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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

rotameter
pitot tube
Venturimeter
Orifice plate

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

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

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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
Operation of McLeod gauge used for low pressure measurement is based on the principle of

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

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Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NETON/M
NEW TONS/M
NEWTONS/M
NEWTONS

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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

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

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