Practice : Vacuum Technology

No. of Questions= 6 You can press the Mark it button at the bottom of the page to have the practice marked. Once the practice quiz has been marked, you can select other responses and see how the outcome would have been different.

1.	Pressure is created when:
	a)	molecules of a gas are removed from a container
	b)	molecules of a gas collide with the wall of the container
	c)	there is no gas in a container
	d)	None of the above
2.	A deep-sea diver would experience:
	a)	Lesser and lesser pressure as she dives deeper
	b)	Greater pressure as she dives deeper
	c)	No pressure change as she dives deeper
	d)	None of the above
3.	Pressure can be measured using a:
	a)	Thermometer
	b)	Ohmmeter
	c)	Manometer
	d)	Seismometer
4.	The pressure at sea level at standard temperature is one (which unit?):
	a)	Atm
	b)	Bar
	c)	Torr
	d)	Pa
5.	Which of the following situation(s) involve a vacuum as opposed to low pressure?
	a)	At high altitude where fighter pilots must wear oxygen masks
	b)	Outside a space shuttle in outer space
	c)	Inside the plastic bag in the syringe experiment.
6.	A pump that accelerates the molecules of gas therefore creating a region of lower pressure is a:
	a)	Trapping pump
	b)	Pressure pump
	c)	Transfer pump
	d)	Sump pump

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