ASE AC 609 EXAM SCRIPT
✔✔If the required charge level of refrigerant for an MVAC system is 40 ounces, which of
these is the correct charge level measured in pounds?
(A) 1.75 lb (794 g)
(B) 2.50 lb (1.13 kg)
(C) 3.75 lb (1.70 kg)
(D) 4.50 lb (2.04 kg) - ✔✔(B) 2.50 lb (1.13 kg)
✔✔How many ounces are in a pound? - ✔✔16 oz
✔✔Technician A says that recovery/recycling/recharging equipment for R-1234yf
refrigerant requires integration with a refrigerant identifier.
Technician B says that recovery/recycling/recharging equipment for R-1234yf refrigerant
uses a 17mm O.D. quick coupler on the low-side service hose.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B - ✔✔(A) A only
why is B wrong?
✔✔Which of these identifies a cylinder of R-1234yf refrigerant?
(A) White
(B) Gray
(C) Light blue
(D) White with red band - ✔✔(D) White with red band
✔✔A container of recycled R-134a refrigerant that is being tested for non-condensable
gases (air) should be:
(A) chilled to 45° (7°C).
(B) stored out of direct sunlight.
(C) heated to 95°F (35°C).
(D)stored for less than 6 hours. - ✔✔(B) stored out of direct sunlight.
✔✔The EPA allows the use of R-134a recovery-only equipment provided that the:
(A) equipment meets J2810 standards.
(B) equipment meets J1991 standards.
(C) recovered refrigerant is stored below 120°F (49°C).
(D) recovered refrigerant is stored in a white container. - ✔✔(A) equipment meets J2810
standards.
, ✔✔Technician A says that it is OK to use a disposable refrigerant tank to store recycled
refrigerant.
Technician B says that it is OK to fill an approved refrigerant tank to 70% of its gross
weight rating.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B - ✔✔(D) Neither A nor B
why?
✔✔Before a container of stored recycled refrigerant is used, the container must be
checked for:
(A) gross weight.
(B) non-condensable gases.
(C) moisture contamination.
D) DOT approval. - ✔✔(B) non-condensable gases.
✔✔Recovery equipment for R-134a refrigerant must meet standards set by:
(A) SAE
(B) UL/ETL
(C) EPA
(D) DOT - ✔✔(A) SAE
✔✔Alternative refrigerants use a unique set of service fittings that:
(A) prevent accidental mixing of refrigerants.
(B) are easier to locate.
(C) prevent accidental loss of refrigerants.
(D) are more cost effective. - ✔✔(A) prevent accidental mixing of refrigerants.
✔✔Technician A says that R-744 refrigerant is accepted by the EPA as an alternative
for retrofit.
Technician B says that R-134a refrigerant is accepted by the EPA as an alternative for
retrofit.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B - ✔✔(B) B only
Why is A wrong?
✔✔If the required charge level of refrigerant for an MVAC system is 40 ounces, which of
these is the correct charge level measured in pounds?
(A) 1.75 lb (794 g)
(B) 2.50 lb (1.13 kg)
(C) 3.75 lb (1.70 kg)
(D) 4.50 lb (2.04 kg) - ✔✔(B) 2.50 lb (1.13 kg)
✔✔How many ounces are in a pound? - ✔✔16 oz
✔✔Technician A says that recovery/recycling/recharging equipment for R-1234yf
refrigerant requires integration with a refrigerant identifier.
Technician B says that recovery/recycling/recharging equipment for R-1234yf refrigerant
uses a 17mm O.D. quick coupler on the low-side service hose.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B - ✔✔(A) A only
why is B wrong?
✔✔Which of these identifies a cylinder of R-1234yf refrigerant?
(A) White
(B) Gray
(C) Light blue
(D) White with red band - ✔✔(D) White with red band
✔✔A container of recycled R-134a refrigerant that is being tested for non-condensable
gases (air) should be:
(A) chilled to 45° (7°C).
(B) stored out of direct sunlight.
(C) heated to 95°F (35°C).
(D)stored for less than 6 hours. - ✔✔(B) stored out of direct sunlight.
✔✔The EPA allows the use of R-134a recovery-only equipment provided that the:
(A) equipment meets J2810 standards.
(B) equipment meets J1991 standards.
(C) recovered refrigerant is stored below 120°F (49°C).
(D) recovered refrigerant is stored in a white container. - ✔✔(A) equipment meets J2810
standards.
, ✔✔Technician A says that it is OK to use a disposable refrigerant tank to store recycled
refrigerant.
Technician B says that it is OK to fill an approved refrigerant tank to 70% of its gross
weight rating.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B - ✔✔(D) Neither A nor B
why?
✔✔Before a container of stored recycled refrigerant is used, the container must be
checked for:
(A) gross weight.
(B) non-condensable gases.
(C) moisture contamination.
D) DOT approval. - ✔✔(B) non-condensable gases.
✔✔Recovery equipment for R-134a refrigerant must meet standards set by:
(A) SAE
(B) UL/ETL
(C) EPA
(D) DOT - ✔✔(A) SAE
✔✔Alternative refrigerants use a unique set of service fittings that:
(A) prevent accidental mixing of refrigerants.
(B) are easier to locate.
(C) prevent accidental loss of refrigerants.
(D) are more cost effective. - ✔✔(A) prevent accidental mixing of refrigerants.
✔✔Technician A says that R-744 refrigerant is accepted by the EPA as an alternative
for retrofit.
Technician B says that R-134a refrigerant is accepted by the EPA as an alternative for
retrofit.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B - ✔✔(B) B only
Why is A wrong?
