ANSWERS
Which component of CFC refrigerant is the cause of ozone depletion? - CORRECT ANSWER✅✅Chlorine
pg1
The Stratospheric Ozone layer protects us from; - CORRECT ANSWER✅✅ultraviolet radiation pg1
The current standard for recovery only equipment is SAE; - CORRECT ANSWER✅✅J2810 pg3
When checking a cylinder of recycled HFC-134a for non-condensable gasses at 70F, the pressure should
not exceed: - CORRECT ANSWER✅✅76 psig pg10
Section 609 of the Federal Clean Air Act requires that all persons servicing motor vehicle air conditioning
must; - CORRECT ANSWER✅✅all of the above pg 1
After charging a system using manifold gauges, the refrigerant in the hoses; - CORRECT
ANSWER✅✅must be recovered pg 5
Recovery cylinders must be; - CORRECT ANSWER✅✅UL or DOT approved
After initial recovery procedures, the technician should; - CORRECT ANSWER✅✅. wait 5 minutes to
determine if the system returns to a positive pressure
Violations of Section 609 of the Clean Air Act may result in; - CORRECT ANSWER✅✅all of the above
After initial recovery procedure, if additional recovery is required, repeat the recovery process until the
A/C system vacuum remains stable for; - CORRECT ANSWER✅✅2 minutes
Before retrofitting a motor vehicle air conditioning system, make sure that the replacement refrigerant
is: - CORRECT ANSWER✅✅EPA - SNAP approved
, Before charging a system with recycled refrigerant, the refrigerant should be checked for; - CORRECT
ANSWER✅✅non consensables
Service hoses must have ________ within 12" (30cm) of the end of the hose. - CORRECT
ANSWER✅✅shut off valves
When disposing of an empty or near empty disposable cylinder, you should; - CORRECT ANSWER✅✅all
of above
Prior to introducing recovered refrigerant to a motor vehicle; - CORRECT ANSWER✅✅recycle the
refrigerant to SAE standards (J1991 or J2099)
. Refrigerant must not be vented because; - CORRECT ANSWER✅✅all of the above
Before transferring recycled refrigerant into an empty storage cylinder, the cylinder should first be; -
CORRECT ANSWER✅✅evacuated to at least 27" hg.
One kilogram is equal to; - CORRECT ANSWER✅✅2.2 pounds
Recycling equipment manufactured to SAE standards is capable of cleaning refrigerants to an acceptable
level; - CORRECT ANSWER✅✅only if it came from a motor vehicle
Recovery cylinders must not be filled above 80% of their capacity and the safe filling capacity can be
controlled by; - CORRECT ANSWER✅✅any of above
When servicing a vehicle charged with HFC-134a, you should; - CORRECT ANSWER✅✅use equipment
designed for use with HFC-134a.
Before charging a system that has been opened for service; - CORRECT ANSWER✅✅the system should
hold 27" vacuum for at least one minute before charging