In what year did it become unlawful to knowingly vent CFCs and HCFCs?
A. 1987
B. 1992
C. 1994
D. 1996
Answer: B
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When rays interact with other compounds, they split atomic nuclei in a process called ____
A) compression B) fusion C) fission D) none of these
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Which pillar is nearest the front of the vehicle?
A) A B) B C) C D) D
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The halogen family of chemicals includes:
A) Chlorine, fluorine, and bromine. B) All the chemical elements found in refrigerants are halogens. C) Carbon and hydrogen. D) Oxygen, carbon, and hydrogen.
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The safety valve discharges automatically at the pressure of:
a. 100 psi b. 50 psi c. 150 psi
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