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# GATE 2023 II Hydrostatic Forces II Quiz 3

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Question 1

The centre of pressure of any submerged plane vertical surface is _______

Question 2

A cylindrical container contains milk upto a height H and pressure at lowest point is P. If the diameter of the cylinder is reduced by 50 % with milk remaining at same height H , the pressure at lowest point will be ______.

Question 3

The top surface of a vertical rectangular gate, with 16 m width and 12 m height, and the upper surface of height coincides with the free water surface. The depth of the centre of pressure is

Question 4

The arch of a bridge over a river in the form of semi circle of radius 4 m .The bridge width is 10 m .Due to a flood the water level raises 2 m above the crest of the arch. The horizontal thrust (in MN) on the half of the arch is  ___

Question 5

Rectangular plate 0.75 m × 2.4 m is immersed in a liquid of relative density 0.85 with its 0.75 m side horizontal and just at the water surface. If the plane of plate makes an angle of 600 with the horizontal, pressure force (in kN) on one side of the plate is ____.

Question 6

A circular plate of diameter 1.5 m which is placed vertically in water in such a way that the centre of the plate is 3 m below the free surface of water.The position (in mm) of centre of pressure from the free surface is _____.

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