EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
A near azeotropic blend will contain:
Answer
One saturation pressure value
One high saturation pressure value
Two saturation pressure values that are close
Two saturation pressure values that have abig difference - ✔✔✔-Two saturation pressure
valves that are close
A recovery device has to achieve a 4-inch vacuum in all circumstances.
Select one:
True
False - ✔✔✔-False
A zeotropic blend will contain:
Answer
One saturation pressure value
One high saturation pressure value
Two saturation pressure values that are close
Two saturation pressure values that have a big difference - ✔✔✔-Two saturation pressure
values that have a big difference
Access fittings:
Answer
Need to be leak tested before recoveringrefrigerant
Are used to gain access to closed systems
Are used with window AC units
,EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
All of these - ✔✔✔-All of these
After being phased out, where can technicians obtain refrigerant to service equipment that
contains that refrigerant? - ✔✔✔-From recovered and reclaimed refrigerant.
After refrigerant is phased out, can a technician still service the equipment containing that
refrigerant? - ✔✔✔-YES
Alkylbenzene (AB) oil is used for systems with which of the following refrigerants? (Select all
that apply)
Answer
A. CFC
B. HCFC
C. HCFC blends
D. HFC - ✔✔✔-A, B, and C
All recovery devices need to be tested at a place called
AHRI Standard 740.
Select one:
True
False - ✔✔✔-False
Ammonia is safe to use because it is a natural refrigerant.
Select one:
True
False - ✔✔✔-False
,EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
An active recovery machine is required for all systems.
Passive recovery is a thing of the past.
Select one:
True
False - ✔✔✔-False
An ideal oil is best at handling only high temperatures and high pressures.
Select one:
True
False - ✔✔✔-False
An ideal oil is readily miscible with the refrigerant in the system.
Select one:
True
False - ✔✔✔-True
As environmental technicians, we must be up to date with which type of laws? - ✔✔✔-Federal,
State, and Local Laws
As the temperature of a liquid increases, what phase does it turn into? (Assume constant
pressure) - ✔✔✔-Vapor
At high temperatures, what do CFCs and HCFCs decompose to?
Answer
Hydrochloric and hydrofluoric acids
, EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
Hydrocarbon and hydrofluorocarbons
Chloric and fluoric acids
All of these - ✔✔✔-Hydrochloric and hydrofluoric acids
B2 refrigerants are more dangerous than which of the following? (Select all that apply)
Answer
A. B1
В. ВЗ
C. A1
D. A2 - ✔✔✔-A, C, and D
B2 refrigerants are safer than which one of the following?
Answer
A. B1
В. ВЗ
C. A2
D. A3 - ✔✔✔-B
Burning CFCs and HCFCs can:
Answer
Create toxic vapors that are harmful to inhale
Will produce phosgene gas
Result from cutting or welding pipes containing residual refrigerant
All of these - ✔✔✔-All of these
Version
A near azeotropic blend will contain:
Answer
One saturation pressure value
One high saturation pressure value
Two saturation pressure values that are close
Two saturation pressure values that have abig difference - ✔✔✔-Two saturation pressure
valves that are close
A recovery device has to achieve a 4-inch vacuum in all circumstances.
Select one:
True
False - ✔✔✔-False
A zeotropic blend will contain:
Answer
One saturation pressure value
One high saturation pressure value
Two saturation pressure values that are close
Two saturation pressure values that have a big difference - ✔✔✔-Two saturation pressure
values that have a big difference
Access fittings:
Answer
Need to be leak tested before recoveringrefrigerant
Are used to gain access to closed systems
Are used with window AC units
,EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
All of these - ✔✔✔-All of these
After being phased out, where can technicians obtain refrigerant to service equipment that
contains that refrigerant? - ✔✔✔-From recovered and reclaimed refrigerant.
After refrigerant is phased out, can a technician still service the equipment containing that
refrigerant? - ✔✔✔-YES
Alkylbenzene (AB) oil is used for systems with which of the following refrigerants? (Select all
that apply)
Answer
A. CFC
B. HCFC
C. HCFC blends
D. HFC - ✔✔✔-A, B, and C
All recovery devices need to be tested at a place called
AHRI Standard 740.
Select one:
True
False - ✔✔✔-False
Ammonia is safe to use because it is a natural refrigerant.
Select one:
True
False - ✔✔✔-False
,EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
An active recovery machine is required for all systems.
Passive recovery is a thing of the past.
Select one:
True
False - ✔✔✔-False
An ideal oil is best at handling only high temperatures and high pressures.
Select one:
True
False - ✔✔✔-False
An ideal oil is readily miscible with the refrigerant in the system.
Select one:
True
False - ✔✔✔-True
As environmental technicians, we must be up to date with which type of laws? - ✔✔✔-Federal,
State, and Local Laws
As the temperature of a liquid increases, what phase does it turn into? (Assume constant
pressure) - ✔✔✔-Vapor
At high temperatures, what do CFCs and HCFCs decompose to?
Answer
Hydrochloric and hydrofluoric acids
, EPA 608 Newest Exam 2025 – Questions and Correct Answers Grade A+ Latest
Version
Hydrocarbon and hydrofluorocarbons
Chloric and fluoric acids
All of these - ✔✔✔-Hydrochloric and hydrofluoric acids
B2 refrigerants are more dangerous than which of the following? (Select all that apply)
Answer
A. B1
В. ВЗ
C. A1
D. A2 - ✔✔✔-A, C, and D
B2 refrigerants are safer than which one of the following?
Answer
A. B1
В. ВЗ
C. A2
D. A3 - ✔✔✔-B
Burning CFCs and HCFCs can:
Answer
Create toxic vapors that are harmful to inhale
Will produce phosgene gas
Result from cutting or welding pipes containing residual refrigerant
All of these - ✔✔✔-All of these
