SAE 609

Technician A says that R-1234yf may be used to retrofit an R-134a system Technician B says that R-1234yf is an ozone-depleting gas who is right

A only

The EPA allows the use of R-134a recovery-one equipment provided that the:

Equipment meets J2810 standards

Before a container of stored recycled refrigerant is used, the container must be checked for:

Non-condesable gases

R-1234yf is a preferred refrigerant over R-134a because

R-1234yf has a lower GWP

technicians servicing an MVAC system should do any of these EXCEPT

Store refrigerant in a disposable container

The ozone layer filters out most of the suns harmful:

Ultraviolet radiation

SAE standard J2099 specifies that the maximum level of non-condensable gases in recycled R-134a should not exceed:

1.5% by volume

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

2 minutes

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

2.50lb (1.13)

R-1234yf refrigerant has a global warming potential (GWP) of

4

the reduction of ozone in the stratosphere could cause:

An increase of skin cancer and eye cataracts

Technician A says that SAE standard J639 spells out details for system design, implementation and service Technician B says that SAE standard J639 specifies refrigerant fitting types and sizes for each refrigerant who is right

Both A and B

Technician A says that anyone servicing MVAC systems for hire must be trained and certified Technician B says that each piece of refrigerant handling equipment that is used to service motor vehicle air conditioners must be approved and certified who is right

Both A and B

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's right

Both A and B

empty disposable R-134a refrigerant containers should be

Evacuated into a recovery/ recycling machine

Which identifies R-744

Gray

Which of these is a flammable refrigerant, unacceptable under SNAP as a suitable for CFC-12

HC-12a

R 134a refrigerant must be reclaimed to meet which of these purity standards

J2099

Requirements for recovery/recycling/recharging equipment for R-1234yf refrigerant are set by SAE standard

J2843

Electronic leak detectors for R-1234yf should meet

J2913

Which identifies R-134a

Light blue

Technician A says that it is OKAY to use disposable refrigerant tank to store recycled refrigerant Technician B says that it is OKAY to fill an approved refrigerant tank to 70% of it gross weight rating who's right

Neither A or B. Never store in disposable container or fill above 60% of gross weight rating

Alternative refrigerants use a unique set of service fittings that:

Prevent accidental mixing of refrigerants

A technician who's successfully completes the training and certification on an EPA-approved section 609 program can be legally service MVAC systems that use any of these refrigerants EXCEPT

R-22

recovery equipment for R-134a Refrigerant must meet standards set by:

SAE

Servicing MVAC systems on hybrid and electric vehicles requires:

Special service procedures to disable the high voltage system prior to service

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

Stored out of direct sunlight

Technician A says that recovery/ recycling/ recharging equipment for R-1234yf refrigerant requires integration with a refrigerant identifier. Technician B says that recovery/ recycling/ recharging equipment for R-1234yf refrigerant uses a 17.0 mm O.D. quick coupler on the low-side service hose. who's right

Technician A only

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 storage area before use Technician B says that the vapor in the container should be slowly vented into a refrigerant handling unit who's right

Technician B only

Technician A says that R-744 refrigerant is accepted by the EPA as an alternative for retrofit Technician B says that R-134a refrigerant is accepted by the EPA as an alternative for retrofit whos right

Technician B only

Which identifies R-12 refrigerant

White

Which of these identifies a cylinder of R-1234yf refrigerant

White With red Band

When service equipment hoses with manual shutoff valves are not connected to an A/C system, the valves should be in the:

Closed position