Hydraulics and Fluid Mechanics in ME
The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy’s coefficient of friction for pipe, and l = Length of pipe)

d = (D⁵/8fl)1/3
d = (D⁵/8fl)1/5
d = (D⁵/8fl)1/2
d = (D⁵/8fl)1/4

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
Cavitation will begin when

the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
pressure is increased
pressure becomes more than critical pressure
flow is increased

ANSWER DOWNLOAD EXAMIANS APP