NICET WBSL Level II Practice Questions - NICET Water-Based Systems Layout Level II Exam

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A −10°F freezer warehouse stores frozen food and the owner wants the lowest practical probability of accidental water discharge into the freezer. Which system type best satisfies this requirement under NFPA 13 (2022)?

Single interlock preaction system Non-interlock preaction system Double interlock preaction system Antifreeze system using a listed solution

Correct Answer:

Double interlock preaction system

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