4/6/26, 11:19 AM
RETA CARO Test 2 Questions & Answers 2026 /
2027 Complete Latest Update
Which refrigerant has the highest mass flow requirement at the same evaporator
and condensing temperature?
CFC-12
which refrigerant is the first to be phased out by Montreal Protocol
CFC-12
As the ratio between the evaporator and condensing pressure increases
the theoretical discharge temperature increases
Under the Montreal Protocol
as long as a technician does not perform work on the refrigerant containing
portions of a system they do not need to be certified
Refrigerant leaks are detected using
Either a sulfur stick on ammonia or electronic leak detector for CFCs or HCFCs
the primary reason for concern about CFC-12 concentration in an engine room is
oxygen deprivation
/ 1/4
RETA CARO Test 2 Questions & Answers 2026 /
2027 Complete Latest Update
Which refrigerant has the highest mass flow requirement at the same evaporator
and condensing temperature?
CFC-12
which refrigerant is the first to be phased out by Montreal Protocol
CFC-12
As the ratio between the evaporator and condensing pressure increases
the theoretical discharge temperature increases
Under the Montreal Protocol
as long as a technician does not perform work on the refrigerant containing
portions of a system they do not need to be certified
Refrigerant leaks are detected using
Either a sulfur stick on ammonia or electronic leak detector for CFCs or HCFCs
the primary reason for concern about CFC-12 concentration in an engine room is
oxygen deprivation
/ 1/4
