EPA 608 (CORE) Exam QUESTIONS AND
VERIFIED CORRECT ANSWERS
GRADED A+ [LATEST 2026-2027] 100%
GUARANTEED
When moisture exists in an operating system, what is most likely to occur? - CORRECT ANSWER-
Acid will form.
What factor(s) affects the speed of evacuation? - CORRECT ANSWER-1) The size of the
equipment being evacuated.
2)The ambient temperature.
3) The amount of moisture in the system
A system is considered dehydrated when? - CORRECT ANSWER-The vacuum indicator shows you
have reached & held the required finished vacuum.
The over-evacuation of a system: - CORRECT ANSWER-Does not occur.
The size (capacity) of the vacuum pump & the size of the suction line used will determine what?
- CORRECT ANSWER-The length of dehydration time.
, A system is dehydrated to do what? - CORRECT ANSWER-Remove water & water vapor.
To obtain an accurate vacuum reading during system evacuation, the system vacuum gauge
should be located: - CORRECT ANSWER-As far from the vacuum pump as possible.
To scrap a disposable cylinder, the internal cylinder pressure should be reduced to at least
what? - CORRECT ANSWER-0 psig
Never use an open flame to heat a refrigerant tank because? - CORRECT ANSWER-1) It can
result in venting refrigerant to the atmosphere.
2)The tank may explode, causing serious injury to people nearby.
3) Refrigerant in the tank may decompose, forming a toxic material.
When operating refrigerant recovery or recycling equipment, the following precautions should
always be followed. - CORRECT ANSWER-1) Wear safety glasses.
2) Wear protective gloves.
3) Follow all safety precautions for the equipment.
The color code for approved refrigerant recovery cylinders is? - CORRECT ANSWER-Yellow tops
& gray bodies.
Containers designed "refillable" by DOT are used for transporting recovered pressurized
refrigerant to? - CORRECT ANSWER-To meet safety requirements.
VERIFIED CORRECT ANSWERS
GRADED A+ [LATEST 2026-2027] 100%
GUARANTEED
When moisture exists in an operating system, what is most likely to occur? - CORRECT ANSWER-
Acid will form.
What factor(s) affects the speed of evacuation? - CORRECT ANSWER-1) The size of the
equipment being evacuated.
2)The ambient temperature.
3) The amount of moisture in the system
A system is considered dehydrated when? - CORRECT ANSWER-The vacuum indicator shows you
have reached & held the required finished vacuum.
The over-evacuation of a system: - CORRECT ANSWER-Does not occur.
The size (capacity) of the vacuum pump & the size of the suction line used will determine what?
- CORRECT ANSWER-The length of dehydration time.
, A system is dehydrated to do what? - CORRECT ANSWER-Remove water & water vapor.
To obtain an accurate vacuum reading during system evacuation, the system vacuum gauge
should be located: - CORRECT ANSWER-As far from the vacuum pump as possible.
To scrap a disposable cylinder, the internal cylinder pressure should be reduced to at least
what? - CORRECT ANSWER-0 psig
Never use an open flame to heat a refrigerant tank because? - CORRECT ANSWER-1) It can
result in venting refrigerant to the atmosphere.
2)The tank may explode, causing serious injury to people nearby.
3) Refrigerant in the tank may decompose, forming a toxic material.
When operating refrigerant recovery or recycling equipment, the following precautions should
always be followed. - CORRECT ANSWER-1) Wear safety glasses.
2) Wear protective gloves.
3) Follow all safety precautions for the equipment.
The color code for approved refrigerant recovery cylinders is? - CORRECT ANSWER-Yellow tops
& gray bodies.
Containers designed "refillable" by DOT are used for transporting recovered pressurized
refrigerant to? - CORRECT ANSWER-To meet safety requirements.
