FDNY C92 Supervision of
Flammable/Combustible Liquids Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. What is the primary purpose of NFPA regulations regarding
flammable and combustible liquids?
To prevent fires and protect life and property
These regulations are designed to minimize the risk of fire,
explosions, and hazards associated with storing, handling, and
using flammable liquids.
2. Flammable liquids are classified as those having a flash point
below:
100°F (37.8°C)
Flash point is the temperature at which a liquid produces enough
vapor to ignite; flammable liquids have lower flash points than
combustible liquids.
3. Combustible liquids are generally those with a flash point:
At or above 100°F (37.8°C)
This higher flash point means they are less easily ignited than
flammable liquids but still pose a fire risk.
4. Which class of flammable liquid is the most volatile?
Class I
, Class I liquids have the lowest flash points and highest vapor
pressure, making them the most fire-prone.
5. What is the maximum allowable quantity of Class I liquids in a
control area without a permit?
60 gallons
This limit helps reduce the potential for large-scale fires in
controlled areas.
6. The term “flash point” refers to:
The lowest temperature at which a liquid produces enough
vapor to ignite
Understanding flash point is critical for safe storage and handling
of flammable liquids.
7. Which container type is typically used for transporting small
quantities of flammable liquids safely?
Approved safety cans
Safety cans are designed to limit spillage and control vapor
release.
8. The primary difference between Class I-A and Class I-B liquids is:
Their boiling points
Class I-A liquids have boiling points below 100°F, while Class I-B
liquids boil above 100°F but have flash points below 73°F.
9. What is the minimum distance a storage tank for flammable
liquids must be from a building?
25 feet
Proper spacing reduces risk to nearby structures in case of fire.
, 10. Flammable liquids should be stored:
In approved containers and cabinets
This prevents accidental ignition and limits the spread of fire.
11. Class II flammable liquids have flash points between:
100°F and 140°F
These liquids are less volatile than Class I but still pose significant
fire hazards.
12. What is the maximum height for a flammable liquid storage
cabinet?
5 feet
Limiting cabinet height helps maintain stability and reduces risk
during access.
13. What safety measure is critical when transferring flammable
liquids from one container to another?
Grounding and bonding
This prevents static electricity from igniting vapors during transfer.
14. Which of the following is a common fire suppression system
for flammable liquid storage?
Automatic sprinkler systems
Sprinklers help control or extinguish fires quickly before they
spread.
15. What signage is required for areas storing flammable
liquids?
“Flammable – Keep Fire Away” signs
Proper signage alerts personnel to potential hazards and promotes
safety.
Flammable/Combustible Liquids Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of NFPA regulations regarding
flammable and combustible liquids?
To prevent fires and protect life and property
These regulations are designed to minimize the risk of fire,
explosions, and hazards associated with storing, handling, and
using flammable liquids.
2. Flammable liquids are classified as those having a flash point
below:
100°F (37.8°C)
Flash point is the temperature at which a liquid produces enough
vapor to ignite; flammable liquids have lower flash points than
combustible liquids.
3. Combustible liquids are generally those with a flash point:
At or above 100°F (37.8°C)
This higher flash point means they are less easily ignited than
flammable liquids but still pose a fire risk.
4. Which class of flammable liquid is the most volatile?
Class I
, Class I liquids have the lowest flash points and highest vapor
pressure, making them the most fire-prone.
5. What is the maximum allowable quantity of Class I liquids in a
control area without a permit?
60 gallons
This limit helps reduce the potential for large-scale fires in
controlled areas.
6. The term “flash point” refers to:
The lowest temperature at which a liquid produces enough
vapor to ignite
Understanding flash point is critical for safe storage and handling
of flammable liquids.
7. Which container type is typically used for transporting small
quantities of flammable liquids safely?
Approved safety cans
Safety cans are designed to limit spillage and control vapor
release.
8. The primary difference between Class I-A and Class I-B liquids is:
Their boiling points
Class I-A liquids have boiling points below 100°F, while Class I-B
liquids boil above 100°F but have flash points below 73°F.
9. What is the minimum distance a storage tank for flammable
liquids must be from a building?
25 feet
Proper spacing reduces risk to nearby structures in case of fire.
, 10. Flammable liquids should be stored:
In approved containers and cabinets
This prevents accidental ignition and limits the spread of fire.
11. Class II flammable liquids have flash points between:
100°F and 140°F
These liquids are less volatile than Class I but still pose significant
fire hazards.
12. What is the maximum height for a flammable liquid storage
cabinet?
5 feet
Limiting cabinet height helps maintain stability and reduces risk
during access.
13. What safety measure is critical when transferring flammable
liquids from one container to another?
Grounding and bonding
This prevents static electricity from igniting vapors during transfer.
14. Which of the following is a common fire suppression system
for flammable liquid storage?
Automatic sprinkler systems
Sprinklers help control or extinguish fires quickly before they
spread.
15. What signage is required for areas storing flammable
liquids?
“Flammable – Keep Fire Away” signs
Proper signage alerts personnel to potential hazards and promotes
safety.
