EPA 608 Type I Practice Test 2

Question 1

Type I certification under EPA Section 608 specifically covers technicians servicing which type of equipment?

Accepted Answer

Small appliances — hermetically sealed systems with 5 lbs or less of CFC/HCFC

Answer

Large commercial chillers using low-pressure refrigerants

Answer

Motor vehicle air conditioning systems

Answer

High-pressure systems above 50 lbs charge

Question 2

What method of refrigerant recovery is typically used for Type I small appliances where the compressor is still operational?

Accepted Answer

System-dependent (passive) recovery using the appliance's own compressor

Answer

Active recovery using a separate recovery machine with its own compressor

Answer

Purging the refrigerant through the access port into a collection bag

Answer

Recovery is not required if the full charge is under 2 lbs

Question 3

A household refrigerator typically uses which refrigerant in modern production?

Accepted Answer

R-134a (HFC-134a) or R-600a (isobutane)

Answer

R-12 (CFC-12)

Answer

R-22 (HCFC-22)

Answer

R-410A (HFC blend)

Question 4

For Type I small appliances, what is the required recovery efficiency when the appliance's compressor is NOT functioning?

Accepted Answer

The system must be evacuated to 4 inches of mercury vacuum

Answer

80% of the charge must be recovered

Answer

90% of the charge must be recovered

Answer

No specific efficiency standard applies to inoperable compressors

Question 5

Which organization certifies recovery equipment used for servicing Type I small appliances?

Accepted Answer

AHRI (Air-Conditioning, Heating, and Refrigeration Institute) certifies recovery equipment under EPA-approved programs

Answer

The EPA certifies all recovery equipment directly

Answer

UL (Underwriters Laboratories) certifies small appliance recovery equipment

Answer

Recovery equipment for small appliances requires no certification

Question 6

R-600a (isobutane) used as a refrigerant in some small appliances presents which unique safety concern?

Accepted Answer

It is a highly flammable refrigerant (Class A3) requiring special handling precautions

Answer

It has the highest ozone depletion potential of any common refrigerant

Answer

It is extremely toxic at low concentrations and requires SCBA protection

Answer

It reacts violently with water in the refrigerant circuit