5 Questions
Which unit is used to express pressure in the SI system?
Pascal (Pa)
What is gauge pressure?
Pressure relative to the ambient pressure
What is the torr?
1⁄760 of standard atmospheric pressure
Which unit is used to express pressure in the imperial and US customary systems?
Pound-force per square inch (psi)
What are manometric units used for?
Expressing pressures in terms of the height of a fluid in a manometer
Study Notes
Pressure Units
- In the SI system, pressure is expressed in pascals (Pa).
- Gauge pressure is the pressure relative to atmospheric pressure, measured in units of pascals (Pa) or pounds per square inch (psi).
- The torr is a unit of pressure, equivalent to 1/760 of a standard atmosphere, primarily used to measure pressure in vacuum systems.
Imperial and US Customary Systems
- In the imperial and US customary systems, pressure is expressed in pounds per square inch (psi).
Manometric Units
- Manometric units, such as inches of water (inH2O) or millimeters of mercury (mmHg), are used to measure pressure in industrial and technical applications, particularly in the context of fluid flow and pressure measurement.
Test your knowledge on pressure and its measurement units with this quiz. Learn about gauge pressure, the pascal as the SI unit of pressure, and other units used to express pressure.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
