EPA CERTIFICATION EXAM
QUESTIONS & ANSWERS PASSED
ALREADY GRADED A+
Which Refrigerants contain the most chlorine? - Correct Answer ✔✔ CFC's
As of what date did it become unlawful to intentionally release Class 1 and Class 2
refrigerants to the atmosphere? - Correct Answer ✔✔ July 1, 1992
Which Refrigerants have the lowest zone depletion potential? - Correct Answer ✔✔
HFC's
The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the
stratosphere is: - Correct Answer ✔✔ Chlorine
Stratospheric ozone consists of: - Correct Answer ✔✔ Three oxygen atoms
Stratospheric ozone depletion is a _________ problem: - Correct Answer ✔✔ Global
The Gas in the stratosphere that protects us from ultraviolet radiation is: - Correct
Answer ✔✔ Ozone
Which refrigerant is a CFC? - Correct Answer ✔✔ R-12
Which refrigerant is an HCFC? - Correct Answer ✔✔ R-123 & R-22
Which refrigerant is an HFC? - Correct Answer ✔✔ R-134a
Which refrigerant contains no chlorine? - Correct Answer ✔✔ R-134a
The Molecule found in the stratosphere that indicates stratospheric ozone depletion is
taking place is: - Correct Answer ✔✔ Chlorine monoxide
The following actions would violate the clean air act (CAA): - Correct Answer ✔✔
Knowingly releasing Class 1 Class 2 substances
failing to keep or falsifying required records
failing to tech the required evacuation levels before opening a systems to the
atmosphere for service
One time (disposable) refrigerant cylinders are used for: - Correct Answer ✔✔ Virgin
refrigerant
, The rule of thumb for refilling approved cylinders is a maximum of _____ percent liquid?
- Correct Answer ✔✔ 80%
The time it takes to properly evacuate and dehydrate a system prior to charging with
refrigerant is determined by the: - Correct Answer ✔✔ Total volume of the system
Amount of non-condensibles (moisture) in the system
Ambient Temperature
A system that fails to hold a vacuum after the evacuation process: - Correct Answer ✔✔
May contain moisture
May have a leak
To recover refrigerant is to: - Correct Answer ✔✔ 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.
The process that reduces contaminate in used refrigerant by oil separation with single
and multiple passes through devices such as replaceable filter core driers, which
reduces moisture, acidity, and particulate matter is: - Correct Answer ✔✔ Recycling
The synthetic lubricant used with HCFC-based ternary blends is: - Correct Answer ✔✔
Alkyl benzene
R-134a is "drop-in" refrigerant for: - Correct Answer ✔✔ R-134a is not a Drop-in
refrigerant
The refrigerant condition and state entering the condenser of an air conditioner is a: -
Correct Answer ✔✔ Superheated Vapor
The condition and state entering the condenser of an air conditioner is a: - Correct
Answer ✔✔ Subcooled liquid
The component of an air conditioning system that changes a low pressure vapor to a
high pressure vapor is the: - Correct Answer ✔✔ Compressor
Refrigerant cylinders should be shipped - Correct Answer ✔✔ In the vertical upright
position
For the maintenance, service or repair of small appliances, recovery equipment
manufactured after ________ must be certified by an EPA approved organization? -
Correct Answer ✔✔ November 15, 1993
Which best describes the definition of Type 1 "small appliance" as defined by EPA? -
Correct Answer ✔✔ Systems manufactured, charged and hermetically sealed with five
(5) pounds or less of refrigerant
QUESTIONS & ANSWERS PASSED
ALREADY GRADED A+
Which Refrigerants contain the most chlorine? - Correct Answer ✔✔ CFC's
As of what date did it become unlawful to intentionally release Class 1 and Class 2
refrigerants to the atmosphere? - Correct Answer ✔✔ July 1, 1992
Which Refrigerants have the lowest zone depletion potential? - Correct Answer ✔✔
HFC's
The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the
stratosphere is: - Correct Answer ✔✔ Chlorine
Stratospheric ozone consists of: - Correct Answer ✔✔ Three oxygen atoms
Stratospheric ozone depletion is a _________ problem: - Correct Answer ✔✔ Global
The Gas in the stratosphere that protects us from ultraviolet radiation is: - Correct
Answer ✔✔ Ozone
Which refrigerant is a CFC? - Correct Answer ✔✔ R-12
Which refrigerant is an HCFC? - Correct Answer ✔✔ R-123 & R-22
Which refrigerant is an HFC? - Correct Answer ✔✔ R-134a
Which refrigerant contains no chlorine? - Correct Answer ✔✔ R-134a
The Molecule found in the stratosphere that indicates stratospheric ozone depletion is
taking place is: - Correct Answer ✔✔ Chlorine monoxide
The following actions would violate the clean air act (CAA): - Correct Answer ✔✔
Knowingly releasing Class 1 Class 2 substances
failing to keep or falsifying required records
failing to tech the required evacuation levels before opening a systems to the
atmosphere for service
One time (disposable) refrigerant cylinders are used for: - Correct Answer ✔✔ Virgin
refrigerant
, The rule of thumb for refilling approved cylinders is a maximum of _____ percent liquid?
- Correct Answer ✔✔ 80%
The time it takes to properly evacuate and dehydrate a system prior to charging with
refrigerant is determined by the: - Correct Answer ✔✔ Total volume of the system
Amount of non-condensibles (moisture) in the system
Ambient Temperature
A system that fails to hold a vacuum after the evacuation process: - Correct Answer ✔✔
May contain moisture
May have a leak
To recover refrigerant is to: - Correct Answer ✔✔ 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.
The process that reduces contaminate in used refrigerant by oil separation with single
and multiple passes through devices such as replaceable filter core driers, which
reduces moisture, acidity, and particulate matter is: - Correct Answer ✔✔ Recycling
The synthetic lubricant used with HCFC-based ternary blends is: - Correct Answer ✔✔
Alkyl benzene
R-134a is "drop-in" refrigerant for: - Correct Answer ✔✔ R-134a is not a Drop-in
refrigerant
The refrigerant condition and state entering the condenser of an air conditioner is a: -
Correct Answer ✔✔ Superheated Vapor
The condition and state entering the condenser of an air conditioner is a: - Correct
Answer ✔✔ Subcooled liquid
The component of an air conditioning system that changes a low pressure vapor to a
high pressure vapor is the: - Correct Answer ✔✔ Compressor
Refrigerant cylinders should be shipped - Correct Answer ✔✔ In the vertical upright
position
For the maintenance, service or repair of small appliances, recovery equipment
manufactured after ________ must be certified by an EPA approved organization? -
Correct Answer ✔✔ November 15, 1993
Which best describes the definition of Type 1 "small appliance" as defined by EPA? -
Correct Answer ✔✔ Systems manufactured, charged and hermetically sealed with five
(5) pounds or less of refrigerant
