SC LP Gas Reseller Exam Study Guide
2026/2027 | Complete Practice Questions &
Verified Answers | South Carolina LP Gas
Certification Prep
SC LP GAS RESELLER EXAM STUDY GUIDE 2026/2027
Complete Practice Questions & Verified Answers | South Carolina LP Gas
Certification Prep
• Document Features: This guide contains 200 verified multiple-choice questions
with bolded correct answers, detailed EXPERT RATIONALE, and full A–E option
formatting — designed to mirror the real SC LP Gas Reseller certification exam
structure for maximum readiness.
• How to Study: Work through each question independently before checking the
answer, use the EXPERT RATIONALE to reinforce understanding, and revisit any
question you miss at least twice — mastery comes from understanding why, not
just what.
1. What is the chemical formula for liquefied petroleum gas (LP gas) in its
most common commercial form?
A) CH₄
B) C₂H₆
C) CO₂
D) H₂
E) C₃H₈
Correct Answer: E) C₃H₈ EXPERT RATIONALE: The most common commercial LP
gas is propane, which has the chemical formula C₃H₈. Propane is widely used in
residential, commercial, and agricultural applications.
,2. What is the specific gravity of propane vapor compared to air?
A) 0.5
B) 0.8
C) 1.0
D) 1.5
E) 2.0
Correct Answer: D) 1.5 EXPERT RATIONALE: Propane vapor is approximately 1.5
times heavier than air. This means it will sink to the lowest point and accumulate in
basements, pits, and low-lying areas, creating a potential explosion hazard.
3. In South Carolina, which agency is primarily responsible for regulating LP
gas dealers and resellers?
A) Department of Transportation
B) Environmental Protection Agency
C) South Carolina Office of State Fire Marshal
D) Department of Labor and Licensing
E) South Carolina Energy Office
Correct Answer: C) South Carolina Office of State Fire Marshal EXPERT
RATIONALE: The SC Office of State Fire Marshal has jurisdiction over LP gas regulations,
licensing, and enforcement in South Carolina under state law.
4. What is the flammable range of propane in air?
A) 1.0% to 7.0%
B) 2.15% to 9.6%
C) 3.0% to 12.5%
,D) 5.0% to 15.0%
E) 1.5% to 8.0%
Correct Answer: B) 2.15% to 9.6% EXPERT RATIONALE: Propane is flammable
when its concentration in air is between 2.15% and 9.6% by volume. Outside this range,
the mixture is either too lean or too rich to ignite.
5. What does NFPA stand for in the context of LP gas regulation?
A) National Fuel and Propane Association
B) National Fire Prevention Agency
C) National Fire Protection Association
D) North American Fuel and Propane Authority
E) National Fuel Policy Administration
Correct Answer: C) National Fire Protection Association EXPERT RATIONALE:
NFPA stands for the National Fire Protection Association, which publishes NFPA 58 — the
Liquefied Petroleum Gas Code — a primary standard governing LP gas storage,
handling, and distribution.
6. NFPA 58 is commonly referred to as:
A) The Propane Safety Act
B) The Liquefied Petroleum Gas Code
C) The Fuel Gas Installation Standard
D) The LP Gas Transportation Manual
E) The Compressed Gas Safety Code
Correct Answer: B) The Liquefied Petroleum Gas Code EXPERT RATIONALE:
NFPA 58 is the official LP Gas Code published by the National Fire Protection Association
and is adopted by South Carolina as the primary regulatory standard.
, 7. What minimum distance must a propane container of 500 gallons water
capacity maintain from a building's opening such as a window or door?
A) 5 feet
B) 7 feet
C) 10 feet
D) 15 feet
E) 20 feet
Correct Answer: C) 10 feet EXPERT RATIONALE: NFPA 58 requires that a 500-
gallon LP gas container be located at least 10 feet from any building opening (such as a
window, door, or vent) to prevent gas from entering the structure.
8. What is the maximum allowable filling level (percentage of water capacity)
for a propane container under normal conditions?
A) 72%
B) 75%
C) 80%
D) 85%
E) 90%
Correct Answer: C) 80% EXPERT RATIONALE: Propane containers must not be
filled beyond 80% of their water capacity to allow space for liquid expansion due to
temperature changes. This is referred to as the outage or ullage requirement.
9. What color are propane containers typically painted to help reflect heat?
A) Black
B) Red
2026/2027 | Complete Practice Questions &
Verified Answers | South Carolina LP Gas
Certification Prep
SC LP GAS RESELLER EXAM STUDY GUIDE 2026/2027
Complete Practice Questions & Verified Answers | South Carolina LP Gas
Certification Prep
• Document Features: This guide contains 200 verified multiple-choice questions
with bolded correct answers, detailed EXPERT RATIONALE, and full A–E option
formatting — designed to mirror the real SC LP Gas Reseller certification exam
structure for maximum readiness.
• How to Study: Work through each question independently before checking the
answer, use the EXPERT RATIONALE to reinforce understanding, and revisit any
question you miss at least twice — mastery comes from understanding why, not
just what.
1. What is the chemical formula for liquefied petroleum gas (LP gas) in its
most common commercial form?
A) CH₄
B) C₂H₆
C) CO₂
D) H₂
E) C₃H₈
Correct Answer: E) C₃H₈ EXPERT RATIONALE: The most common commercial LP
gas is propane, which has the chemical formula C₃H₈. Propane is widely used in
residential, commercial, and agricultural applications.
,2. What is the specific gravity of propane vapor compared to air?
A) 0.5
B) 0.8
C) 1.0
D) 1.5
E) 2.0
Correct Answer: D) 1.5 EXPERT RATIONALE: Propane vapor is approximately 1.5
times heavier than air. This means it will sink to the lowest point and accumulate in
basements, pits, and low-lying areas, creating a potential explosion hazard.
3. In South Carolina, which agency is primarily responsible for regulating LP
gas dealers and resellers?
A) Department of Transportation
B) Environmental Protection Agency
C) South Carolina Office of State Fire Marshal
D) Department of Labor and Licensing
E) South Carolina Energy Office
Correct Answer: C) South Carolina Office of State Fire Marshal EXPERT
RATIONALE: The SC Office of State Fire Marshal has jurisdiction over LP gas regulations,
licensing, and enforcement in South Carolina under state law.
4. What is the flammable range of propane in air?
A) 1.0% to 7.0%
B) 2.15% to 9.6%
C) 3.0% to 12.5%
,D) 5.0% to 15.0%
E) 1.5% to 8.0%
Correct Answer: B) 2.15% to 9.6% EXPERT RATIONALE: Propane is flammable
when its concentration in air is between 2.15% and 9.6% by volume. Outside this range,
the mixture is either too lean or too rich to ignite.
5. What does NFPA stand for in the context of LP gas regulation?
A) National Fuel and Propane Association
B) National Fire Prevention Agency
C) National Fire Protection Association
D) North American Fuel and Propane Authority
E) National Fuel Policy Administration
Correct Answer: C) National Fire Protection Association EXPERT RATIONALE:
NFPA stands for the National Fire Protection Association, which publishes NFPA 58 — the
Liquefied Petroleum Gas Code — a primary standard governing LP gas storage,
handling, and distribution.
6. NFPA 58 is commonly referred to as:
A) The Propane Safety Act
B) The Liquefied Petroleum Gas Code
C) The Fuel Gas Installation Standard
D) The LP Gas Transportation Manual
E) The Compressed Gas Safety Code
Correct Answer: B) The Liquefied Petroleum Gas Code EXPERT RATIONALE:
NFPA 58 is the official LP Gas Code published by the National Fire Protection Association
and is adopted by South Carolina as the primary regulatory standard.
, 7. What minimum distance must a propane container of 500 gallons water
capacity maintain from a building's opening such as a window or door?
A) 5 feet
B) 7 feet
C) 10 feet
D) 15 feet
E) 20 feet
Correct Answer: C) 10 feet EXPERT RATIONALE: NFPA 58 requires that a 500-
gallon LP gas container be located at least 10 feet from any building opening (such as a
window, door, or vent) to prevent gas from entering the structure.
8. What is the maximum allowable filling level (percentage of water capacity)
for a propane container under normal conditions?
A) 72%
B) 75%
C) 80%
D) 85%
E) 90%
Correct Answer: C) 80% EXPERT RATIONALE: Propane containers must not be
filled beyond 80% of their water capacity to allow space for liquid expansion due to
temperature changes. This is referred to as the outage or ullage requirement.
9. What color are propane containers typically painted to help reflect heat?
A) Black
B) Red
