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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of gravity
center of buoyancy
water surface
center of pressure

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Hydraulics and Fluid Mechanics in ME
A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is

4.5 kN/m3
7.5 kN/m3
6 kN/m3
10 kN/m3

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Hydraulics and Fluid Mechanics in ME
A notch is used to measure __________ of liquids.

Volume
Discharge
Pressure
Velocity

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Hydraulics and Fluid Mechanics in ME
The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

wH
wH/2
wH2/2
wH2/4

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel is

Inward flow impulse turbine
Outward flow impulse turbine
Tangential flow impulse turbine
Inward flow reaction turbine

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Hydraulics and Fluid Mechanics in ME
According to equation of continuity,

w1a1 = w2a2
w1v1 = w2v2
a1/v1 = a2/v2
a1v1 = a2v2

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