The recovery process on an R-12 or R-134a A/C System should continue until a stable vac-
uum 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 be-
fore 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)
1
uum 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 be-
fore 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)
1
