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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be

4 kN/m2
14 kN/m2
12 kN/m2
10 kN/m2

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Hydraulics and Fluid Mechanics in ME
The divergent portion of a Venturimeter is made longer than convergent portion in order to

None of these
Both (A) and (B)
Avoid the tendency of breaking away the stream of liquid
To minimize frictional losses

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Hydraulics and Fluid Mechanics in ME
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as

turbulent flow
steady flow
one dimensional flow
uniform flow

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Hydraulics and Fluid Mechanics in ME
Mercury does not wet glass. This is due to property of liquid known as

cohesion
viscosity
adhesion
surface tension

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the submerged body is called

Reaction
Buoyancy
Up-thrust
Metacentre

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Hydraulics and Fluid Mechanics in ME
Axial flow pump is started with its delivery valve

Kept fully closed
Kept 50% open
Kept fully open
Irrespective of any position

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