2018 Core Practice Exam (9th Edition Manual)

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A single chlorine atom can destroy how many ozone molecules?

100000

Which of the following has the highest Ozone Depletion Potential?

CFCs

Will not damage stratospheric ozone, but have a high GWP.

HCFs

Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants?

HFOs

The low-side test-pressure data-plate value should be used by a technician to determine a safe pressure for:

Leak testing

The chlorine in CFCs and HCFCs;

will not dissolve in water

The molecule found in CFCs and HCFCs that depleted ozone is: blank

Chlorine

Crop loss, eye disease, and skin cancer have been attributed to:

Depletion of Stratospheric ozone

The layer of the Stratosphere that protects us from excessive Ultra Violet radiation is comprised of;

Ozone

Which of the following refrigerant has a GWP of "1"?

R-1234zd

Which of the following refrigerants is an HFO?

R-1234ze


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