Hydraulics & Fluid Mechanics
According to Bernoulli’s equation for steady ideal fluid flow

velocity and pressure are inversely proportional
principle of conservation of mass holds
the energy is constant along a stream-line but may vary across streamlines
total energy is constant throughout

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Hydraulics & Fluid Mechanics
The normal stress is same in all directions at a point in a fluid

irrespective of the motion of one fluid layer relative to an adjacent layer
When there is no motion of one fluid layer relative to an adjacent layer
only when the fluid is frictionless
only when the fluid is incompressible and has zero viscosity

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Hydraulics & Fluid Mechanics
Select the correct statement

Local atmospheric pressure depends upon elevation of locality only
Local atmospheric pressure is always below standard atmospheric pressure
Standard atmospheric pressure is the mean local atmospheric pressure a* sea level
A barometer reads the difference be-tween local and standard atmospheric pressure

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