For the following questions answer them individually
The losses due to sudden contraction are expressed by
A] $$\frac{V_1^2 - V_2^2}{2g}$$Â B] $$\frac{V_2^2 - V_1^2}{2g}$$Â C] $$\frac{(V_1 - V_2)^2}{g}$$Â Â D] $$\frac{(V_1 - V_2)^2}{2g}$$
The rise of liquid along the walls of a revolving cylinder as compared to depression at the center with respect to initial level is
The most economical section of a rectangular channel for maximum discharge is obtained when its depth is equal to
In case of a two dimensional flow the components of velocity are given by $$ u = ax; v = by, $$ the point where no motion occurs, is known as
The head loss in case of hot water flow through a pipe compared to cold water flow will be
