EPA 608 Refrigeration CORE
Examination Questions
and Answers Verified Solutions Latest
Update
Question:
Each chlorine atom in the stratosphere can destroy how many ozone molecules?
Answer:
100,000 ozone molecules
Question:
Which refrigerant contains a CFC? R500, R12, R113 or R11?
Answer:
Theyre all CFC's
Question:
HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain?
Answer:
Hydrogen, chlorine, flourine and carbon
Question:
Which refrigerant is a chlorine free refrigerant?
Answer:
HFC R 134A
Question:
What is the result damage to the ozone layer?
Answer:
Increases in human skin cancer
,Question:
According to the EPA, chlorine in the stratosphere is believed to come primarily from
the CFCs rather than from volcanoes because
Answer:
) The rise in the amount of chlorine measured in the stratosphere over the past 2
decades matches the rise of chlorine which has different natural sources of chlorune
overthe same period -) The rise of chlorine in the statosphere matches the rise in CFCs
over the same period -) samples of air taken over erupting volcanoes shows that
volcanoes contribute a small amount of chlorine in the stratosphere compared to CFCs
-) ALL OF THE ABOVE
Question:
Which is a violation of the EPA clean air act?
Answer:
) falsifying or failing to keep required records -) failing to keep evacuation levels before
opening or disposing of appliances -) knowingly releasing HFC's, HCFCs or CFC
refrigerants -) ALL OF THE ABOVE
Question:
Discarding of disposable cylinders is accomplished by
Answer:
Assuring that all refrigerant is recovered and that the cylinders are rendered useless
then recycle the metal
Question:
How much money can be awarded to a person who supplies information leading to a
conviction against the technician who is intentionally venting refrigerants or
violatingsome other provision of the EPA CLEAN AIR ACT
Answer:
$10,000
Question:
CFC's will no longer be manufactured or imported into the U.S. after what year?
Answer:
1995
,Question:
Since July 1, 1992 it has been illegal to
Answer:
Knowingly releasing HCF or HCFC refrigerants in the U.S.
Question:
Which compounds are controlled by the Montreal protocol?
Answer:
) chloric floric carbons -) hydro chloric carbons -) halons -) all of the above
Question:
EPA regulations cover all AC and refrigeration equipment when containing what?
Answer:
Any refrigerant or refrigerant substitute
Question:
The syntetic substitute currently usedwith blends containing HCFCs is
Answer:
Alcobenzine
Question:
What is the significance of atheotropic mixture
Answer:
The mixture combines to act as a single compound refrigerant
Question:
Cooling occurs in a vapor compression refrigeration system when
Answer:
Refrigerant liquid boils into a vapor
, Question:
Ozone depletion in the stratosphere is what type of problem
Answer:
Its a GLOBAL problem
Question:
The definition of recover is
Answer:
To remove refrigerant in any condition from a system and store it an external container
without neccesarily testing it
Question:
Which of the following leak detection methods is considered by the EPA to be the
effective for locating the general area of small leaks?
Answer:
Electronic ultrasonic testers
Question:
Recovery during low ambient temperatures will
Answer:
Slow the recovery process
Question:
During dehydration of a refrigeration system the refrigeration system is heated to
Answer:
Decrease dehydration time
Question:
To determine the safe pressure for leak testing one should use
Answer:
Low side test data plate value
Examination Questions
and Answers Verified Solutions Latest
Update
Question:
Each chlorine atom in the stratosphere can destroy how many ozone molecules?
Answer:
100,000 ozone molecules
Question:
Which refrigerant contains a CFC? R500, R12, R113 or R11?
Answer:
Theyre all CFC's
Question:
HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain?
Answer:
Hydrogen, chlorine, flourine and carbon
Question:
Which refrigerant is a chlorine free refrigerant?
Answer:
HFC R 134A
Question:
What is the result damage to the ozone layer?
Answer:
Increases in human skin cancer
,Question:
According to the EPA, chlorine in the stratosphere is believed to come primarily from
the CFCs rather than from volcanoes because
Answer:
) The rise in the amount of chlorine measured in the stratosphere over the past 2
decades matches the rise of chlorine which has different natural sources of chlorune
overthe same period -) The rise of chlorine in the statosphere matches the rise in CFCs
over the same period -) samples of air taken over erupting volcanoes shows that
volcanoes contribute a small amount of chlorine in the stratosphere compared to CFCs
-) ALL OF THE ABOVE
Question:
Which is a violation of the EPA clean air act?
Answer:
) falsifying or failing to keep required records -) failing to keep evacuation levels before
opening or disposing of appliances -) knowingly releasing HFC's, HCFCs or CFC
refrigerants -) ALL OF THE ABOVE
Question:
Discarding of disposable cylinders is accomplished by
Answer:
Assuring that all refrigerant is recovered and that the cylinders are rendered useless
then recycle the metal
Question:
How much money can be awarded to a person who supplies information leading to a
conviction against the technician who is intentionally venting refrigerants or
violatingsome other provision of the EPA CLEAN AIR ACT
Answer:
$10,000
Question:
CFC's will no longer be manufactured or imported into the U.S. after what year?
Answer:
1995
,Question:
Since July 1, 1992 it has been illegal to
Answer:
Knowingly releasing HCF or HCFC refrigerants in the U.S.
Question:
Which compounds are controlled by the Montreal protocol?
Answer:
) chloric floric carbons -) hydro chloric carbons -) halons -) all of the above
Question:
EPA regulations cover all AC and refrigeration equipment when containing what?
Answer:
Any refrigerant or refrigerant substitute
Question:
The syntetic substitute currently usedwith blends containing HCFCs is
Answer:
Alcobenzine
Question:
What is the significance of atheotropic mixture
Answer:
The mixture combines to act as a single compound refrigerant
Question:
Cooling occurs in a vapor compression refrigeration system when
Answer:
Refrigerant liquid boils into a vapor
, Question:
Ozone depletion in the stratosphere is what type of problem
Answer:
Its a GLOBAL problem
Question:
The definition of recover is
Answer:
To remove refrigerant in any condition from a system and store it an external container
without neccesarily testing it
Question:
Which of the following leak detection methods is considered by the EPA to be the
effective for locating the general area of small leaks?
Answer:
Electronic ultrasonic testers
Question:
Recovery during low ambient temperatures will
Answer:
Slow the recovery process
Question:
During dehydration of a refrigeration system the refrigeration system is heated to
Answer:
Decrease dehydration time
Question:
To determine the safe pressure for leak testing one should use
Answer:
Low side test data plate value
