$2$

With reference to FIGURE $1,$ determine the pressure on the tank base with :

$($a$)$ the standpipe empty of liquid

$($b$)$ the standpipe full.

Assume that the filling liquid is water of density $1000kg{m}^{-3}.$

FIG. $1$

A single column gauge has a limb diameter of $10mm$ and a well diameter of $120mm.$ Determine the scale multiplication factor of the gauge and explain why this term is used. Derive any formula used.