic behaviour
increases
remains same
decreases

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Hydraulics and Fluid Mechanics in ME
A double overhung Pelton wheel has

Two jets
Two runners
Four runners
Four jets

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