EPA TYPE 1 NEW TEST

1. If the EPA regulations should change after a technician becomes certified:

• 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.

2. At high temperatures, (i.e., open flames, glowing metal surfaces, etc.) R-12 and R-22 can decompose to form:

• A) hydrozine gas.

• . B) helium gas.

• C) phosgene gas.

• D) all of the above will be formed.

3. Which of the following refrigerants is most commonly used as a replacement for R-12 in new household refrigerators? A) R-123 B) R-24 C) R-141a/141b blend D) R-134a

• A) R-123

• B) R-24

• C) R-141a/141b blend

• D) R-134a

4. 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) May 15, 1993.

• B) June 15, 1992.

• C) July 15, 1993.

• D) November 15, 1993.

5. What is the maximum allowable factory charge of refrigerant for Type I appliances?

• A) 4 pounds

• B) 5 pounds

• C) 7 pounds

• D) 10 pounds

6. Why is it important to obtain an accurate pressure reading of refrigerant inside a recovery cylinder?

• 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".

7. Recovery devices that were manufactured after November 15, 1993 and are used for recovery of refrigerant from small appliances must be capable of:

• 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.

8. Solderless piercing valves should not remain installed on refrigeration systems after completion of repairs because:

• 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"

9. When ever nitrogen is used to pressurize or blow debris out of the system:

• 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.

10. What can cause excessive pressure on the high side of an active self-contained recovery device?

• 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"