Understanding Submarines

What mechanism allows a submarine to sink and rise in the water?

• Periscopes

• Propellers

• Ballasts

• Sonar

Why is the outer shell of a submarine crucial for its operation?

• It houses the crew.

• It helps in navigation.

• It provides buoyancy.

• It withstands underwater pressure.

Which inventor is credited with building the first submarine?

• David Bushnell

• Robert Fulton

• Cornelius Drebbel

• Isaac Peral

What technology do submarines use to navigate underwater?

• Lidar

• GPS

• Sonar

• Radar

What is a primary use of scientific submarines?

• Military patrols

• Studying ocean depths

• Fishing

• Transporting goods