Question

Why the walls of a dam are broader at the base and narrow at the top

Answer 1

Dams are made broader at the base than at the top to withstand the pressure of the water behind it. As the pressure is greatest at the bottom, the dam must be made thickest at its base.

Answer 2

Dams are made broader at the base than at the top to withstand the pressure of the water behind it. As the pressure is greatest at the bottom, the dam must be made thickest at its base.

Answer 3

Dams are made broader at the base than at the top to withstand the pressure of the water behind it. As the pressure is greatest at the bottom, the dam must be made thickest at its base.

Answer 4

Dams are made broader at the base than at the top to withstand the pressure of the water behind it. As the pressure is greatest at the bottom, the dam must be made thickest at its base.