EPA 608 Core practice test Exam || Most Recent Exam
2026/2027 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Newest Exam | Just Released!!
Which ASHRAE classification means slightly flammable -
ANSWER -A2L
Disposable cylinders are only used with what type of
refrigerant? - ANSWER -
Virgin
refrigerant
Recovery cylinder must not be filled above _____% of its
capacity by weight -
ANSWER -
80
Recovery cylinders must be hydrostatically tested and date
stamped every how
many years? -
ANSWER -5
When pressuring a system with nitrogen you should -
ANSWER -Charge it
through a
regulator
, Insert a relief valve downstream line from the
pressure regulator
Never install in
series
Never pressurize a system with - ANSWER -Oxygen or
compressed air
It is Critical to inspect Schrader valve for? - ANSWER -Leaks
bends cracks
When moisture is present in a refrigeration system, it will react
with the refrigerant and the oil to form ____. - ANSWER -
Hydrochloric and hydrofluoric acid
Does the EPA require leak repair for small appliances? -
ANSWER -No
furnace - ANSWER -the heating capacity of an HVAC system
starts with the furnace. it represents the heart, pumping
warmth to all the parts of your home through the ventilation. it
takes up a lot of space & is Usually located in a basement or
tucked away in a front hall closet
heat exchanger - ANSWER -The heat exchanger is not part of
the furnace. It's located inside the furnace, but the heat
exchanger has its own capabilities. It adds heat to the
incoming air from the combustion chamber.
2026/2027 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Newest Exam | Just Released!!
Which ASHRAE classification means slightly flammable -
ANSWER -A2L
Disposable cylinders are only used with what type of
refrigerant? - ANSWER -
Virgin
refrigerant
Recovery cylinder must not be filled above _____% of its
capacity by weight -
ANSWER -
80
Recovery cylinders must be hydrostatically tested and date
stamped every how
many years? -
ANSWER -5
When pressuring a system with nitrogen you should -
ANSWER -Charge it
through a
regulator
, Insert a relief valve downstream line from the
pressure regulator
Never install in
series
Never pressurize a system with - ANSWER -Oxygen or
compressed air
It is Critical to inspect Schrader valve for? - ANSWER -Leaks
bends cracks
When moisture is present in a refrigeration system, it will react
with the refrigerant and the oil to form ____. - ANSWER -
Hydrochloric and hydrofluoric acid
Does the EPA require leak repair for small appliances? -
ANSWER -No
furnace - ANSWER -the heating capacity of an HVAC system
starts with the furnace. it represents the heart, pumping
warmth to all the parts of your home through the ventilation. it
takes up a lot of space & is Usually located in a basement or
tucked away in a front hall closet
heat exchanger - ANSWER -The heat exchanger is not part of
the furnace. It's located inside the furnace, but the heat
exchanger has its own capabilities. It adds heat to the
incoming air from the combustion chamber.
