Question

In a stationary fluid, how does the local pressure of the fluid vary?

(a) With depth only

(b) In the horizontal direction only

(c) Both with depth and along horizontal direction

(d) Neither with depth nor along horizontal direction

The question was posed to me by my college director while I was bunking the class.

I'd like to ask this question from Manometer in chapter Buoyancy and Floatation of Fluid Mechanics

Answer 1

Correct choice is (a) With depth only

To explain: According to Pascal’s law, the local pressure of a fluid is same in all directions. Hence, the pressure won’t vary along the x and y direction. The local pressure will increase with an increase in depth due to the extra weight of water column above that point.