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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 gravity
center of buoyancy
metacentre
center of pressure

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel is

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

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Hydraulics and Fluid Mechanics in ME
A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

14π R5/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)
14π R1/2/15Cd × a √(2g)
14π R7/2/15Cd × a √(2g)

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Hydraulics and Fluid Mechanics in ME
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between

Lift and tangential force
Drag and resultant force
Lift and resultant force
Lift and drag

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

102 watts
550 watts
735 watts
75 watts

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Hydraulics and Fluid Mechanics in ME
Water is a __________ fluid.

Ideal
Newtonian
Real
Non-Newtonian

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