Solutions
MVAC systems being disposed must be evacuated to _____ of mercury before
being scrapped Right Ans - 4 inches
R-134a is a chlorine-free refrigerant Right Ans - True
Ozone Layer absorbs and scatters____ light from the sun Right Ans -
Ultraviolet light
Each chlorine ion is able to destroy ______ ozone molecules Right Ans - 100
thousand
Ozone Depletion Potential ofb________ having been assigned a factor of 1
Right Ans - CFC-11
Ozone at ground levelof the Stratosphere is a harmful pollutant. T or F?
Right Ans - True
A refillable refrigerant cylinder must not be filled above ______ of its full
capacity. Right Ans - 80%
Lifetime of CFCs is believed to range from _____ years Right Ans - 20 to 100
yrs
Ester-based synthetic oils can be mixed with other oils. T or F? Right Ans -
False
Since ________, it is no longer legal for CFCs to be manufactured or imported
into the United States Right Ans - January 1st, 1996
An award of up to ______ may be paid to a person supplying information that
leads to a penalty against a technician who is intentionally venting. Right
Ans - $10,000
If a technician is already trained and certified to handle CFC-12, he has to be
re-certified to handle HFC-134a ? Right Ans - False