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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Reynold's number
Froude's number
Weber's number
Euler's number

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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

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

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Hydraulics and Fluid Mechanics in ME
A fluid in equilibrium can't sustain

Compressive stress
Shear stress
Tensile stress
Bending stress

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Hydraulics and Fluid Mechanics in ME
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

1000 kg
1 kg
100 kg
10 kg

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Hydraulics and Fluid Mechanics in ME
Viscosity of water in comparison to mercury is

Same
Higher/lower depending on temperature
Lower
Higher

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Hydraulics and Fluid Mechanics in ME
The pressure at the summit of a syphon is

equal to atmospheric
more than atmospheric
less than atmospheric
None of these

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