Fluid Mechanics

It is the law of motion that best describes the two branches of fluid mechanics, mathematically.

•    First Law of Motion

• Second Law of Motion

• Third Law of Motion

•   Universal Law of Gravitation

Stress is described by the two factors such as_____.

• Force and Area

•    Magnitude and Direction

• Surface Element and Pressure

• Tangential and Normal Stresses

Given that the specific gravity is greater than 1, the object will____.

• Float

• Sink

• Hover

• None of the choices

An object's density is a measure of how compact or heavy it is, in a given volume. Hence, if the object weighs 2kg with a volume of 1m³, the object will sink.

• True

• False

If you are to measure the pressure applied to you while sitting, you will measure____.

• Gauge Pressure

• Atmospheric Pressure

• Total Pressure

• Absolute Pressure

Which of the following is correct?

• Pressure is inversely proportional with depth.

• Atmospheric pressure is pressure due to columns of water

• Absolute pressure is the additional pressure applied in an object.

• Gauge pressure is the pressure due to fluid.

An increase in the density of fluid will not affect the pressure in the fluid.

• True

• False

How will you decrease the density of the object for it to float in water?

• Increase the mass of the object

• Decrease the volume of the object

• Decrease the mass and volume of the object

• Decrease the mass and increase the volume of the object

This principle says that an increase in pressure on a confined fluid is transmitted equally to all parts of the fluid.

• Newton's Principle

• Bernoulli's Principle

• Archimedes' Principle

• Pascal's Principle

What is described as the force exerted over a given area?

• Area

• Space

• Pressure

• Fluidity