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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is given by the equation

N√P / H3
N√P / H5/4
N√P / H²
N√P / H3/2

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Hydraulics and Fluid Mechanics in ME
A hydraulic intensifier normally consists of

Two coaxial rams and two cylinders
A cylinder, a piston, storage tank and control valve
A cylinder and a ram
Two cylinders, two rams and a storage device

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is equal to

dynamic viscosity/density
dynamicviscosity x density
1/dynamicviscosity x density
density/dynamic viscosity

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Hydraulics and Fluid Mechanics in ME
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)

4μvl/wd²
16μvl/wd²
32μvl/wd²
8μvl/wd²

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Hydraulics and Fluid Mechanics in ME
The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

More than
Less than
None of these
Equal to

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Hydraulics and Fluid Mechanics in ME
Hydrometer is used to determine

specific gravity of gases
relative humidity
specific gravity of solids
specific gravity of liquids

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