Hydraulics and Fluid Mechanics in ME
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

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

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Hydraulics and Fluid Mechanics in ME
The purpose of a surge tank is

To eliminate water hammer possibilities
To control the pressure variations due to rapid changes in the pipe line flow
All of these
To regulate flow of water to turbines by providing necessary retarding head of water

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Hydraulics and Fluid Mechanics in ME
A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, theni) the ball will move to the frontii) the bubble will move to the frontiii) the ball will move to the reariv) the bubble will move to the rear Find out which of the above statements are correct ?

(ii) and (iii)
(iii) and (iv)
(i) and (ii)
(i) and (iv)

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