
Fluid Mechanics Quiz

Quiz
•
Engineering
•
12th Grade
•
Medium
Kathryn Cadman
Used 1+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Pascal’s Principle state?
Hydraulic systems do not use pressure.
Pressure decreases with altitude.
Pressure applied to a fluid in a sealed container is transmitted equally throughout the fluid.
Dynamic pressure is the same as static pressure.
Answer explanation
Pascal’s Principle states that pressure applied to a fluid in a sealed container is transmitted equally throughout the fluid. This explains how hydraulic systems operate, making the correct choice the third option.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for dynamic pressure?
Dynamic pressure = ρV
Dynamic pressure = ½ρV²
Dynamic pressure = ρV²
Dynamic pressure = ½ρV
Answer explanation
Dynamic pressure is defined as ½ρV², where ρ is the fluid density and V is the flow velocity. This formula represents the kinetic energy per unit volume of a fluid, making it the correct choice.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a pitot tube?
To measure static pressure only.
To measure the density of the air.
To measure the temperature of the air.
To measure the speed of aircraft by measuring the flow velocity of the air past them.
Answer explanation
A pitot tube measures the speed of an aircraft by determining the flow velocity of air past it. It does this by comparing static and dynamic pressures, making it essential for speed measurement, not for static pressure, density, or temperature.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of an altimeter in an aircraft?
To measure the dynamic pressure.
To control the hydraulic systems.
To measure the speed of the aircraft.
To indicate the height of the aircraft above a pre-selected surface level.
Answer explanation
An altimeter measures the height of an aircraft above a pre-selected surface level, which is crucial for navigation and safety during flight. The other options do not accurately describe its primary function.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of an actuating cylinder in a hydraulic system?
To convert hydraulic power into electrical power.
To convert hydraulic power into mechanical power.
To measure the pressure of the hydraulic fluid.
To store hydraulic fluid.
Answer explanation
The main function of an actuating cylinder in a hydraulic system is to convert hydraulic power into mechanical power, enabling movement or force application in various mechanical systems.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to static pressure as altitude increases?
It fluctuates randomly.
It decreases.
It remains constant.
It increases.
Answer explanation
As altitude increases, the weight of the air above decreases, leading to a reduction in static pressure. Therefore, static pressure decreases with increasing altitude.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is total pressure also known as?
Dynamic pressure
Static pressure
Pitot pressure
Hydraulic pressure
Answer explanation
Total pressure is also known as Pitot pressure, as it is measured using a Pitot tube, which captures both static and dynamic pressure in fluid flow.
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