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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Reynold's number is the ratio of inertia force to

Viscous force
Gravity force
Pressure force
Elastic force

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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

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

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Depth of channel
Velocity of flow in an open channel
Depth of flow in an open channel
Hydraulic jump

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Newton's formula
Boyle's law
Archimedes principle
Pascal's law

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Hydraulics and Fluid Mechanics in ME
If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is

(V­1 - V2) / V1
(V­1² - V2²) / V1²
V1² / (V1² - V2²)
V1 / (V1 - V2)

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Hydraulics and Fluid Mechanics in ME
In the case of steady flow of a fluid, the acceleration of any fluid particle is

variable
constant
zero
zero under limiting conditions

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