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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

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

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Hydraulics and Fluid Mechanics in ME
Low specific speed of a pump implies it is

Centrifugal pump
Mixed flow pump
Axial flow pump
None of these

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Hydraulics and Fluid Mechanics in ME
An object having 10 kg mass weighs 9.81 kg on a spring balance. The value of 'g' at this place is

10 m/sec²
9.75 m/sec²
9.81 m/sec²
9 m/sec

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Hydraulics and Fluid Mechanics in ME
A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

b²/12 + x̅
d²/12 + x̅
(d²/12 x̅) + x̅
(bd²/12) + x̅

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Hydraulics and Fluid Mechanics in ME
Gradually varied flow is

non-steady uniform
steady uniform
non-steady non-uniform
steady non-uniform

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is turbulent when Reynold number is

Between 2000 and 2800
None of these
More than 2800
Less than 2000

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