EPA Section 608 Type I Exam Questions
and Answers
A) the technician certification is grandfathered for six months to allow time for taking the
recertification exam.
B) a new certification test must be taken within 90 days to be recertified.
C) a new certification test must be taken within 90 days to be recertified.
D) it is the technician's responsibility to comply with any future changes in the law.
Answer: D - correct Answers-If the EPA regulations should change after a technician
becomes certified:
A) hydrozine gas.
B) helium gas.
C) phosgene gas.
D) all of the above will be formed.
Answer: C - correct Answers-At high temperatures, (i.e., open flames, glowing metal
surfaces, etc.) R-12 and R-22 can decompose to form:
A) R-123
B) R-24
C) R-141a/141b blend
D) R-134a
Answer: D - correct Answers-Which of the following refrigerants is most commonly used
as a replacement for R-12 in new household refrigerators?
A) May 15, 1993.
B) June 15, 1992.
C) July 15, 1993.
D) November 15, 1993.
Answer: D - correct Answers-Recovery equipment used for the service or repair of small
appliances must be certified by an EPA- approved laboratory if the recovery
equipment was manufactured after:
A) 4 pounds
B) 5 pounds
C) 7 pounds
D) 10 pounds
, Answer: B - correct Answers-What is the maximum allowable factory charge of
refrigerant for Type I appliances?
A) The pressure reading along with a temperature reading can indicate if there is
excessive air or other non-condensables in the cylinder.
B) The pressure reading can indicate the remaining cylinder capacity.
C) The pressure reading can indicate if the refrigerant has been damaged.
D) both "a" and "c".
Answer: A - correct Answers-Why is it important to obtain an accurate pressure reading
of refrigerant inside a recovery cylinder?
A) recovering 90% of the refrigerant when the compressor is operating or achieving a 4
inch vacuum under the conditions of ARI 740-1993.
B) recovering 80% of the refrigerant when the compressor is operating.
C) recovering 95% of the refrigerant when the compressor is operating or achieving a 4
inch vacuum under the conditions of ARI740-1993.
D) recovering 85% of the refrigerant when the compressor is operating.
Answer: A - correct Answers-Recovery devices that were manufactured after November
15, 1993 and are used for recovery of refrigerant from small appliances must be
capable of:
A) they are too expensive to remain on every product.
B) they tend to leak over time.
C) they become loose and vibrate.
D) both "a" and "c"
Answer: B - correct Answers-Solderless piercing valves should not remain installed on
refrigeration systems after completion of repairs because:
A) only nitrogen vapor should be used.
B) only liquid nitrogen should be used.
C) either liquid or vapor nitrogen can be used.
D) nitrogen can only be used if mixed with R-22.
Answer: A - correct Answers-When ever nitrogen is used to pressurize or blow debris
out of the system:
A) a closed recovery tank inlet valve.
B) excessive air or other non-condensables in the recovery tank.
C) a closed recovery tank outlet valve.
D) Either choice "A" or "B"
Answer: D - correct Answers-What can cause excessive pressure on the high side of an
active self-contained recovery device?
and Answers
A) the technician certification is grandfathered for six months to allow time for taking the
recertification exam.
B) a new certification test must be taken within 90 days to be recertified.
C) a new certification test must be taken within 90 days to be recertified.
D) it is the technician's responsibility to comply with any future changes in the law.
Answer: D - correct Answers-If the EPA regulations should change after a technician
becomes certified:
A) hydrozine gas.
B) helium gas.
C) phosgene gas.
D) all of the above will be formed.
Answer: C - correct Answers-At high temperatures, (i.e., open flames, glowing metal
surfaces, etc.) R-12 and R-22 can decompose to form:
A) R-123
B) R-24
C) R-141a/141b blend
D) R-134a
Answer: D - correct Answers-Which of the following refrigerants is most commonly used
as a replacement for R-12 in new household refrigerators?
A) May 15, 1993.
B) June 15, 1992.
C) July 15, 1993.
D) November 15, 1993.
Answer: D - correct Answers-Recovery equipment used for the service or repair of small
appliances must be certified by an EPA- approved laboratory if the recovery
equipment was manufactured after:
A) 4 pounds
B) 5 pounds
C) 7 pounds
D) 10 pounds
, Answer: B - correct Answers-What is the maximum allowable factory charge of
refrigerant for Type I appliances?
A) The pressure reading along with a temperature reading can indicate if there is
excessive air or other non-condensables in the cylinder.
B) The pressure reading can indicate the remaining cylinder capacity.
C) The pressure reading can indicate if the refrigerant has been damaged.
D) both "a" and "c".
Answer: A - correct Answers-Why is it important to obtain an accurate pressure reading
of refrigerant inside a recovery cylinder?
A) recovering 90% of the refrigerant when the compressor is operating or achieving a 4
inch vacuum under the conditions of ARI 740-1993.
B) recovering 80% of the refrigerant when the compressor is operating.
C) recovering 95% of the refrigerant when the compressor is operating or achieving a 4
inch vacuum under the conditions of ARI740-1993.
D) recovering 85% of the refrigerant when the compressor is operating.
Answer: A - correct Answers-Recovery devices that were manufactured after November
15, 1993 and are used for recovery of refrigerant from small appliances must be
capable of:
A) they are too expensive to remain on every product.
B) they tend to leak over time.
C) they become loose and vibrate.
D) both "a" and "c"
Answer: B - correct Answers-Solderless piercing valves should not remain installed on
refrigeration systems after completion of repairs because:
A) only nitrogen vapor should be used.
B) only liquid nitrogen should be used.
C) either liquid or vapor nitrogen can be used.
D) nitrogen can only be used if mixed with R-22.
Answer: A - correct Answers-When ever nitrogen is used to pressurize or blow debris
out of the system:
A) a closed recovery tank inlet valve.
B) excessive air or other non-condensables in the recovery tank.
C) a closed recovery tank outlet valve.
D) Either choice "A" or "B"
Answer: D - correct Answers-What can cause excessive pressure on the high side of an
active self-contained recovery device?
