6. the correct answer. The force per unit area is called ......... (Strain, pressure, surface tension, none of all). The pressure....... as the depth of the liquid increase. (increase, decrease, remain unchanged, constant) 7. The height of the free surface above any point is known as ........ (static head, intensity of pressure, free water surface, length of body) Piezometers measure .......pressure only. (absolute saiso, atmospheric, no pressure ) Q2/ pressurized water fills the tank as shown in figure (1). Compute the net hydrostatic force on the conical surface ABC. 8. Q3/ Determine the net force and its point of application on the shown gate in fig. (2). The gate is a circular gate with diameter = 4m. 12m A 2 R Water Figure (1) Im Sisokpa 1 Iwater 12.5 Water Figure (2)