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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

Orifice
None of these
Notch
Weir

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Hydraulics and Fluid Mechanics in ME
The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)

(q²/g)1/3
(q/g)1/2
(q⁴/g)1/5
(q³/g)1/4

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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.

Equal to
Three-fourth
One-third
Two-third

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Hydraulics and Fluid Mechanics in ME
Viscosity of water in comparison to mercury is

Higher
Higher/lower depending on temperature
Same
Lower

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Hydraulics and Fluid Mechanics in ME
In a free vortex motion, the radial component of velocity everywhere is

maximum
zero
non-zero and finite
minimum

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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.

Sum
Product
Difference
None of these

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