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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The maximum number of jets generally employed in impulse turbine without jet interference is

6
4
12
8

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

head of water (h)
h2
h2
V/T

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Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

mid point between e.g. and center of buoyancy
vertical upward force through e.g. of body and center line of body
buoyant force and the center line of body
All of these

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Hydraulics and Fluid Mechanics in ME
The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)

μπ²NR⁴/60t
μπ²NR²/60t
μπ²NR/60t
μπ²NR³/60t

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

cohesion
compressibility
viscosity
adhesion

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is preferred for flood control and irrigation applications?

Centrifugal pump
Mixed flow pump
Reciprocating pump
Axial flow pump

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