NS2 Test Bank: NS2-M3C19 - Buoyancy

Front

The torque produced by the product of the righting arm and the force of gravity and buoyant force acting on a vessel.

Back

Righting moment

Front

What force tends to right the ship as it rolls?

Back

Torque

Front

What happens to a balloon when it reaches an altitude where the upward buoyant force equals the downward weight?

Back

It remains suspended.

Front

Who is responsible for describing buoyant force?

Back

Archimedes

Front

The apparent weight of an object in water is its weight in air (true weight) ______ the buoyant force (weight of the displaced fluid).

Back

minus

Front

The measured weight of an object immersed in a fluid; its true weight minus the weight of the displaced fluid.

Back

Apparent weight

Front

Fillable water tanks used to provide additional weight to vessels. In submarines, a space between the inner and outer hulls filled with water when submerged and with air when surfaced.

Back

Ballast tanks

Front

The point on the hull of a ship or boat to which the water rises; a line marked on the outside of a ship that corresponds with the water's surface when the ship is afloat on an even keel under specified conditions of loading.

Back

Waterline

Front

The depth beneath the waterline to which a vessel’s hull sinks.

Back

Draft

Front

A body immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the body.

Back

Archimedes' Law