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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

surface tension
osmosis
viscosity
co-efficient of viscosity

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

pitot tube
venturi
rotameter
orifice plate

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Hydraulics & Fluid Mechanics
Ay between two stream lines represents

velocity
discharge
head
pressure

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Hydraulics & Fluid Mechanics
Two pipe systems are said to be equivalent when

length and diameter are same in two systems
length of pipe and discharge are same in two systems
head loss and discharge are same in two systems
friction factor and length are same in two systems

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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.)

uniform flow
steady flow
incompressible flow
frictionless flow

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Hydraulics & Fluid Mechanics
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

more than the weight of the body
the weight of the body
less than the weight of the body
weight of the fluid displaced by the body

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