EPA 608 Core Study Guide questions and
answers 2024\2025 A+ Grade
A "compound gauge":
- correct answer Can only be used for low pressures - Has different unit scales
According to EPA regulations, when system flushing is required following a compressor burnout, the
following refrigerant must be used:
- correct answer System flushing with refrigerants is illegal
A CFC contains:
- correct answer Chlorine, fluorine, carbon
A CFC - 11 cylinder is:
- correct answer Orange
An HFC-134a cylinder is:
- correct answer Sky blue or pale blue
A chlorine atom will combine with an ozone molecule to form:
- correct answer Chlorine Monoxide
An HCFC contains:
- correct answer Hydrogen, chlorine, fluorine, carbon
An HFC contains the following chemicals:
- correct answer Hydrogen, fluorine, carbon
,Alkylbenzene lubricants are associated with:
- correct answer Ternary blends
All appliances currently manufactured or imported into the United States must be equipped with:
- correct answer A service aperture or device to enable the removal of refrigerant
A recovery cylinder is:
- correct answer Gray with yellow top
A refillable cylinder may be filled to a maximum of:
- correct answer 80% of its liquid weight
A refrigerant heated above its boiling point is:
- correct answer Superheated
A refrigeration system should not be recovered unless a gauge indicates a minimum pressure of
_________ Psig within the system.
- correct answer 15 Psig
Any vapor refrigerant vented from the top of a graduated charging cylinder while filling the charging
cylinder with liquid:
- correct answer Must be recovered
As of January 1st, 1996:
- correct answer It is illegal to import or manufacture CFCs in the United States
As of November 15, 1993, all recovery equipment must:
- correct answer Be fitted with low loss fittings - Be certified by an EPA approved agency
As of November 15, 1993, recovery machines:
- correct answer Must be certified to meet EPA standards
, A system may be said to be properly dehydrated when:
- correct answer The vacuum indicator has reached and held the required vacuum for a period of time
A technician who violates provisions of the CAA:
- correct answer May be fined - May lose certification - May be required to appear in court
Refrigerant cylinders should be transported in a ______________ position:
- correct answer Vertical
An award of __________________ may be paid to a person providing information which leads
to a penalty against a technician for violating CAA regulations.
- correct answer $10,000
Before using an empty recovery cylinder, you should:
- correct answer Evacuate the cylinder
Before using a recovery unit, you should:
- correct answer Check service valves positions - Check oil level Evacuate
Blended refrigerants leak from a system:
- correct answer In uneven amounts due to different vapor pressures
CAA is the acronym for:
- correct answer Clean Air Act
Can ester based oils be mixed with other oils?
- correct answer No
Can mixed refrigerants be reclaimed?
- correct answer No
Can state or local laws governing refrigerant be less strict than federal laws?
- correct answer No
answers 2024\2025 A+ Grade
A "compound gauge":
- correct answer Can only be used for low pressures - Has different unit scales
According to EPA regulations, when system flushing is required following a compressor burnout, the
following refrigerant must be used:
- correct answer System flushing with refrigerants is illegal
A CFC contains:
- correct answer Chlorine, fluorine, carbon
A CFC - 11 cylinder is:
- correct answer Orange
An HFC-134a cylinder is:
- correct answer Sky blue or pale blue
A chlorine atom will combine with an ozone molecule to form:
- correct answer Chlorine Monoxide
An HCFC contains:
- correct answer Hydrogen, chlorine, fluorine, carbon
An HFC contains the following chemicals:
- correct answer Hydrogen, fluorine, carbon
,Alkylbenzene lubricants are associated with:
- correct answer Ternary blends
All appliances currently manufactured or imported into the United States must be equipped with:
- correct answer A service aperture or device to enable the removal of refrigerant
A recovery cylinder is:
- correct answer Gray with yellow top
A refillable cylinder may be filled to a maximum of:
- correct answer 80% of its liquid weight
A refrigerant heated above its boiling point is:
- correct answer Superheated
A refrigeration system should not be recovered unless a gauge indicates a minimum pressure of
_________ Psig within the system.
- correct answer 15 Psig
Any vapor refrigerant vented from the top of a graduated charging cylinder while filling the charging
cylinder with liquid:
- correct answer Must be recovered
As of January 1st, 1996:
- correct answer It is illegal to import or manufacture CFCs in the United States
As of November 15, 1993, all recovery equipment must:
- correct answer Be fitted with low loss fittings - Be certified by an EPA approved agency
As of November 15, 1993, recovery machines:
- correct answer Must be certified to meet EPA standards
, A system may be said to be properly dehydrated when:
- correct answer The vacuum indicator has reached and held the required vacuum for a period of time
A technician who violates provisions of the CAA:
- correct answer May be fined - May lose certification - May be required to appear in court
Refrigerant cylinders should be transported in a ______________ position:
- correct answer Vertical
An award of __________________ may be paid to a person providing information which leads
to a penalty against a technician for violating CAA regulations.
- correct answer $10,000
Before using an empty recovery cylinder, you should:
- correct answer Evacuate the cylinder
Before using a recovery unit, you should:
- correct answer Check service valves positions - Check oil level Evacuate
Blended refrigerants leak from a system:
- correct answer In uneven amounts due to different vapor pressures
CAA is the acronym for:
- correct answer Clean Air Act
Can ester based oils be mixed with other oils?
- correct answer No
Can mixed refrigerants be reclaimed?
- correct answer No
Can state or local laws governing refrigerant be less strict than federal laws?
- correct answer No
