fluids

What is considered a fluid?

• Only liquids

• Only gases

• Both liquids and gases

• Solid metals only

How is density defined?

• Volume multiplied by area

• Volume divided by mass

• Mass divided by volume

• Mass multiplied by volume

What unit is pressure measured in?

• Newtons per meter squared

• Both B and C are correct

• Kilograms per meter squared

• Pascals

What happens to the pressure at greater depths in a fluid?

• It increases

• It fluctuates

• It remains constant

• It decreases

According to Pascal's Principle, what happens when pressure is applied to a confined fluid?

• The pressure increases by the same amount throughout

• The fluid becomes less dense

• The pressure remains the same

• The pressure decreases

How does a hydraulic system use Pascal's Principle?

• By decreasing pressure

• By changing the fluid's density

• By transferring pressure unchanged through the fluid

• By converting pressure into thermal energy

What is the relationship between the force applied to a fluid in a hydraulic system and the force exerted by the fluid?

• No relationship

• Inversely proportional

• Directly proportional

• Exponential

What is the significance of the area of pistons in a hydraulic system?

• Smaller area pistons increase pressure

• Smaller area pistons apply more force

• Larger area pistons decrease pressure

• Larger area pistons apply more force

What does a manometer measure?

• Volume of a fluid

• Density of a fluid

• Pressure of a fluid

• Temperature of a fluid

How can the absolute pressure of a tire be calculated using a manometer?

• Atmospheric pressure plus gauge pressure

• Gauge pressure divided by atmospheric pressure

• Gauge pressure minus atmospheric pressure

• Atmospheric pressure minus gauge pressure