When using a system-dependent recovery process, start each recovery from every appliance using:

 If you were evacuating a sealed system that has an operating compressor and a completely restricted capillary tube, you would need only one access valve. This valve would be on the _________side of the system.

A standard vacuum pump can never be used as a recovery device in combination with a __________.

Motor vehicle air conditioning-like systems that hold 3 pounds of R-12 refrigerant is:

Type 1 or Universal certification does not cover ______________systems that hold three pounds of R-12.

It is ___________responsibility to keep abreast of changes & to comply with any future changes of refrigerant recovery laws.

______&____________must be worn when connecting or disconnecting hoses

Regardless of the type of recovery machine you use, (system-dependent or self-contained) EPA rules state that you must capture at least ____% of the refrigerant from a small appliance.

The drop-in replacement for R-12 is:

The only way to determine the level of refrigerant in a recovery tank is to:

If a large leak of refrigerant occurs in an enclosed space, a _____________is required before entering to make repairs.

The maximum normal charge of HCFC or HFC refrigerant in an appliance, that is allowed to use a system dependent recovery unit is ________pounds.

The EPA requires that if you vent the refrigerant form the top of a charging cylinder in order to fill it, you MUST______________the refrigerant that is vented.

A self-contained recovery machine requires the first appliance having its recovery started using a non-pressurized recovery tank & all other recoveries of other appliances:

If you detect a pungent odor during a recovery, you should suspect:

R-12 & R-22 will react to heat & high temperatures to form ________&_________gas during soldering/brazing.

If you install a solderless type of piercing access valve, you should:

The pressure from a tank of nitrogen without the use of a regulator could reach levels as high as ____, therefore we must always use a regulator.

After using nitrogen to blow-out debris from a system, this gas may be:

Solderless type piercing valves should be:

EPA Section 608 requries capture of ________% of HCFCs and HFCs from small appliance sealed systems with a non-operating compressor if the technician is using either passive or active recovery devices.

A small appliances leak should be repaired:

If you install a piercing valve and find that a system has 0 psig, you must:

Service technicians should watch for signs of oil contamination when recovering refrigerants from systems experiencing compressor burnout.  If the system is a burnout, it will need to be:

When performing a recovery on units using different refrigerants

Permanent safety markings are not required on the inside of the refrigerator door on household refrigerators using ______refrigerants.

Drop-in refrigerants are often overheard in the field....at this time, drop in refrigerants:

R-_______ is a very high pressure refrigerant and generally does not need to be recovered.

Any leaking Schrader valve cores that are suspected to be leaking should:

Self contained recovery equipment being used on systems with operating compressors must either recover refrigerants to _______inches of Hg vacuum or recover _____percent of the nameplate charge.

All recovery equipment  must be certified to be capable of recovering ______% of the refrigerant when the appliance compressor is not operating.

When using a system-dependent recovery machine where the compressor does not run, the EPA recommends that you:

Using a system dependent recovery device on a system that has an inoperative compressor, we should:

Refrigerants are ______________than air

CFC and HCFC refrigerants exposed to high temperatures; particularly open flames or hot, glowing, metal surfaces decompose to form__________.

New household refrigerators may be manufactured with R-_________.

Excessive pressure on the high side of a self-contained recovery device is caused when there is a ____________ of non-condensable gas in the refrigerant being recovered.

A storage cylinder of R-134a at a room temperature of 80 in the absence of non-condensable will be pressurized to about ________psig?

Type I technicians may:

How can a technician check to see if a recovery tank has mixed refrigerants in it?

The EPA recommends that you check recovery equipment for refrigerant leaks:

To speed the recovery from a frost-free refrigerator you can ________________to vaporize any trapped liquid refrigerant.

R-_______a is the approved refrigerant for new household refrigerators, freezers, and combination refrigeration/freezers.

What is the best choice for pressurizing a system to check for leaks?