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EPA 608 CORE STUDY GUIDE QUIZ QUESTIONS AND ANSWERS $15.49   Add to cart

Exam (elaborations)

EPA 608 CORE STUDY GUIDE QUIZ QUESTIONS AND ANSWERS

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  • Course
  • EPA608
  • Institution
  • EPA608

EPA 608 CORE STUDY GUIDE QUIZ QUESTIONS AND ANSWERS

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  • August 17, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • EPA608
  • EPA608
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EPA 608 CORE STUDY GUIDE QUIZ
QUESTIONS 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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