EPA 608 TEST FINAL EXAM2024/2025 NEWEST!! ACTUAL COMPLETE
ACCURATE REAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS
( VERIFIED ANSWERS) /ALREADY GRADED A+
What is the Montreal Protocol? - ANSWER -Treaty among
nations designed to protect the stratospheric ozone layer
When was the CFC phase out date? - ANSWER -December 31,
1995
What personal protective equipment
should you wear when handling
refrigerants? - ANSWER -Safety glasses, Butyl-
lined protective gloves, Safety shoes\
What is the safest rating of a refrigerant according to the
ASHRAE scale? - ANSWER -A-1 is considered
the safest refrigerant while
B-3 is the least safe
.Why should oxygen or compressed air never be used to test
leak a system? - ANSWER -Oxygen or
,compressed air, when mixed with
refrigerants, can cause
an
explosion
When using nitrogen to charge a system, what piece of
equipment should it be
charged through and where should a relief valve be located? -
ANSWER -Charge through a pressure regulator (make sure the
nitrogen
cylinder has a regulator on it) and insert a
relief valve downstream line from the
pressure regulator
Where can you find the appropriate test pressures for a
system? - ANSWER -Data plate on the low-side
pressure
valve
What are the two conditions to be aware of in observing relief
valves? - ANSWER -NOT to be installed in
series and be replaced if corrosion build-up is
found within the body of a relief valve
, What can happen to refrigerants if they are
exposed to direct flame or other
excessive heat? - ANSWER -Change into
toxic materials like phosgene gas
Before welding, cutting or brazing a refrigerant line, what
should be done? - ANSWER -Evacuate all
refrigerant
What chemicals does the Montreal Protocol control? -
ANSWER -a. chlorofluorocarbons (CFCs), halons,
b. carbon tetrachloride
c. methyl chloroform
d. All the above
In case of a major refrigerant leak, what actions should be
taken? - ANSWER -Immediately vacate and
ventilate the area or use
Self Contained
Breathing
Apparatus
(SCBA).
What types of cylinders can be used for
recovery and how can you visually
ACCURATE REAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS
( VERIFIED ANSWERS) /ALREADY GRADED A+
What is the Montreal Protocol? - ANSWER -Treaty among
nations designed to protect the stratospheric ozone layer
When was the CFC phase out date? - ANSWER -December 31,
1995
What personal protective equipment
should you wear when handling
refrigerants? - ANSWER -Safety glasses, Butyl-
lined protective gloves, Safety shoes\
What is the safest rating of a refrigerant according to the
ASHRAE scale? - ANSWER -A-1 is considered
the safest refrigerant while
B-3 is the least safe
.Why should oxygen or compressed air never be used to test
leak a system? - ANSWER -Oxygen or
,compressed air, when mixed with
refrigerants, can cause
an
explosion
When using nitrogen to charge a system, what piece of
equipment should it be
charged through and where should a relief valve be located? -
ANSWER -Charge through a pressure regulator (make sure the
nitrogen
cylinder has a regulator on it) and insert a
relief valve downstream line from the
pressure regulator
Where can you find the appropriate test pressures for a
system? - ANSWER -Data plate on the low-side
pressure
valve
What are the two conditions to be aware of in observing relief
valves? - ANSWER -NOT to be installed in
series and be replaced if corrosion build-up is
found within the body of a relief valve
, What can happen to refrigerants if they are
exposed to direct flame or other
excessive heat? - ANSWER -Change into
toxic materials like phosgene gas
Before welding, cutting or brazing a refrigerant line, what
should be done? - ANSWER -Evacuate all
refrigerant
What chemicals does the Montreal Protocol control? -
ANSWER -a. chlorofluorocarbons (CFCs), halons,
b. carbon tetrachloride
c. methyl chloroform
d. All the above
In case of a major refrigerant leak, what actions should be
taken? - ANSWER -Immediately vacate and
ventilate the area or use
Self Contained
Breathing
Apparatus
(SCBA).
What types of cylinders can be used for
recovery and how can you visually
