Question

A tank with a float bottom is filled with water to a height of 4 meters. What’s the pressure at any point at the bottom of the tank?

A. 9.8 kPa
B. 18.9 kPa
C. 39.2 kPa
D. 4.0 kPa

Answer 1

The tank containing water filled to a height of 4 meters, the pressure at any point on bottom of tank is 39.2 kPa

Answer: Option C

Solution:

`\begin{aligned} \text {Pressure}=& \text {Density of water} * \text {Acceleration due to gravity} \\ & * \text {Height to which water is filled in tank} \end{aligned}`

Density of water is 1000
`\mathrm{kg} / m^(3)`

Acceleration due to gravity is 9.8 m/s

The water is filled to a height of 4 meters in the tank

`\text { Pressure }=4 * 1000 * 9.8=4000 * 9.8=39200`

Pressure at any point at the bottom of tank = 39200 Pascal or 39.2 kPa