NFPA 10 Portable Fire Extinguishers
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1. Which standard primarily governs the selection, installation,
inspection, and maintenance of portable fire extinguishers in the
United States?
A. NFPA 72
B. NFPA 10
C. NFPA 13
D. NFPA 101
B. NFPA 10
NFPA 10 is the governing standard specifically for portable fire
extinguishers, including their selection, placement, inspection,
maintenance, and testing requirements in various occupancies.
2. What is the minimum frequency required for visual inspection of
portable fire extinguishers?
A. Monthly
B. Quarterly
,C. Annually
D. Every 6 months
A. Monthly
Portable fire extinguishers must be visually inspected at least once every
month to ensure accessibility, proper pressure, and overall operability.
3. Which class of fire involves energized electrical equipment?
A. Class A
B. Class B
C. Class C
D. Class D
C. Class C
Class C fires involve energized electrical equipment where non-conductive
extinguishing agents are required to prevent electrical shock hazards.
4. What type of fire extinguisher is appropriate for ordinary combustible
materials such as wood and paper?
A. Class B extinguisher
B. Class C extinguisher
C. Class A extinguisher
D. Class D extinguisher
C. Class A extinguisher
Class A extinguishers are designed for fires involving ordinary combustible
materials like wood, cloth, paper, and some plastics.
5. Which extinguishing agent is most appropriate for Class D fires
involving combustible metals?
A. Water
B. Carbon dioxide
,C. Dry chemical ABC
D. Special dry powder
D. Special dry powder
Class D fires require specialized dry powder agents that are designed to
safely suppress combustible metal fires without causing violent reactions.
6. What is the primary purpose of the pressure gauge on a fire
extinguisher?
A. To measure temperature
B. To indicate agent weight
C. To show operational pressure status
D. To control discharge rate
C. To show operational pressure status
The pressure gauge indicates whether the extinguisher is properly
pressurized and ready for use or requires service.
7. How often must maintenance on portable fire extinguishers generally
be performed?
A. Monthly
B. Every 6 months
C. Annually
D. Every 5 years
C. Annually
NFPA 10 requires that portable fire extinguishers undergo thorough
maintenance at least once a year to ensure reliability and functionality.
8. Which fire extinguisher rating would be most suitable for a kitchen
grease fire?
, A. Class A
B. Class B
C. Class K
D. Class C
C. Class K
Class K extinguishers are specifically designed for cooking oil and grease
fires commonly found in commercial kitchens.
9. What does the “A” rating on a fire extinguisher indicate?
A. Electrical fire capability
B. Metal fire capability
C. Effectiveness on ordinary combustibles
D. High-pressure rating
C. Effectiveness on ordinary combustibles
The “A” rating indicates suitability for ordinary combustible materials such
as wood and paper.
10. What is the minimum height requirement for mounting portable
extinguishers (top handle for most units)?
A. 3 feet
B. 5 feet
C. 6 feet
D. 8 feet
B. 5 feet
NFPA 10 generally requires extinguishers to be mounted so the top is not
more than 5 feet above the floor for accessibility.
11. What is the primary hazard of using water on a Class C fire?
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. Which standard primarily governs the selection, installation,
inspection, and maintenance of portable fire extinguishers in the
United States?
A. NFPA 72
B. NFPA 10
C. NFPA 13
D. NFPA 101
B. NFPA 10
NFPA 10 is the governing standard specifically for portable fire
extinguishers, including their selection, placement, inspection,
maintenance, and testing requirements in various occupancies.
2. What is the minimum frequency required for visual inspection of
portable fire extinguishers?
A. Monthly
B. Quarterly
,C. Annually
D. Every 6 months
A. Monthly
Portable fire extinguishers must be visually inspected at least once every
month to ensure accessibility, proper pressure, and overall operability.
3. Which class of fire involves energized electrical equipment?
A. Class A
B. Class B
C. Class C
D. Class D
C. Class C
Class C fires involve energized electrical equipment where non-conductive
extinguishing agents are required to prevent electrical shock hazards.
4. What type of fire extinguisher is appropriate for ordinary combustible
materials such as wood and paper?
A. Class B extinguisher
B. Class C extinguisher
C. Class A extinguisher
D. Class D extinguisher
C. Class A extinguisher
Class A extinguishers are designed for fires involving ordinary combustible
materials like wood, cloth, paper, and some plastics.
5. Which extinguishing agent is most appropriate for Class D fires
involving combustible metals?
A. Water
B. Carbon dioxide
,C. Dry chemical ABC
D. Special dry powder
D. Special dry powder
Class D fires require specialized dry powder agents that are designed to
safely suppress combustible metal fires without causing violent reactions.
6. What is the primary purpose of the pressure gauge on a fire
extinguisher?
A. To measure temperature
B. To indicate agent weight
C. To show operational pressure status
D. To control discharge rate
C. To show operational pressure status
The pressure gauge indicates whether the extinguisher is properly
pressurized and ready for use or requires service.
7. How often must maintenance on portable fire extinguishers generally
be performed?
A. Monthly
B. Every 6 months
C. Annually
D. Every 5 years
C. Annually
NFPA 10 requires that portable fire extinguishers undergo thorough
maintenance at least once a year to ensure reliability and functionality.
8. Which fire extinguisher rating would be most suitable for a kitchen
grease fire?
, A. Class A
B. Class B
C. Class K
D. Class C
C. Class K
Class K extinguishers are specifically designed for cooking oil and grease
fires commonly found in commercial kitchens.
9. What does the “A” rating on a fire extinguisher indicate?
A. Electrical fire capability
B. Metal fire capability
C. Effectiveness on ordinary combustibles
D. High-pressure rating
C. Effectiveness on ordinary combustibles
The “A” rating indicates suitability for ordinary combustible materials such
as wood and paper.
10. What is the minimum height requirement for mounting portable
extinguishers (top handle for most units)?
A. 3 feet
B. 5 feet
C. 6 feet
D. 8 feet
B. 5 feet
NFPA 10 generally requires extinguishers to be mounted so the top is not
more than 5 feet above the floor for accessibility.
11. What is the primary hazard of using water on a Class C fire?
