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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific speed
specific weight
specific gravity
specific volume

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Hydraulics & Fluid Mechanics
The density of water is 1000 kg/m3 at

20°C
0°C
4°C
0°K

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

Micro-manometer
ionisastion gauge
Pirani Gauge
Bourdon tube

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Hydraulics & Fluid Mechanics
Separation of flow occurs when

the pressure intensity reaches a minimum
the cross-section of a channel is reduced
the boundary layer comes to rest
All of these

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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

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

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Hydraulics & Fluid Mechanics
Operation of McLeod gauge used for low pressure measurement is based on the principle of

gas law
Charle’s law
Boyle’s law
Pascal’s law

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