CFC Core exam 2023 - Test 1 # 24
questions and answers.
A single atom of Chlorine can destroy - -100.000 ozone
molecules
-The atom found in CFC and HCFC refrigerants that destroys
ozone in the stratosphere is: - -Chlorine
-Which refrigerate is a CFC? - -R-12
-Which refrigerant is a HFC? - -R-134a
-Which refrigerant contains no chlorine? - -R-134a
-What range is displayed on a high pressure gauge on a service
manifold? - -0-800 psi
-The rule of thumb for refilling approved cylinders is a maximum
of __ percent liquid? - -80%
-How does Global warming potential of R-410A compare to
carbon dioxide? - -It is thousands of times greater
-To RECOVER refrigerant is to: - -Remove refrigerant is any
condition from a system in either an active or passive manner,
and store it in an external container without necessarily testing
or processing.
-Ozone in the earths stratosphere protect us from: - -UV Rays
-Which of the following refrigerants in an HFO? - -R-1234yf
-A serious result of the damage to the ozone layer is: - -
Increased Skin Cancer
-The condition and state of the refrigerant leaving a receiver is: -
-Subcooled Liquid
questions and answers.
A single atom of Chlorine can destroy - -100.000 ozone
molecules
-The atom found in CFC and HCFC refrigerants that destroys
ozone in the stratosphere is: - -Chlorine
-Which refrigerate is a CFC? - -R-12
-Which refrigerant is a HFC? - -R-134a
-Which refrigerant contains no chlorine? - -R-134a
-What range is displayed on a high pressure gauge on a service
manifold? - -0-800 psi
-The rule of thumb for refilling approved cylinders is a maximum
of __ percent liquid? - -80%
-How does Global warming potential of R-410A compare to
carbon dioxide? - -It is thousands of times greater
-To RECOVER refrigerant is to: - -Remove refrigerant is any
condition from a system in either an active or passive manner,
and store it in an external container without necessarily testing
or processing.
-Ozone in the earths stratosphere protect us from: - -UV Rays
-Which of the following refrigerants in an HFO? - -R-1234yf
-A serious result of the damage to the ozone layer is: - -
Increased Skin Cancer
-The condition and state of the refrigerant leaving a receiver is: -
-Subcooled Liquid
