EPA 608 UNIVERSAL
QUESTIONS WITH
DETAILED VERIFIED
ANSWERS AND
RATIONALES EXAM
QUESTIONS WILL COME
FROM HERE (100%
CORRECT ANSWERS A+
GRADED
Total: 244 Questions
Section 1: Core (Questions 1-70)
1. As technicians, we must stay up to date on which type of laws?
A) Federal laws only
B) State laws only
C) Local laws only
,D) Federal, state, and local laws
Answer: D) Federal, state, and local laws
Rationale: HVAC technicians must comply with all applicable regulations at every level
of government. While Section 608 of the Clean Air Act is federal law, state and local
jurisdictions may have additional or stricter requirements. Failure to follow any
applicable regulation can result in penalties .
2. For Universal Certification, how many questions will you receive on the
exam?
A) 50
B) 75
C) 100
D) 125
Answer: C) 100
Rationale: The Universal Certification exam consists of 100 total questions: 25
Core questions plus 25 questions for each of the three types (Type I, Type II, and
Type III). Technicians seeking certification for only one specialty will take 50 questions
(25 Core + 25 for their specific type) .
3. What is the passing grade for all EPA Section 608 certifications?
A) 60%
B) 70%
C) 75%
,D) 80%
Answer: B) 70%
Rationale: To pass any EPA 608 certification exam (Core, Type I, Type II, Type III, or
Universal), a technician must correctly answer at least 70% of the questions in each
section. For a 25-question section, this means getting at least 18 questions correct
.
4. True or False: Once you pass the EPA exam, the regulations you learn will
never change.
A) True
B) False
Answer: B) False
Rationale: Environmental regulations, refrigerant phase-out schedules, and EPA
requirements evolve over time. Technicians must stay current with changes through
continuing education, industry updates, and periodic recertification updates.
Regulations that were in effect at the time of passing may be amended or
replaced .
5. Do natural events like volcanic eruptions contribute to chlorine in the
stratosphere?
A) Yes, and they are the primary source
B) Yes, but they are not the primary source
C) No, only human activities release chlorine
D) No, volcanic eruptions release sulfur, not chlorine
Answer: B) Yes, but they are not the primary source
, Rationale: While natural events such as volcanic eruptions do release some
chlorine compounds into the atmosphere, the primary source of chlorine in the
stratosphere is human-made chlorofluorocarbons (CFCs) and
hydrochlorofluorocarbons (HCFCs) used as refrigerants, solvents, and propellants
.
6. True or False: Ground-level ozone is what reflects and absorbs harmful UV
rays from the sun.
A) True
B) False
Answer: B) False
Rationale: This statement is false. The ozone that protects Earth from harmful UV
radiation is located in the stratosphere, approximately 10-30 miles above the Earth's
surface. Ground-level ozone (tropospheric ozone) is a pollutant and a component of
smog that can harm human health and vegetation .
7. In which way does ozone depletion affect humans?
A) Increased risk of respiratory illness
B) Increased risk of skin cancer and cataracts
C) Increased risk of cardiovascular disease
D) Increased risk of food poisoning
Answer: B) Increased risk of skin cancer and cataracts
Rationale: Stratospheric ozone depletion allows more harmful ultraviolet B (UV-B)
radiation to reach Earth's surface. Prolonged exposure to UV-B radiation is linked to
increased rates of skin cancer (including melanoma), cataracts, and suppression of the
immune system in humans .
QUESTIONS WITH
DETAILED VERIFIED
ANSWERS AND
RATIONALES EXAM
QUESTIONS WILL COME
FROM HERE (100%
CORRECT ANSWERS A+
GRADED
Total: 244 Questions
Section 1: Core (Questions 1-70)
1. As technicians, we must stay up to date on which type of laws?
A) Federal laws only
B) State laws only
C) Local laws only
,D) Federal, state, and local laws
Answer: D) Federal, state, and local laws
Rationale: HVAC technicians must comply with all applicable regulations at every level
of government. While Section 608 of the Clean Air Act is federal law, state and local
jurisdictions may have additional or stricter requirements. Failure to follow any
applicable regulation can result in penalties .
2. For Universal Certification, how many questions will you receive on the
exam?
A) 50
B) 75
C) 100
D) 125
Answer: C) 100
Rationale: The Universal Certification exam consists of 100 total questions: 25
Core questions plus 25 questions for each of the three types (Type I, Type II, and
Type III). Technicians seeking certification for only one specialty will take 50 questions
(25 Core + 25 for their specific type) .
3. What is the passing grade for all EPA Section 608 certifications?
A) 60%
B) 70%
C) 75%
,D) 80%
Answer: B) 70%
Rationale: To pass any EPA 608 certification exam (Core, Type I, Type II, Type III, or
Universal), a technician must correctly answer at least 70% of the questions in each
section. For a 25-question section, this means getting at least 18 questions correct
.
4. True or False: Once you pass the EPA exam, the regulations you learn will
never change.
A) True
B) False
Answer: B) False
Rationale: Environmental regulations, refrigerant phase-out schedules, and EPA
requirements evolve over time. Technicians must stay current with changes through
continuing education, industry updates, and periodic recertification updates.
Regulations that were in effect at the time of passing may be amended or
replaced .
5. Do natural events like volcanic eruptions contribute to chlorine in the
stratosphere?
A) Yes, and they are the primary source
B) Yes, but they are not the primary source
C) No, only human activities release chlorine
D) No, volcanic eruptions release sulfur, not chlorine
Answer: B) Yes, but they are not the primary source
, Rationale: While natural events such as volcanic eruptions do release some
chlorine compounds into the atmosphere, the primary source of chlorine in the
stratosphere is human-made chlorofluorocarbons (CFCs) and
hydrochlorofluorocarbons (HCFCs) used as refrigerants, solvents, and propellants
.
6. True or False: Ground-level ozone is what reflects and absorbs harmful UV
rays from the sun.
A) True
B) False
Answer: B) False
Rationale: This statement is false. The ozone that protects Earth from harmful UV
radiation is located in the stratosphere, approximately 10-30 miles above the Earth's
surface. Ground-level ozone (tropospheric ozone) is a pollutant and a component of
smog that can harm human health and vegetation .
7. In which way does ozone depletion affect humans?
A) Increased risk of respiratory illness
B) Increased risk of skin cancer and cataracts
C) Increased risk of cardiovascular disease
D) Increased risk of food poisoning
Answer: B) Increased risk of skin cancer and cataracts
Rationale: Stratospheric ozone depletion allows more harmful ultraviolet B (UV-B)
radiation to reach Earth's surface. Prolonged exposure to UV-B radiation is linked to
increased rates of skin cancer (including melanoma), cataracts, and suppression of the
immune system in humans .
