Hydraulics & Fluid Mechanics
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if

the area is horizontal
All of these
the area is inclined
the area is vertical

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Hydraulics & Fluid Mechanics
Choose the wrong statement

fluids are capable of flowing
when in equilibrium, fluids can sustain shear forces
fluids conform to the shape of the con-taining vessels
when in equilibrium, fluids cannot sustain tangential forces

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

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

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

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