What is the minimum fire extinguisher rating required for Class A fires in general construction areas according to OSHA?
Correct Answer
A) 2A
OSHA requires a minimum 2A rating for fire extinguishers protecting Class A fire hazards in construction areas. These extinguishers must be distributed so that travel distance to an extinguisher does not exceed 75 feet.
Why This Is the Correct Answer
OSHA 29 CFR 1926.150(c)(1)(i) specifically mandates that fire extinguishers for Class A fires in construction areas must have a minimum rating of 2A. This rating indicates the extinguisher's effectiveness against ordinary combustible materials like wood, paper, and fabric commonly found on construction sites. The 2A rating provides adequate fire suppression capability for typical construction fire hazards while maintaining portability and cost-effectiveness for contractors.
Why the Other Options Are Wrong
Option B: 10A
A 20A rating is far beyond OSHA's minimum requirement and would typically be used for industrial facilities with much higher fire loads than standard construction sites. This would be unnecessarily expensive and cumbersome for construction applications.
Option C: 4A
While a 4A rating would provide greater fire suppression capability, OSHA only requires a minimum of 2A for construction areas. Using 4A extinguishers would exceed the minimum requirement and increase costs unnecessarily.
Memory Technique
Think '2A = Too Easy' - OSHA makes it simple with just 2A minimum for construction Class A fires, paired with 75 feet maximum travel distance
Reference Hint
OSHA 29 CFR 1926.150 - Fire Protection, subsection (c) covering portable fire extinguishers
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