Before installing a line to transport tomato concentrate between two stages of a process,

the following data was obtained from pilot plant trails in which pressure drop was

measured as a function of flow rate for different pipe diameters:

Determine the pressure drop required to transfer tomato concentrate along $25m$ of

$50mm$ diameter pipe at a rate of $3\mathrm{.}6cu.\frac{m}{h}.$

This problem involves the principles of food rheology