Hydraulics and Fluid Mechanics in ME
When an ideal fluid flows past a sphere

lowest pressure intensity occurs at rear stagnation point
lowest pressure intensity occurs at front stagnation point
highest intensity of pressure occurs around the circumference at right angles to flow
total drag is zero

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Hydraulics and Fluid Mechanics in ME
Cavitation will begin when

pressure becomes more than critical pressure
flow is increased
the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
pressure is increased

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Hydraulics and Fluid Mechanics in ME
Which of the following is an incorrect statement ?

None of these
Flow nozzle is cheaper than venturimeter but has higher energy loss
Coefficient of contraction of a venturimeter is unity
Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined

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