WITH COMPLETE SOLUTION
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: Answer - 2 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
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 Answer - Technician B only
The ozone layer filters out most of the suns harmful: Answer - Ultraviolet
radiation
the reduction of ozone in the stratosphere could cause: Answer - An increase
of skin cancer and eye cataracts
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 Answer - Both A and B
, R 134a refrigerant must be reclaimed to meet which of these purity standards
Answer - J2099
if the required charge level of refrigerant for MVAC system is 40 ounces which
of these is correct charge level measured in pounds Answer - 2.50lb (1.13)
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 Answer - Technician A only
Which of these identifies a cylinder of R-1234yf refrigerant Answer - White
With red Band
Which identifies R-12 refrigerant Answer - White
Which identifies R-134a Answer - Light blue
Which identifies R-744 Answer - Gray
A container of recycled R-134a refrigerant that is being tested for non-
condensable gases (air) should be: Answer - Stored out of direct sunlight
The EPA allows the use of R-134a recovery-one equipment provided that the:
Answer - Equipment meets J2810 standards