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Hydraulics & Fluid Mechanics

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

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

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

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

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Hydraulics & Fluid Mechanics
Flow of water in a pipe about 3 meters in diameter can be measured by

rotameter
venturi
orifice plate
pitot tube

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Hydraulics & Fluid Mechanics
For a floating body to be in stable equilibrium, its metacentre should be

below the center of buoyancy
between e.g. and center of pressure
above the center of buoyancy
above the center of gravity.

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

(ii) and (iii)
(i)and(iv)
(ii) and (iv)
(i) and (ii)

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