# Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

4.

The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

 [A]. w.A [B]. wx [C]. wAx [D]. wA/x

Answer: Option C

Explanation:

No answer description available for this question.

 Vivek Lal Tesu said: (May 1, 2015) This answer belongs to total force not total pressure. Total pressure: Force per unit area i.e. wax divided by a. Then answer should be wx.

 Arpit Shah said: (Aug 27, 2015) Answer should be wx.

 Sarmad said: (Feb 27, 2016) The total pressure on a horizontal immersed surface is wx. The total pressure on a vertical immersed surface is wAx. The total pressure on a inclined immersed surface is wAxsin(angle).

 Manoj said: (Jul 3, 2016) Total pressure on a horizontal immersed surface is wA/x. Unit of pressure will be KN/sqm.

 Muhammad Waqas said: (Feb 22, 2017) The Total pressure on an immersed surface i.e. PA which is equal to Force(This phrase means the author is talking about FORCE) so don't misunderstand it. The Total pressure on an immersed surface may be defined as the Weight of the liquid above the immersed surface. F = Specific weight of liquid * Volume of liquid. F = Specific weight of liquid * Area of surface * Depth of liquid. F = wAx (kN).

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