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

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

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Hydraulics & Fluid Mechanics
Choose the wrong statement

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

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

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

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