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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The product of mass and acceleration of flowing liquid is called

Inertia force
Pressure force
Gravity force
Viscous force

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Hydraulics and Fluid Mechanics in ME
The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)

(p/W) × (A/a)
(p/W) × (a/A)
(W/p) × (a/A)
(W/p) × (A/a)

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Hydraulics and Fluid Mechanics in ME
When the flow parameters at any given instant remain same at every point, then flow is said to be

quasi static
laminar
uniform
steady state

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Hydraulics and Fluid Mechanics in ME
Choose the correct relationship

dynamicviscosity = kinematicviscosity x density
gravity = specific gravity x density
specific gravity = gravity x density
kinematicviscosity = dynamicviscosity x density

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump casing, the flow of water leaving the

Centrifugal
Radial
Axial
Vortex

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Hydraulics and Fluid Mechanics in ME
The Thomson's turbine is _________ reaction turbine.

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

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