100% ACCURATE
Manufacturers often color code the exterior of gauges, on a typical gauge manifold set
the low pressure gauge is color coded - ANSWER blue
Approved refrigerant recovery cylinders can be identified by which colors - ANSWER
gray body and yellow top
Chlorofluorocarbon (CFC) refrigerants are so named because they contain the elements
- ANSWER chlorine, fluorine, carbon
What is being done in the U.S. to stop damage to the stratosphere - ANSWER
enforcing strict emission requirements on incinerators, capturing and ultimately
eliminating use of chlorofluorocarbons, using natural gas instead of coal to generate
electricity
If a system will not hold a vacuum after it has been evacuated, then - ANSWER the
system may be leaking
Some state and local governments may establish laws that - ANSWER follow the clean
air act and EPA regulations , contain stricter regulations than the clean air act and EPA
regulations
Each chlorine atom in the stratosphere can destroy how many ozone molecules -
ANSWER 100,000
Ozone in the stratosphere above the earth consists of - ANSWER molecules containing
3 oxygen atoms
All devices used for refrigerant recovery must - ANSWER meet EPA standards
Service technicians who violate clean air act provisions - ANSWER may lose their
certification, may be required to appear in Federal Court, may be fined
Which refrigerants must be recovered before opening or disposing of appliances -
ANSWER R-12, R-500, R-22
The state of the refrigerant leaving the condenser of a system is - ANSWER high
pressure liquid
Which of the following is an approved "drop in" replacement for R-12 - ANSWER none
of the above