FLUID MECHANICS

The ratio of force, acting perpendicular to the area, on which it acts known as…

• Friction

• Pressure

• Force

• Density

Which term defined as the sum of forces due to fluid pressure.

• Buoyant force

• net force

• Resultant force

• Pressure

Which fluid principle states that, a change in pressure at any point in a confined fluid is transmitted in all directions throughout the fluid?

• Archimedes’

• Bernoulli’s

• Buoyant

• Pascal’s

Which fluid mechanics principle states that, a fluid exerts an upward buoyant force on a immersed object the same in magnitude to the weight of the volume of fluid displaced by the object?

• Archimedes’

• Bernoulli’s

• Buoyancy

• Pascal’s

Which location should the water tank be constructed in order to supply household consumers?

• At the ground level

• below the ground level

• highly elevated from the ground

• all are correct

The vessels shown below all contain water to the same height. Rank them according to the pressure exerted by the water on the vessel bottoms, least to greatest.

• 3, 4, 2, 1

• 4, 3, 2, 1

• 2, 3, 4, 1

• All pressures are the same

A loaded ship passes from a lake (fresh water) to the ocean (saltwater). Saltwater is more dense than fresh water and as a result the ship will:

• ride higher in the water

• settle lower in the water

• ride at the same level in the water

• experience an increase in buoyant force

How does airplane fly based on Bernoulli’s principle?

• Airplanes have jet blasters beneath the wing.

• Gravity creates an equal and opposite reaction because it is not strong

• High pressure presses up against the low pressure on the bottom of the wing

• High pressure presses up against the low pressure on the top of the wing.

Bernoulli’s principle is widely used in our daily life. Among the choices, below what is NOT an example of Bernoulli’s principle?

• Aircraft

• Baseball

• Hydraulic Jack

• Sailing

Which fluid mechanics principle explained in terms of the law of conservation of energy?

• Archimedes’

• Bernoulli’s

• Pascal’s

• Poiseuille’s