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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Capillarity
Surface tension
Viscosity
Compressibility

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Hydraulics and Fluid Mechanics in ME
A flow in which __________ force is dominating over the viscosity is called turbulent flow.

Viscous
Elastic
Inertia
Surface tension

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Hydraulics and Fluid Mechanics in ME
The Fourneyron turbine is _________ reaction turbine.

A mixed flow
An outward flow
An axial flow
An inward flow

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

is independent of temperature
decreases with increase in temperature
increases with increase in temperature
is independent of pressure for very high pressure intensities

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Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular notch is

Directly proportional to H3/2
Inversely proportional to H5/2
Inversely proportional to H3/2
Directly proportional to H5/2

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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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