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Exam CFI-I Topic 1 Question 92 Discussion

Actual exam question for NFPA's CFI-I exam
Question #: 92
Topic #: 1
A highly volatile liquid is best described as having a boiling point of

Suggested Answer: A Vote an answer

Comprehensive and Detailed Step-by-Step Explanation:
Definition of Highly Volatile Liquids:
A highly volatile liquid is defined as a liquid with a low boiling point, meaning it evaporates quickly and can create hazardous vapor concentrations.
Per NFPA 30 (Flammable and Combustible Liquids Code):
Liquids with a boiling point below 68°F (20°C) are considered highly volatile.
Why 68°F (20°C) Matters:
Liquids with such a low boiling point vaporize readily at room temperature, posing significant fire and explosion hazards.
Other Options Explained:
Option B (70°F), Option C (100°F), and Option D (Greater than 212°F):
These values correspond to less volatile or moderately volatile liquids.
Summary:
A highly volatile liquid is one with a boiling point less than 68°F (20°C) due to its rapid evaporation and fire risk.

by Ingram at Dec 27, 2025, 02:57 PM

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