EPA 608 Type 1 Small Appliance– Practice Test 2

Correct answer is C:  for several minutes, shutting it off, then recover the refrigerant from the low side.

When using a passive system-dependent recovery method on an appliance with an operating compressor, you should run that appliances compressor for several minutes, shutting it off, then recover the refrigerant from the low side.

Correct answer is C:  captures refrigerant in a non-pressurized container.

A passive system-dependent recovery device for small appliances captures refrigerant in a non-pressurized container.

Correct answer is D:  restricted to technicians who are EPA certified in refrigerant recovery.

The sale of CFC and HCFC refrigerants is restricted to technicians who are EPA certified in refrigerant recovery.

Correct answer is D:  None of the above

Correct answer is C:  it is not mandatory to repair the leak but doing so is most responsible.

When servicing a small appliance with a leak it is not mandatory to repair the leak but doing so is most responsible.

Correct answer is D:  A domestic refrigerator.

For which of the following refrigeration systems/appliances would it be permissible to use a passive recovery device for refrigerant recovery?  A domestic refrigerator.

Correct answer is D:  All of the above.

When using any equipment or servicing any system that has schrader valves, it is critical to be vigilant of the following:

• Inspect the schrader valve core for bends and breakage.
• Replace any damaged schrader valve cores to prevent leakage.
• Cap the schrader ports to prevent accidental depression of the valve core.

Correct answer is A:   hydrochloric and hydrofluoric acids.

If R-12 or R-22 are exposed to high temperatures from open flames, glowing hot metal surfaces etc, these refrigerants can decompose to form hydrochloric and hydrofluoric acids.

Correct answer is B:   must be recovered.

When using a graduated charging cylinder, any refrigerant that is vented from the charging cylinder  must be recovered.

Correct answer is B:  never be used as a recovery device in combination with a pressurized container.

A standard vacuum pump designed specifically for evacuation and dehydration can never be used as a recovery device in combination with a pressurized container.

Correct answer is D:  The EPA certification has no expiration date.

The EPA Section 608 Stationary Refrigeration certification does not have to be renewed. The EPA certification has no expiration date.

Correct answer is D:  All of the above.

Prior to shipping any used refrigerant it is necessary to make sure of the following:

• Properly label the refrigerant container.
• Properly complete shipping paperwork.
• Check that the refrigerant container meets Department of Transportation standards.

Correct answer is D:  None of the above.

There is no “drop-in” replacement for R-12.  Although R-134a is considered a preferred replacement refrigerant, it is not a “drop-in” which is a term that implies that you do not have to change compressor lubricant, expansion valve etc.

Correct answer is A:  0 psig

After installing and opening a piercing access valve, if the system is 0 psig do not begin the recovery procedure.

Correct answer is D:  Both A and B

The EPA definition of a small appliance includes the following:

• A device manufactured, charged, and hermetically sealed from the factory.
• A device with a charge of 5 pounds or less.

Correct answer is C:  a passive system-dependent recovery device on a small appliance with a non-operating compressor

When using a passive system-dependent recovery device on a small appliance  with a non-operating compressor, it is essential to take extra measures such as heating or striking the compressor, to help release trapped refrigerant from the compressor oil.

Correct answer is A:   small appliances.

It is an EPA regulation that any person who opens an appliance  for maintenance, service, or repair, must have at least one self-contained recovery machine available at their place of business. The only exception to this rule are persons working on small appliances.

Correct answer is D:  Both A and C.

The following are part of the EPA’s recommended safe work practices:

• Wear safety glasses or goggles when working with any compressed gas.
• Wear butyl-lined gloves when connecting/disconnecting hoses.

Correct answer is A:  recovering 80% of the refrigerant whether or not the compressor is operating or achieving a 4-inch vacuum under conditions of ARI 740-1993.

Recovery devices that were manufactured before November 15 1993 and are used for recovery of refrigerant from small appliances must be capable of recovering 80% of the refrigerant whether or not the compressor is operating or achieving a 4-inch vacuum under conditions of ARI 740-1993.

Correct answer is D:  Both A and B

You’re going to have a hard time even trying to pierce a steel line… lol

Correct answer is D:  the systems compressor does not run.

When using a passive system-dependent recovery process, you should access both the high side and low side of the system for the refrigerant recovery if the systems compressor does not run.

Correct answer is B:  Only one access valve on the high side of the system.

On a small appliance with an operating compressor that has a completely plugged capillary tube, what is the minimum number of access valves that are needed to evacuate the refrigerant?  Only one access valve on the high side of the system.

Correct answer is B:  packaged terminal air-conditioners (PTACs) with  pounds or less of refrigerant.

Technicians with a Type I small appliance certification are certified to recover refrigerant during the maintenance, service, or repair of packaged terminal air-conditioners (PTACs) with  pounds or less of refrigerant.

Correct answer is C:   95 psig

A recovery cylinder which is half full of recovered R-500 at normal room temperature, about 75F, in the absence of non-condensables, will be pressurized to 95 psig.

Correct answer is D:  None of the above

Again, the phrase “drop-in” implies exactly that. But you cant just do that without changing compressor lubricant, expansion valves etc.