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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The discharge through a V- notch varies as

H3’2
H5’4 where H is head.
H1/2
H5/2

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Hydraulics & Fluid Mechanics
For measuring flow by a venturimeter, if should be installed in

in any direction and in any location.
horizontal line
inclined line with upward flow
vertical line

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

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

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific volume
specific weight
specific gravity
specific speed

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Hydraulics & Fluid Mechanics
An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is

9.75 m/sec²
10m/sec²
9.81 m/sec²
10.2/m sec

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Hydraulics & Fluid Mechanics
In which of the following the friction drag is generally larger than pressure drag?

a cylinder
a sphere
a circular disc or plate held normal to flow
an airfoil

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