Question

Pressure of 200 kPa is equivalent to the head of z metre of liquid having relative density 1.59. The value of z(m) is ?

• A. 11.6
• B. 11.82
• C. 12.82
• D. 13.14

Answer 1

The correct option is C 12.82

Data given : Pressure exerted by the fluid, P = 200 kPa

Relative density of the fluid, R = 1.59

Let density of water, ${\gamma }_{\omega }=9.81kN/m^3$

Pressure equivalent to the head of fluid $=h_f=z$

$P=R{\gamma }_{\omega }{h}_f$

$z=h_f=\frac{P}{R{\gamma }_{\omega }}=\frac{200}{1.59\times 9.81}=12.82m$