CFC Certification Practice Test | Questions with 100% Correct Answers | Verified

Manufacturers often color code the exterior of gauges, on a typical gauge manifold set the low pressure gauge is color coded - blue Approved refrigerant recovery cylinders can be identified by which colors - gray body and yellow top Chlorofluorocarbon (CFC) refrigerants are so named because they contain the elements - chlorine, fluorine, carbon What is being done in the U.S. to stop damage to the stratosphere - 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 - the system may be leaking Some state and local governments may establish laws that - 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 - 100,000