Comprehensive and Detailed Step-by-Step Explanation:
Spare Sprinkler Requirements:
According toNFPA 13 (Standard for the Installation of Sprinkler Systems), Section 6.2.9, the required number of spare sprinklers is based on the total number of sprinklers in the system:
0–300 sprinklers:Minimum of 6 spare sprinklers.
301–1,000 sprinklers:Minimum of 12 spare sprinklers.
1,001–2,000 sprinklers:Minimum of 18 spare sprinklers.
Why 18 Spare Sprinklers are Required:
For a system containing1,500 sprinklers, the requirement falls within the range of1,001 to 2,000 sprinklers, mandating18 spare sprinklers.
Other Options Explained:
Option A (6) and Option B (12):Insufficient for 1,500 sprinklers.
Option D (24):Exceeds the required minimum.
Summary:A system with1,500 sprinklersrequires a minimum of18 spare sprinklers.
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