True or False: Spot weld connections are permitted when connecting ducts.

The correct understanding is that spot weld connections are generally not permitted when connecting ducts in commercial cooking operations, as outlined by NFPA 96. The standard emphasizes the necessity for durable, robust connections that can withstand the operational stresses and high temperatures typically present in commercial cooking environments.

Welds that are not continuous can lead to weak points in the duct system, potentially leading to failures that can compromise the integrity of the ventilation system. Reliable connections are crucial for maintaining safety and efficiency, as any failures could result in fire hazards, smoke leaks, or other operational issues. Therefore, the prohibition of spot welds ensures that all duct connections meet the required standards for safety and performance under typical use conditions.