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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The units of viscosity are

newton-sec/metre
kg sec/metre
newton-sec/metre2
metre2/se

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Hydraulics & Fluid Mechanics
An open vessel of water is accelerated up an inclined plane. The free water surface will

any one of above is possible
make an angle in opposite direction to inclination of inclined plane
be horizontal
make an angle in direction of inclination of inclined plane

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Hydraulics & Fluid Mechanics
The discharge of a liquid of kinematic viscosity 4 cm²/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is

TRANSITION FLOW
LAMINAR FLOW
TURBULENT FLOW
NOT PREDICTABLE FROM THE GIVEN DATA

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Hydraulics & Fluid Mechanics
For a floating body to be in equilibrium

meta center should be above e.g.
a righting couple should be formed
All of these
center of buoyancy and e.g. must lie on same vertical plane

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Hydraulics & Fluid Mechanics
A perfect gas

is of theoretical interest
is incompressible
None of these
has constant viscosity

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

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

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