Vacuums and Pumps

This quiz was created for the University of Houston Advanced Physics Laboratory Seminar Class of 2007. This will be used as a homework grade after the student presentation on vacuum pumps and cryogenics.

The quiz consists of 20 questions and 1 bonus all worth 5 points. All questions are either multiple choice or true/false. Each question is designed to test your attention to details and deductive reasoning skills.

1. What is your age?
Under 18 Years Old
18 to 24 Years Old
25 to 30 Years Old
31 to 40 Years Old
41 to 50 Years Old
51 to 60 Years Old
Over 60 Years Old
2. What is your gender?
Male
Female
3. How much matter is present in a vacuum?
As much as will fit
200kg of matter
none
as much as you can see
4. What are the two reference points in measuring a vacuum
1 atm and 760 torr
local atmospheric pressure and perfect vacuum
pressure at 0K and pressure at 100K
when the suction is too great to break and when the temp of the vaccum is too hot to handle
5. What quality of vaccum is between about 1.33E-4kPa and about 1.33E-10kPa
Low Vacuum
Atmospheric Vacuum
Perfect vacuum
High Vacuum
Medium Vacuum
6. What pump works similar to a human lung?
Positive Displacement Pump
Momentum Pump
Entrapment Pump
Ion Pump
7. What type of pump uses the fluctuation of area to create a vacuum?
Ion Pump
Turbomolecular Pump
Cryopump
Rotary Pump
8. What type of pump is used to decrease viscous flow during molecular transfer.
Turbomolecular Pump
Ion Pump
Superconducting Pump
Low Pressure Pump
9. What role did Regina and Gizela play in the skit?
The turbine
The Pump
The molecules
Pressure
10. What type of pump does not exhaust materials?
Turbo Pump
Entrapment Pumps
Semimolecular Pump
Rotary Pump
11. What pump involves an anode and a cathode?
Turbomolecular Pump
Rotary Pump
All vacuum pumps
Ion Pump
12. What pump usually contains a material such as activated charcoal?
Cryopumps with sorbents
Turbomolecular Pumps with Turbines
Rotary Pumps with Vanes
Ion Pumps with Cathodes
13. 215K is a cryogenic temperature.
True
False
Maybe
14. Which element is commonly used as a cryogen?
Titanium
Aluminum
Helium
Mercury
Radon
15. The desired crygenic temperature is dependent on
the operating temperature of the cryogen
the freezing point of the cyostat
the structure of the molecule
the lighting in the laboratory
16. Hydrogen is used to acheive 77K
True
False
Not enough info
17. Helium is found in abundance in the Earth's atmosphere.
True
False
Maybe
18. Helium II is a mixture of
He-3 and He-4
He-3 and He-1
He-4 and H
He-3 and H20
19. Helium 3 is found in old nuclear warheads
True
False
20. Entropy of He-3 in the pure phase is higher than it is in the dilute phase mixed with He-4.
True
False
21. A closed cycle cryostat uses...to cool. *****Bonus*******
Helium
Nitrogen
Oxygen
Nothing

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