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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Say bolt
Orsat
Red wood
Engler

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Hydraulics and Fluid Mechanics in ME
A channel is said to be of most economical cross-section, if

It gives maximum discharge for a given cross-sectional area and bed slope
All of these
It involves lesser excavation for the designed amount of discharge
It has minimum wetted perimeter

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Hydraulics and Fluid Mechanics in ME
In a Kaplan turbine runner, the numbers of blades are generally between

2 to 4
8 to 16
16 to 24
4 to 8

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Hydraulics and Fluid Mechanics in ME
A flow in which the viscosity of fluid is dominating over the inertia force is called

Turbulent flow
Laminar flow
Steady flow
Unsteady flow

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Hydraulics and Fluid Mechanics in ME
A flow is called sub-sonic, if the Mach number is

Between 1 and 6
Less than unity
More than 6
Unity

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Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Ideal fluid
Water
Gas
Fluid

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