Hydraulics & Fluid Mechanics
Select the correct statement

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

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Hydraulics & Fluid Mechanics
The horizontal component of force on a curved surface is equal to the

force on the horizontal projection of the curved surface
weight of liquid vertically above the curved surface
product of pressure intensity at its centroid and area
force on a vertical projection of the curved surface

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