Texas TFM02 NFPA 10 Class B Fire Extinguisher
Exam Prep: 200 Verified Q&A with Rationales,
Covering Installation, Maintenance, Agent
Selection, Travel Distances, and Hydrostatic Testing
for 2026/2027.
🔥 Installation, Placement & Travel Distances
1. An extinguisher weighing over 40 lbs should be
installed so the top is no more than ______ from
the ground.
• ☑VERIFIED ANSWER: 3.5 ft
• Rationale: This lower mounting height is for
safety, ensuring heavier units can be safely
handled and removed from their brackets.
2. Extinguishers weighing 40 lbs or less must be
installed so the top of the canister is no more than
______.
, • ☑VERIFIED ANSWER: 5 ft above the ground
• Rationale: Lighter extinguishers can be
mounted higher because they are easier for a
person to lift and carry.
3. What is the OSHA specified maximum travel
distance to a Class B extinguisher?
• ☑VERIFIED ANSWER: 50 ft
• Rationale: Class B fires (flammable liquids) can
spread rapidly, so a shorter travel distance is
required to reach an extinguisher quickly.
4. What is the OSHA specified maximum travel
distance for a Class A extinguisher?
• ☑VERIFIED ANSWER: 75 ft
• Rationale: Class A fires (ordinary combustibles)
generally spread slower, allowing for a longer
travel distance to an extinguisher.
5. Extinguishers must be installed at least ______
from the ground.
, • ☑VERIFIED ANSWER: 4 inches
• Rationale: This prevents the bottom of the
extinguisher from being damaged by moisture,
dirt, or corrosion from floor contact.
Inspection, Maintenance & Testing Intervals
6. Portable fire extinguishers need to be visually
inspected at least ______ according to 29 CFR
1910.157(e)(2).
• ☑VERIFIED ANSWER: Monthly
• Rationale: Monthly visual inspections ensure
the extinguisher is in its designated place, is not
damaged, and appears ready for use.
7. Dry chemical extinguishers that require a 12-
year hydrostatic test must be emptied for
maintenance procedures every ______.
• ☑VERIFIED ANSWER: 6 years
, • Rationale: NFPA 10 requires internal
maintenance on dry chemical extinguishers
every 6 years, during which they are emptied
and the agent is replaced.
8. Cartridge-operated water-based portable
extinguishers need hydrostatic testing every
______.
• ☑VERIFIED ANSWER: 5 years
• Rationale: These extinguishers operate at high
pressure and are subject to more potential
stress, necessitating more frequent testing.
9. When do stored-pressure type extinguishers
need an internal examination?
• ☑VERIFIED ANSWER: Never (internal
examination is not a standard requirement for
stored-pressure extinguishers as a separate
procedure; it's performed during maintenance
or hydrostatic testing).
Exam Prep: 200 Verified Q&A with Rationales,
Covering Installation, Maintenance, Agent
Selection, Travel Distances, and Hydrostatic Testing
for 2026/2027.
🔥 Installation, Placement & Travel Distances
1. An extinguisher weighing over 40 lbs should be
installed so the top is no more than ______ from
the ground.
• ☑VERIFIED ANSWER: 3.5 ft
• Rationale: This lower mounting height is for
safety, ensuring heavier units can be safely
handled and removed from their brackets.
2. Extinguishers weighing 40 lbs or less must be
installed so the top of the canister is no more than
______.
, • ☑VERIFIED ANSWER: 5 ft above the ground
• Rationale: Lighter extinguishers can be
mounted higher because they are easier for a
person to lift and carry.
3. What is the OSHA specified maximum travel
distance to a Class B extinguisher?
• ☑VERIFIED ANSWER: 50 ft
• Rationale: Class B fires (flammable liquids) can
spread rapidly, so a shorter travel distance is
required to reach an extinguisher quickly.
4. What is the OSHA specified maximum travel
distance for a Class A extinguisher?
• ☑VERIFIED ANSWER: 75 ft
• Rationale: Class A fires (ordinary combustibles)
generally spread slower, allowing for a longer
travel distance to an extinguisher.
5. Extinguishers must be installed at least ______
from the ground.
, • ☑VERIFIED ANSWER: 4 inches
• Rationale: This prevents the bottom of the
extinguisher from being damaged by moisture,
dirt, or corrosion from floor contact.
Inspection, Maintenance & Testing Intervals
6. Portable fire extinguishers need to be visually
inspected at least ______ according to 29 CFR
1910.157(e)(2).
• ☑VERIFIED ANSWER: Monthly
• Rationale: Monthly visual inspections ensure
the extinguisher is in its designated place, is not
damaged, and appears ready for use.
7. Dry chemical extinguishers that require a 12-
year hydrostatic test must be emptied for
maintenance procedures every ______.
• ☑VERIFIED ANSWER: 6 years
, • Rationale: NFPA 10 requires internal
maintenance on dry chemical extinguishers
every 6 years, during which they are emptied
and the agent is replaced.
8. Cartridge-operated water-based portable
extinguishers need hydrostatic testing every
______.
• ☑VERIFIED ANSWER: 5 years
• Rationale: These extinguishers operate at high
pressure and are subject to more potential
stress, necessitating more frequent testing.
9. When do stored-pressure type extinguishers
need an internal examination?
• ☑VERIFIED ANSWER: Never (internal
examination is not a standard requirement for
stored-pressure extinguishers as a separate
procedure; it's performed during maintenance
or hydrostatic testing).
