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Hydraulics & Fluid Mechanics

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

Pirani Gauge
Micro-manometer
Bourdon tube
ionisastion gauge

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Hydraulics & Fluid Mechanics
A large Roynold number is indication of

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

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Hydraulics & Fluid Mechanics
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

5.0 above the hydraulic gradient
6.4 m above the hydraulic gradient
10.0 m above the hydraulic gradient
2.4 m above the hydraulic gradient

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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

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

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

specific density
specific mass
specific weight
specific gravity

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Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

more
less
same
more or less depending on size of glass tube

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MORE MCQ ON Hydraulics & Fluid Mechanics

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