EPA SECTION 608 UNIVERSAL CERTIFICATION
PRE-ASSESSMENT EXAM COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) A+ GRADED
What makes HFC refrigerants damaging to the environment? - CORRECT ANSWER
✔✔- They can have very high global warming potentials.
______________ returns refrigerant to new product specifications and requires
chemical analysis to verify the purity to AHRI-700 standards. - CORRECT ANSWER
✔✔- Reclaiming
The ability of a substance to destroy ozone in the stratosphere is referred to as
___________________. - CORRECT ANSWER ✔✔- ODP (Ozone Depletion
Potential)
The pressure range that is typically displayed on a high-pressure manifold gauge is
______. - CORRECT ANSWER ✔✔- 0 to 800 psig
HFO refrigerants are miscible in_________________ lubricants? - CORRECT
ANSWER ✔✔- POE lubricants
All new recovery equipment must __________________________. - CORRECT
ANSWER ✔✔- Be EPA approved and have an EPA-approved certification label
attached.
, _________________ make(s) HFO refrigerants less flammable than HC
refrigerants. - CORRECT ANSWER ✔✔- Fluorine
An example of an HCFC refrigerant is: - CORRECT ANSWER ✔✔- R-123
Long hoses between the unit and the recovery machine_______________. -
CORRECT ANSWER ✔✔- Can cause excessive pressure drop and increased
recovery time.
EPA recommends this service practice to conserve refrigerant. - CORRECT
ANSWER ✔✔- Find and repair leaks in the system.
What is being done in the U.S. to stop damage to the stratospheric ozone layer? -
CORRECT ANSWER ✔✔- Eliminating the use of CFCs and HCFCs refrigerants.
______________ contains chlorine. - CORRECT ANSWER ✔✔- R-22
Never fill a refillable refrigerant cylinder beyond _________________. - CORRECT
ANSWER ✔✔- 80% of its capacity by weight
The high-pressure gauge on a typical gauge manifold set is typically
colored______________. - CORRECT ANSWER ✔✔- Red
Before recharging any flammable hydrocarbon or HFO refrigerant, always
______________. - CORRECT ANSWER ✔✔- Electrically ground the recovery
machine and recovery tank, verify the refrigeration system is grounded, install a
PRE-ASSESSMENT EXAM COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) A+ GRADED
What makes HFC refrigerants damaging to the environment? - CORRECT ANSWER
✔✔- They can have very high global warming potentials.
______________ returns refrigerant to new product specifications and requires
chemical analysis to verify the purity to AHRI-700 standards. - CORRECT ANSWER
✔✔- Reclaiming
The ability of a substance to destroy ozone in the stratosphere is referred to as
___________________. - CORRECT ANSWER ✔✔- ODP (Ozone Depletion
Potential)
The pressure range that is typically displayed on a high-pressure manifold gauge is
______. - CORRECT ANSWER ✔✔- 0 to 800 psig
HFO refrigerants are miscible in_________________ lubricants? - CORRECT
ANSWER ✔✔- POE lubricants
All new recovery equipment must __________________________. - CORRECT
ANSWER ✔✔- Be EPA approved and have an EPA-approved certification label
attached.
, _________________ make(s) HFO refrigerants less flammable than HC
refrigerants. - CORRECT ANSWER ✔✔- Fluorine
An example of an HCFC refrigerant is: - CORRECT ANSWER ✔✔- R-123
Long hoses between the unit and the recovery machine_______________. -
CORRECT ANSWER ✔✔- Can cause excessive pressure drop and increased
recovery time.
EPA recommends this service practice to conserve refrigerant. - CORRECT
ANSWER ✔✔- Find and repair leaks in the system.
What is being done in the U.S. to stop damage to the stratospheric ozone layer? -
CORRECT ANSWER ✔✔- Eliminating the use of CFCs and HCFCs refrigerants.
______________ contains chlorine. - CORRECT ANSWER ✔✔- R-22
Never fill a refillable refrigerant cylinder beyond _________________. - CORRECT
ANSWER ✔✔- 80% of its capacity by weight
The high-pressure gauge on a typical gauge manifold set is typically
colored______________. - CORRECT ANSWER ✔✔- Red
Before recharging any flammable hydrocarbon or HFO refrigerant, always
______________. - CORRECT ANSWER ✔✔- Electrically ground the recovery
machine and recovery tank, verify the refrigeration system is grounded, install a
