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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

2.4 m
3.0 m
2.5 m
4.0 m

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Hydraulics and Fluid Mechanics in ME
In one dimensional flow, the flow

Takes place in straight line
Takes place in curve
Is steady and uniform
Takes place in one direction

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Hydraulics and Fluid Mechanics in ME
The weight per unit volume of a liquid at a standard temperature and pressure is called

Mass density
None of these
Specific weight
Specific gravity

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

compressibility
viscosity
cohesion
adhesion

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Hydraulics and Fluid Mechanics in ME
A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to empty the tank completely will be

(2AH₁)/(Cd × a√2g)
(2AH₁3/2)/(Cd × a√2g)
(2AH₁²)/(Cd × a√2g)
(2A√H₁)/(Cd × a√2g)

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

turbulent flow
uniform flow
steady flow
laminar flow

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