Core Refrigerants
100

The use and release of CFCs and HCFCs has a harmful effect on ________.

the stratosphere

200

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

Depletion of Stratospheric ozone

300

Chlorine in CFC's and HCFC's is harmful to hour ozone because it will not ______ in water. 

dissolve 

400

How do HVAC technicians identify a refrigerant cylinder that is designed for refrigerant recovery? 

grey body and yellow top.

500

Which of the following refrigerants has a GWP of "1"? R-22 , R-134a , R-410A , R-1233zd 


R-1233zd

M
e
n
u