Explanation

• Earthquakes generate dynamic/inertial forces in a dam.
• These forces can significantly increase the shear stress within the dam.
• Earthquake loading is therefore considered in the seismic design of dams.

Explanation

• Hydrostatic pressure is the pressure exerted by a fluid when it is at rest.
• It increases with the depth of water.
• The basic formula is: P = ρgh
• Here, ρ = density of water, g = acceleration due to gravity, and h = depth.
• It is important in the design of dams, tanks, reservoirs, and retaining structures.

Explanation

A fluid flow in which the velocity vector has the same magnitude and direction at every point at any given instant is known as a uniform flow.

Explanation

• Marconi invented Radio.
• Radio was invented in 1895.
• Guglielmo Marconi was an Italian inventor.

Last verified on 12-08-2026

Explanation

• The pitch of a sound wave depends on its frequency.
• Pitch tells us whether a sound is high or low.
• Higher frequency → higher pitch (e.g., whistle).
• Lower frequency → lower pitch (e.g., bass drum).
• Frequency is measured in Hertz (Hz).

Last verified on 11-08-2026