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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The units of viscosity are

newton-sec/metre2
kg sec/metre
metre2/se
newton-sec/metre

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

Pirani Gauge
Micro-manometer
ionisastion gauge
Bourdon tube

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Hydraulics & Fluid Mechanics
Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(i), (ii) and (iii)
(ii) and (iii)
(i) and (ii)
(i) and (iii)

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

specific mass
specific gravity
specific weight
specific density

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Hydraulics & Fluid Mechanics
The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid (where pi and p2 are mass densities.)

steady flow
incompressible flow
uniform flow
frictionless flow

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

independent of shear stress
None of these
maximum at the pipe wall
zero at the pipe wall

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