Refrigerant Recovery and Recycling Quiz

The recovery process on an R-12 or R-134a A/C system should continue until a stable vacumm is held by the system for:

• 1 minute

• 2 minutes.

• 4 minutes.

• 5 minutes.

A recycled refrigerant container has been checked and found to be above the given pressure limit for the ambient temperature.

Technician A: Says that the refrigerant container should be placed in a cooler strage area before use.

Technician B: Says that the vapor in the container should be slowly vented into a refrigerant handling unit.

Who is right?

• A only

• B only

• Both A and B

• Neither A or B

The ozone layer filters out most of the sun's harmful:

• Infrared radiation.

• Ultraviolet radiation

• Gamma radiation

• Alpha radiation

The reduction of ozone in the stratosphere could cause:

• an increase in skin cancer and eye cataracts

• an increase in plant life growth.

• an increase in the earth's polar ice.

• an increase in marine life growth.

Technician a says that sunlight striking CFC molecules can cause chlorine to be released.

Technician B says that chlorine atoms react with ozone to produce chlorine monoxide.

Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

R-134a refrigerant must be recycled to meet which of these purity standards?

• J2788

• Dot-4ba

• J1991

• J2099

If the required charge level of refrigerant for an MVAC system is 40 ounces, which of these is the correct charge level measured in pounds

• 1.75 lb

• 2.50 lb

• 3.75 lb

• 4.50 lb

Technician A says that recovery/recycling/recharging equipment for R1234yf refrigerant requires integration with a refrigerant identifier.

Technician B says that recovery/recycling/recharging equipment for R1234yf refrigerant uses a 17mm O.D. quick coupler on the low side service hose.

Who is right?

• A only

• B only

• Both A and B

• Niether A nor B

Which of these identifies a cylinder of R1234yf refrigerant?

• White

• Gray

• Light Blue

• White with red band

A container of recycled R-134a refrigerant that is being tested for non-condensable gases (air) should be:

• chilled to 45 degrees

• stored out of direct sunlight

• heated to 95 F

• stored for less than 6 hours