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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as

center of buoyancy
metacentre
center of gravity
center of pressure

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Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ √H
P/ H3/2
P/ H²
P/ H

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Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Steady flow
Smooth and streamline flow
Laminar flow
Highly turbulent flow

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Double
One-half
Three fourth
Equal to

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Hydraulics and Fluid Mechanics in ME
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be

2 metres of water column
3 metres of water column
4 m of water column
3.5 metres of water column

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

wH2/2
wH2/3
wH
wH/2

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