Principles of Engineering Fluid Power Practice

The upward force exerted by a fluid on a submerged object.

• gravity

• anti-gravity

• buoyant force

• lift

An upward force.

• lift

• gravity

• life

• drag

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following is a change that will not affect the pressure in a container?

• heating or cooling the fluid

• changing the material that the fluid´s container is made of

• changing the weight of the fluid

• increasing the volume of the fluid

The figure above shows water entering section 1 of a tube at a speed of 𝑣₁ = 20.0 𝑚/𝑠 through an area of cross-section 𝐴1 = 3.00 𝑚² . The water then flows through a narrower section 2 of area 1𝑚²

• 20.0 𝑚/𝑠

• 3.0 𝑚/𝑠

• 1.0 𝑚/𝑠

• 60.0 𝑚/𝑠

Tags

NGSS.MS-PS3-1

When pressure is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the fluid. This fact is called________.

• Pascal's Principle

• Newton's Principle

• Archimedes' Principle

• Bernoulli's Principle

Bernoulli’s principle states that the pressure in a fluid decreases as its velocity increases. 

• True

• False

The figure above shows water entering section 1 of a tube at a speed of 𝑣₁ = 10.0 𝑚/𝑠 through an area of cross-section 𝐴1 = 3.00 𝑚² . The water then flows through a narrower section 2 at a speed of 𝑣₂ = 20.0 𝑚/𝑠.

• 1.5m²

• 2.0m²

• 3.0m²

• 20m²

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A fluid's resistance to flow is its

• viscosity.

• density.

• pressure.

• buoyancy.

According to Pascal, pressure applied to a fluid

• increases as it moves through the fluid.

• decreases as it moves through the fluid.

• fluctuates as it is transmitted throughout the fluid.

• is transmitted unchanged throughout the fluid.

Which of the following components is essential for converting fluid power into mechanical power in a hydraulic system?

• Pump

• Reservoir

• Actuator

• Filter