HVAC EPA 608 Refrigerant Certification

Question 1

Which refrigerant is classified as a Class I ozone-depleting substance under EPA Section 608?

Accepted Answer

R-22

Answer

R-410A

Answer

R-134a

Answer

R-32

Question 2

Under EPA Section 608, technicians who violate refrigerant venting prohibitions can be fined up to how much per day per violation?

Accepted Answer

$44,539

Answer

$10,000

Answer

$25,000

Answer

$100,000

Question 3

What is the minimum recovery efficiency required for systems containing more than 200 pounds of refrigerant when using a system-dependent (passive) recovery device?

Accepted Answer

System-dependent devices cannot be used on systems over 200 lbs

Answer

70%

Answer

80%

Answer

90%

Question 4

Which type of EPA 608 certification is required to service small appliances containing five pounds or less of refrigerant?

Accepted Answer

Type I

Answer

Type II

Answer

Type III

Answer

Universal

Question 5

What does the term 'de minimis' release mean in the context of EPA Section 608?

Accepted Answer

Small releases that are not subject to the prohibition on venting

Answer

Refrigerant released during normal system operation

Answer

Releases from systems under 5 lbs charge

Answer

Any release below 5% of system charge

Question 6

Which refrigerant blend is considered a 'near-azeotropic' mixture that exhibits temperature glide?

Accepted Answer

R-404A

Answer

R-502

Answer

R-22

Answer

R-410A

Question 7

When must a technician recover refrigerant before opening or disposing of appliances?

Accepted Answer

Always, regardless of charge size

Answer

Only when refrigerant charge exceeds 50 lbs

Answer

Only for CFC and HCFC refrigerants

Answer

Only when the system is functioning normally

Question 8

What is the purpose of the 'high-pressure cut-out' switch in a refrigerant recovery system?

Accepted Answer

To protect the recovery compressor from high discharge pressure

Answer

To prevent overcharging the recovery cylinder

Answer

To limit refrigerant flow rate during recovery

Answer

To signal when recovery is complete

Question 9

Under EPA Section 608 regulations, recovery cylinders must be hydrostatically tested every how many years?

Accepted Answer

5 years

Answer

3 years

Answer

7 years

Answer

10 years

Question 10

Which factor most significantly affects the recovery rate when recovering refrigerant from a large commercial system?

Accepted Answer

The size of the recovery hoses and their length

Answer

The color of the recovery cylinder

Answer

Ambient temperature around the recovery machine

Answer

The age of the refrigeration system