EPA 608 Universal Certification (SkillCat) | High-Yield
Questions & Answers & HVAC Exam Prep| Graded A+
,Verified and Updated | Frequently Most Tested
Questions | Latest Exam and Brand new Version!!!
Refrigeration technicians who violate the Clean Air Act can: -
CORRECT ANSWER:
Lose their EPA certification, be fined, be required to appear in Federal court.
After 1995, any supplies of CFC refrigerants to service existing units in the USA
can only come from: -
CORRECT ANSWER:
recovery and recycling.
Refrigerant that is recovered can be returned to: -
CORRECT ANSWER:
the same system or other systems owned by the same person without
restriction.
Refrigerant can not be called "reclaimed" unless it: - .
CORRECT ANSWER:
has been chemically analyzed and the refrigerant meets the ARI-700 standard.
What statement is true about an azeotropic refrigerant mixture? –
CORRECT ANSWER:
It is a mixture that acts like a single-component refrigerant over its entire range.
Chlorofluorocarbos (CFCs) and hydrochlorofluorocarbons (HCFCs) have which
of the following in common? –
CORRECT ANSWER:
It is a mixture that acts like a single-component refrigerant over its entire range.
,To scrap a disposable cylinder, the internal cylinder pressure should be
reduced to at least: -
CORRECT ANSWER:
0 psig.
The EPA can require a technician to demonstrate their ability to perform proper
procedures for recovering and/or recycling refrigerant. Failure to demonstrate
competency can result in: -
CORRECT ANSWER:
revocation of the technicians certification.
What characteristic(s) of CFCs make them more likely to reach the stratosphere
than most other compounds containing chlorine? –
CORRECT ANSWER:
Refrigerants that contain chlorine but not hydrogen are so stable that they do
not break down in the lower atmosphere after being released. The chlorine or
bromine reacts with the ozone, causing it to change back to oxygen, thus
destroying the ozone layer.
A system is considered dehydrated when: -
CORRECT ANSWER:
the vacuum indicator shows you have reached and held the required finished
vacuum.
Disposable refrigerant containers are used for ______
CORRECT ANSWER:
virgin refrigerant
Which refrigerant is an HCFC? –
CORRECT ANSWER:
R-123, R-124, R-22
Manifold gauge sets are often color coded, when this is done, the high pressure
gauge is color coded: -
CORRECT ANSWER:
Red.
,In general, blended refrigerants should be charged: -
CORRECT ANSWER:
as a liquid.
Blended refrigerants leak from a system: -
CORRECT ANSWER:
in uneven amounts due to different vapor pressures.
Which of the following gases help form the earth's protective shield? –
CORRECT ANSWER:
Stratospheric Ozone
In a refrigerant system, the device that changes a low pressure vapor to a high
pressure vapor is the:
CORRECT ANSWER:
- compressor.
Data shows that chlorine in the stratosphere comes mainly from CFCs rather
than from natural sources such as volcanoes because:
CORRECT ANSWER:
- The rise in the amount of chlorine in the stratosphere matches the rise in the
amount of fluorine, which has different natural sources than chlorine; The rise in
the amount of chlorine in the stratosphere matches the rise in CFC emissions;
Air samples taken from the stratosphere over erupting volcanoes show that
volcanoes contribute a small quantity of chlorine to the stratosphere when
compared to CFCs;
Which atom of the CFC molecule causes ozone depletion?
CORRECT ANSWER:
- chlorine
The ozone layer protects the earth from:
CORRECT ANSWER:
- ultraviolet radiation from the sun.
, When using with any solvent, cleaner, chemical or refrigerant, you should
review:
CORRECT ANSWER:
- material safety data sheets.
An award of up to what amount may be paid to a person supplying information
that leads to a penalty against a technician who is intentionally venting?
CORRECT ANSWER:
- 10,000
The Montreal Protocol is:
CORRECT ANSWER:
- a treaty among nations that controls production of CFCs and HCFCs.
Which refrigerant is an HCFC?
CORRECT ANSWER:
- R-123, R-22, R-124
What is one of the most serious results of damage to the ozone layer?
CORRECT ANSWER:
- increases in human skin cancer
Of the refrigerants listed below, which has the lowest ozone depletion potential
(ODP)?
CORRECT ANSWER:
- R-22
To determine the maximum allowable pressure to use when checking a system,
check:
CORRECT ANSWER:
- the design pressure on the equipment nameplate
Ozone depletion potential, or "ODP," is:
CORRECT ANSWER:
- A measure of the ability of CFCs and HCFCs to destroy ozone.
Questions & Answers & HVAC Exam Prep| Graded A+
,Verified and Updated | Frequently Most Tested
Questions | Latest Exam and Brand new Version!!!
Refrigeration technicians who violate the Clean Air Act can: -
CORRECT ANSWER:
Lose their EPA certification, be fined, be required to appear in Federal court.
After 1995, any supplies of CFC refrigerants to service existing units in the USA
can only come from: -
CORRECT ANSWER:
recovery and recycling.
Refrigerant that is recovered can be returned to: -
CORRECT ANSWER:
the same system or other systems owned by the same person without
restriction.
Refrigerant can not be called "reclaimed" unless it: - .
CORRECT ANSWER:
has been chemically analyzed and the refrigerant meets the ARI-700 standard.
What statement is true about an azeotropic refrigerant mixture? –
CORRECT ANSWER:
It is a mixture that acts like a single-component refrigerant over its entire range.
Chlorofluorocarbos (CFCs) and hydrochlorofluorocarbons (HCFCs) have which
of the following in common? –
CORRECT ANSWER:
It is a mixture that acts like a single-component refrigerant over its entire range.
,To scrap a disposable cylinder, the internal cylinder pressure should be
reduced to at least: -
CORRECT ANSWER:
0 psig.
The EPA can require a technician to demonstrate their ability to perform proper
procedures for recovering and/or recycling refrigerant. Failure to demonstrate
competency can result in: -
CORRECT ANSWER:
revocation of the technicians certification.
What characteristic(s) of CFCs make them more likely to reach the stratosphere
than most other compounds containing chlorine? –
CORRECT ANSWER:
Refrigerants that contain chlorine but not hydrogen are so stable that they do
not break down in the lower atmosphere after being released. The chlorine or
bromine reacts with the ozone, causing it to change back to oxygen, thus
destroying the ozone layer.
A system is considered dehydrated when: -
CORRECT ANSWER:
the vacuum indicator shows you have reached and held the required finished
vacuum.
Disposable refrigerant containers are used for ______
CORRECT ANSWER:
virgin refrigerant
Which refrigerant is an HCFC? –
CORRECT ANSWER:
R-123, R-124, R-22
Manifold gauge sets are often color coded, when this is done, the high pressure
gauge is color coded: -
CORRECT ANSWER:
Red.
,In general, blended refrigerants should be charged: -
CORRECT ANSWER:
as a liquid.
Blended refrigerants leak from a system: -
CORRECT ANSWER:
in uneven amounts due to different vapor pressures.
Which of the following gases help form the earth's protective shield? –
CORRECT ANSWER:
Stratospheric Ozone
In a refrigerant system, the device that changes a low pressure vapor to a high
pressure vapor is the:
CORRECT ANSWER:
- compressor.
Data shows that chlorine in the stratosphere comes mainly from CFCs rather
than from natural sources such as volcanoes because:
CORRECT ANSWER:
- The rise in the amount of chlorine in the stratosphere matches the rise in the
amount of fluorine, which has different natural sources than chlorine; The rise in
the amount of chlorine in the stratosphere matches the rise in CFC emissions;
Air samples taken from the stratosphere over erupting volcanoes show that
volcanoes contribute a small quantity of chlorine to the stratosphere when
compared to CFCs;
Which atom of the CFC molecule causes ozone depletion?
CORRECT ANSWER:
- chlorine
The ozone layer protects the earth from:
CORRECT ANSWER:
- ultraviolet radiation from the sun.
, When using with any solvent, cleaner, chemical or refrigerant, you should
review:
CORRECT ANSWER:
- material safety data sheets.
An award of up to what amount may be paid to a person supplying information
that leads to a penalty against a technician who is intentionally venting?
CORRECT ANSWER:
- 10,000
The Montreal Protocol is:
CORRECT ANSWER:
- a treaty among nations that controls production of CFCs and HCFCs.
Which refrigerant is an HCFC?
CORRECT ANSWER:
- R-123, R-22, R-124
What is one of the most serious results of damage to the ozone layer?
CORRECT ANSWER:
- increases in human skin cancer
Of the refrigerants listed below, which has the lowest ozone depletion potential
(ODP)?
CORRECT ANSWER:
- R-22
To determine the maximum allowable pressure to use when checking a system,
check:
CORRECT ANSWER:
- the design pressure on the equipment nameplate
Ozone depletion potential, or "ODP," is:
CORRECT ANSWER:
- A measure of the ability of CFCs and HCFCs to destroy ozone.
