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EPA 608 CORE STUDY GUIDE QUIZ QUESTIONS AND ANSWERS
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EPA 608 CORE STUDY GUIDE QUIZ QUESTIONS AND ANSWERS
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EPA 608 CORE STUDY GUIDE QUIZQUESTIONS AND ANSWERS
A "compound gauge": - 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: - Answer-System flushing with
refrigerants is illegal
A CFC contains: - Answer-Chlorine, fluorine, carbon
A CFC - 11 cylinder is: - Answer-Orange
An HFC-134a cylinder is: - Answer-Sky blue or pale blue
A chlorine atom will combine with an ozone molecule to form: - Answer-Chlorine
Monoxide
An HCFC contains: - Answer-Hydrogen, chlorine, fluorine, carbon
An HFC contains the following chemicals: - Answer-Hydrogen, fluorine, carbon
Alkylbenzene lubricants are associated with: - Answer-Ternary blends
All appliances currently manufactured or imported into the United States must be
equipped with: - Answer-A service aperture or device to enable the removal of
refrigerant
A recovery cylinder is: - Answer-Gray with yellow top
A refillable cylinder may be filled to a maximum of: - Answer-80% of its liquid weight
A refrigerant heated above its boiling point is: - Answer-Superheated
A refrigeration system should not be recovered unless a gauge indicates a minimum
pressure of _________ Psig within the system. - Answer-15 Psig
Any vapor refrigerant vented from the top of a graduated charging cylinder while filling
the charging cylinder with liquid: - Answer-Must be recovered
As of January 1st, 1996: - Answer-It is illegal to import or manufacture CFCs in the
United States
, As of November 15, 1993, all recovery equipment must: - Answer-Be fitted with low loss
fittings - Be certified by an EPA approved agency
As of November 15, 1993, recovery machines: - Answer-Must be certified to meet EPA
standards
A system may be said to be properly dehydrated when: - Answer-The vacuum indicator
has reached and held the required vacuum for a period of time
A technician who violates provisions of the CAA: - Answer-May be fined - May lose
certification - May be required to appear in court
Refrigerant cylinders should be transported in a ______________ position: - 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. - Answer-$10,000
Before using an empty recovery cylinder, you should: - Answer-Evacuate the cylinder
Before using a recovery unit, you should: - Answer-Check service valves positions -
Check oil level Evacuate
Blended refrigerants leak from a system: - Answer-In uneven amounts due to different
vapor pressures
CAA is the acronym for: - Answer-Clean Air Act
Can ester based oils be mixed with other oils? - Answer-No
Can mixed refrigerants be reclaimed? - Answer-No
Can state or local laws governing refrigerant be less strict than federal laws? - Answer-
No
Can you use a open flame to warm a refrigerant bottle? - Answer-No
CFCs are considered more harmful to the ozone layer than HCFCs because: - Answer-
They are not water soluble, and do not wash out of the atmosphere
Currently, almost all residential air conditioners use refrigerant ______________: -
Answer-HCFC-22
For safety, a technician should always wear_____________ and ____________ when
working around refrigerants: - Answer-Butyl gloves and goggles
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