Hydraulics & Fluid Mechanics
Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(i) and (iii)
(ii) and (iii)
(i) and (ii)
(i), (ii) and (iii)

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Hydraulics & Fluid Mechanics
Select the correct statement

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

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Hydraulics & Fluid Mechanics
The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is

zero at the mid plane and varies linearly with distance from mid plane
constant over the cross section
zero at plates and increases linearly to midpoint
parabolic distribution across the section

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