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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be

600
675
337.5
300

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Hydraulics & Fluid Mechanics
A large Roynold number is indication of

highly turbulent flow.
LAMINAR FLOW
smooth and streamline flow
turbulent flow

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Hydraulics & Fluid Mechanics
Pressure of the order of 10''' torr can be measured by

ionisastion gauge
Pirani Gauge
Micro-manometer
Bourdon tube

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Hydraulics & Fluid Mechanics
A fluid is said to be ideal, if it is

incompressible
inviscous and compressible
inviscous
inviscous and incompressible

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Hydraulics & Fluid Mechanics
When a body floating in a liquid, is displaced slightly, it oscillates about

metacentre
center of pressure
center of buoyancy
e.g. of body

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Hydraulics & Fluid Mechanics
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

specific weight
specific mass
specific density
specific gravity

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MORE MCQ ON Hydraulics & Fluid Mechanics

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