The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as_________________?

A. when its metacentric height is zero
B. when the metacentre is above the centre of gravity
C. when the metacentre is below the centre of gravity
D. only when its centre of gravity is below its centre of buoyancy

A. vertical line
B. horizontal line
C. inclined line with flow downward
D. inclined line with upward flow
E. in any direction and in any location

A. pressure in pipe, channels etc.
B. atmospheric pressure
C. very low pressures
D. difference of pressure between two points
E. flow