#3 EPA 608 Type I

A very large refrigerant leak can cause suffocation because refrigerants;

• smell strong and make breathing difficult.

• are lighter than air and cause dizziness.

• are heavier than air and displace oxygen.

• sting the nose and cause sneezing.

Equipment which is used to recover CFC, HCFC, and HFC refrigerant from small appliances for the purpose of disposal must meet what standard?

• Recover 95% or the refrigerant whether or not the compressor is operative.

• Recover 80% of the refrigerant with an inoperative compressor and 90% of the refrigerant with an operative compressor.

• Recover 90% of the refrigerant with an inoperative compressor and 80% of the refrigerant with an operative compressor.

• Recover 75% of the refrigerant within 5 minutes.

For which of the following refrigeration systems/appliances would it be permissible to use a passive recovery device for recovery of CFCs, HCFCs, and HFCs?

• A centrifugal air conditioner

• A reciprocating liquid chiller

• A single compressor, large commercial walk-in freezer

• A domestic refrigerator

If a large leak of refrigerant occurs, such as from a filled cylinder in an enclosed area, what action should be taken when no self-contained breathing apparatus is available?

• Use butyl lined gloves and try to stop the leak.

• Use a leak detector to locate the leak and try to stop the leak.

• Vacate and naturally ventilate the spill area.

• Make sure the unit is de-energized, close the service valves and try to stop the leak.

Permanent safety markings are NOT required on which of the following areas on household refrigerators using HC refrigerants?

• On or near any evaporators and near any exposed refrigerant tubing.

• Near the machine compartment.

• On the inside of the refrigerator door.

• On the exterior of the refrigerator.

What can CFC and HCFC refrigerants decompose into at high temperatures (e.g. open flames, glowing metal surfaces, etc.)?

• Boric and chromic acids

• Sulfuric and phosphoric acids

• Hydrochloric and hydrofluoric acids

• Phosphoric and dodecylbenzenesulfonic acid

What is the approximate pressure of a storage cylinder of recovered R-404A that does not contain any non-condensable impurities and is stored in a room where the temperature is 80°F?

• 68 psig

• 72 psig

• 174 psig

• 288 psig

What is the maximum allowable factory charge of refrigerant for Type I appliances using CFCs, HCFCs, or HFCs?

• 3 pounds

• 5 pounds

• 10 pounds

• 15 pounds

What must be done to the refrigerant that is vented off the top when filling a charging cylinder?

• The refrigerant need not be recovered.

• The refrigerant must be recovered only if it is a CFC of HCFC.

• The refrigerant must be recovered if it is a CFC, HCFC, or HFC.

• The refrigerant must be reclaimed or incinerated.

What type of appliances are technicians certified to charge and open after passing the Type I examination?

• Appliances containing 5 pounds or less of refrigerant that have been hermetically sealed and charged at the factory.

• Split systems containing 5 pounds or less of refrigerant that have been hermetically sealed and charged at the factory.

• Appliances containing 5 pounds or less of refrigerant that have an open drive compressor and have been charged at the factory.

• Motor vehicle air-conditioning equipment.