Vacuum Pump Quiz

Who invented the first vacuum pump?

• Evangelista Torricelli

• Otto von Guericke

• Robert Boyle

• Galileo Galilei

What is the principle behind a positive displacement pump?

• Using strong electrical fields to ionize gases

• Using high-speed jets of dense fluid

• Capturing gases in a solid or adsorbed state

• Repeatedly expanding a cavity to allow gases to flow in

Which type of pump is most effective for low vacuums?

• Cryopump

• Positive displacement pump

• Momentum transfer pump

• Entrapment pump

What is the main function of a momentum transfer pump?

• To capture gases in a solid state

• To use high-speed rotating blades to knock gas molecules out

• To repeatedly expand a cavity

• To use cold temperatures to condense gases

Which pump uses cold temperatures to condense gases to a solid or adsorbed state?

• Rotary vane pump

• Cryopump

• Diffusion pump

• Turbomolecular pump

What is the typical base pressure of a rubber- and plastic-sealed piston pump system?

• 0.1 Pa

• 1 to 50 kPa

• 100 Pa

• 10 Pa

Which pump is known for having the highest pumping speeds but low compression ratio?

• Diaphragm pump

• Piston pump

• Scroll pump

• Lobe Pump AKA Roots blower

What is the main application of vacuum pumps in the field of oil regeneration?

• Creating a vacuum for uranium enrichment

• Producing a vacuum for electron microscopy

• Powering gyroscopes in flight instruments

• Creating a low vacuum for oil dehydration

Which scientist improved Otto von Guericke's vacuum pump design and conducted experiments on the properties of vacuum?

• Heinrich Geissler

• Galileo Galilei

• Robert Boyle

• Francis Hauksbee

What is the main hazard associated with old vacuum-pump oils produced before circa 1980?

• High evaporation rate

• High reactivity with metals

• High toxicity and carcinogenic properties

• High flammability