WITH CORRECT VERIFIED ANSWERS.
ACCURATE 2025 UPDATE.
A refillable refrigerant cylinder must not be filled above of its full capacity. - ANSWER-
80%
Ozone layer absorbs and scatters from the sun - ANSWER-Ultraviolet light
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. - ANSWER-$10,000
Since , it is no longer legal for CFCs to be manufactured or imported into the United
States - ANSWER-Jan 1, 1996
R-134a is a chlorine-free refrigerant - ANSWER-True
MVAC systems being disposed must be evacuated to of mercury before being scrapped -
ANSWER-4 inches
Ozone at ground level and at Stratosphere is a harmful pollutant - ANSWER-False
Each chlorine ion can able to destroy ozone molecules - ANSWER-100,000
Since , it is illegal to vent substitutes for CFC and HCFC refrigerants - ANSWER- Nov
15, 1995
For determining the Ozone Depletion Potential having been assigned a factor of 1 -
ANSWER-CFC-11
Ester-based synthetic oils can be mixed with other oils - ANSWER-False
Lifetime of CFCs is believed to range from years - ANSWER-20-100
CFCs are highly reactive in of atmosphere - ANSWER-lower levels
At high temperaturesCFC-12 can decompose to form - ANSWER- hydrofluoric acid and/or
, hydrochloric acid
The Clean Air Act (CAA) of directs EPA to establish requirements to prevent the release
of ozone depleting substances. - ANSWER-1990
Non-condensable in a refrigeration system result in a discharge pressure - ANSWER-Higher
Moisture level in Recycled R-12 (CFC-12) that has been directly removed from, and intended to be
returned to, a mobile air- conditioning system cannot exceed PPM by weight. -
ANSWER-15
Refrigerants are lighter than the air: - ANSWER-False
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses,
also requires Section certification - ANSWER-608
If a technician is already trained and certified to handle CFC-12, he has to be
re-certified to handle HFC-134a - ANSWER-
False
Every refrigerant cylinder need not be protected by some type of pressure relief device: -
ANSWER-False
Ozone depletion Increase global warming - ANSWER-True
Stratosphere layer consists of about of the available Ozone: - ANSWER-90%
Ozone molecule consists of atoms of oxygen - ANSWER-Three
The thermodynamic properties of HFC- 134a are similar to CFC-12 - ANSWER-True
Montreal Protocol is signed in by 23 counties including USA - ANSWER-Sep, 1987
Halons were completely phased out by 1994 - ANSWER-True
As per the CAA, all records related to entities of MVAC system services must be maintained for
years - ANSWER- Three