Bennett Mechanical Test Fluid Mechanics and Hydraulics 5

Question 1

Liquid pressure at a given depth depends on:

Accepted Answer

The depth and the fluid's density

Answer

Pressure increases with both depth and fluid density, independent of container shape.

Question 2

A water tower is built tall mainly to:

Accepted Answer

Provide high pressure from gravity to the homes below

Answer

Height creates gravitational pressure that delivers strong water flow to lower buildings.

Question 3

In two connected containers of different shapes filled with the same liquid, the liquid level will:

Accepted Answer

Be the same height in both

Answer

In connected vessels, a static liquid settles to the same level regardless of shape.

Question 4

A dam is built much thicker at its base than at its top because:

Accepted Answer

Water pressure is greatest at the bottom

Answer

Pressure increases with depth, so the deepest part of the dam must resist the most force.

Question 5

Which factor does NOT affect the pressure at the bottom of a tank of still water?

Accepted Answer

Surface area of the bottom

Answer

Pressure equals density × gravity × depth and does not depend on bottom area.

Bennett Mechanical Test Practice Test