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Hydraulics & Fluid Mechanics

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

ionisastion gauge
Bourdon tube
Pirani Gauge
Micro-manometer

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Hydraulics & Fluid Mechanics
Specific weight of sea water is more that of pure water because it contains

dissolved salt
dissolved air
suspended matter
All of these

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Hydraulics & Fluid Mechanics
Ay between two stream lines represents

pressure
velocity
discharge
head

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

H5/2
H1/2
H5’4 where H is head.
H3’2

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

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

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Hydraulics & Fluid Mechanics
A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will

remain same
increase
decrease
increase/decrease depending on depth of immersion

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