EPA 608 STUDY MATERIAL CORE TYPE 1 2
AND 3 ACTUAL PAPER SOLVED
QUESTIONS
◉ Blended refrigerant leak from a system:
Answer: In uneven amounts due to different vapor pressures
◉ Which of the following gases help form the earth's protective
shield
Answer: Stratospheric ozone
◉ In a refrigeration system the device that changes a low pressure
vapor to a high-pressure vapor is the:
Answer: Compressor
◉ Data shows that chlorine in the stratosphere comes mainly
from CFCs rather than from natural sources such as volcanoes
because:
Answer: All of the above
◉ Which atom of the CFC molecule causes ozone depletion
Answer: Chlorine
◉ The ozone layer protects the earth from:
,Answer: Ultraviolet radiation from the sun
◉ When using with any solvent, cleaner, chemical or refrigerant
you should review:
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
Answer: $10,000
◉ The Montreal protocol is:
Answer: A treaty among nations that controls production of CFCs
and HCFCs
◉ What is one of the most serious results of damage to the ozone
layer
Answer: Increases in human skin cancer
◉ Of the refrigerant listed below which has the lowest ozone
potential
Answer: R-134a
◉ To determine the maximum allowable pressure to use when
checking a system check:
, Answer: The design pressure on the equipment nameplate
◉ Ozone depletion potential or ODP is:
Answer: A measure of the ability of CFCs' and HCFCs' to destroy
ozone.
◉ An example of an HFC refrigerant is:
Answer: R-134a
◉ Whenever dry nitrogen from a portable cylinder is connected to
a system what item is of most importance in consideration of
safety
Answer: There is a relief valve in the downstream line from the
pressure regulator
◉ During servicing of a refrigeration system containing R-12 The
refrigerant must be:
Answer: Recovered
◉ Which safety precautions should always be followed
Answer: All of the above
◉ In a vapor compressor refrigeration system cooling occurs
when:
Answer: Refrigerant liquid turns to a vapor
AND 3 ACTUAL PAPER SOLVED
QUESTIONS
◉ Blended refrigerant leak from a system:
Answer: In uneven amounts due to different vapor pressures
◉ Which of the following gases help form the earth's protective
shield
Answer: Stratospheric ozone
◉ In a refrigeration system the device that changes a low pressure
vapor to a high-pressure vapor is the:
Answer: Compressor
◉ Data shows that chlorine in the stratosphere comes mainly
from CFCs rather than from natural sources such as volcanoes
because:
Answer: All of the above
◉ Which atom of the CFC molecule causes ozone depletion
Answer: Chlorine
◉ The ozone layer protects the earth from:
,Answer: Ultraviolet radiation from the sun
◉ When using with any solvent, cleaner, chemical or refrigerant
you should review:
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
Answer: $10,000
◉ The Montreal protocol is:
Answer: A treaty among nations that controls production of CFCs
and HCFCs
◉ What is one of the most serious results of damage to the ozone
layer
Answer: Increases in human skin cancer
◉ Of the refrigerant listed below which has the lowest ozone
potential
Answer: R-134a
◉ To determine the maximum allowable pressure to use when
checking a system check:
, Answer: The design pressure on the equipment nameplate
◉ Ozone depletion potential or ODP is:
Answer: A measure of the ability of CFCs' and HCFCs' to destroy
ozone.
◉ An example of an HFC refrigerant is:
Answer: R-134a
◉ Whenever dry nitrogen from a portable cylinder is connected to
a system what item is of most importance in consideration of
safety
Answer: There is a relief valve in the downstream line from the
pressure regulator
◉ During servicing of a refrigeration system containing R-12 The
refrigerant must be:
Answer: Recovered
◉ Which safety precautions should always be followed
Answer: All of the above
◉ In a vapor compressor refrigeration system cooling occurs
when:
Answer: Refrigerant liquid turns to a vapor
