Fluid Mechanics Quiz

Which of the following is related to the point of pressure?

• First moment of Area

• Volume of a cube

• Speed of light

• Temperature

What is another name for the second moment of area?

• Area moment of inertia

• Mass

• Density

• Length

Which theorem is associated with the second moment of area?

• Parallel Axis theorem

• Pythagorean theorem

• Archimedes' principle

• Newton's law

If you have a plate that is rectangular and placed underwater, what is it called?

• Submerged Rectangular plate

• Floating circular plate

• Rotating square plate

• Flying triangular plate

What is the shape of the plate discussed in the lesson?

• Rectangular

• Circular

• Triangular

• Square

Which of the following is NOT a term shown in the diagram for the submerged plate?

• s

• b

• yp

• x

Which formula represents the magnitude of the force on a submerged horizontal rectangular plate?

• FR = (P0 + ρgh)ab

• FR = (P0 - ρgh)ab

• FR = (P0 + ρgh)/ab

• FR = (P0 × ρgh)ab

If you want to find the force on a submerged plate, which variables do you need from the formula FR = (P0 + ρgh)ab?

• Pressure, density, height, length, width

• Temperature, mass, speed, time, color

• Volume, area, weight, distance, energy

• Force, acceleration, velocity, time, mass

What is the height of the car door mentioned in the problem?

• 1.2 m

• 2 m

• 0.8 m

• 1 m

If a car lands at the bottom of a lake, what is one thing you might need to determine about the car door?

• The hydrostatic force on the door

• The color of the car

• The speed of the car

• The number of wheels on the car