ICC Commercial Building Inspector Practice Test

Which type of sprinklers is essential for large assembly occupancy?

1. Wet pipe

2. Dry pipe

3. Deluge

4. Pre-action

The correct answer is: Wet pipe

The most suitable type of sprinkler for large assembly occupancy is the wet pipe sprinkler system. This system is designed to be filled with water at all times, which allows for a rapid response to fire incidents. In large assembly areas, where a significant number of people gather and where the potential for fire to spread quickly is higher due to larger open spaces and increased fuel loads, having immediate access to water is crucial for effective fire suppression. Wet pipe systems are the most common type of sprinkler systems used because they are simple and highly effective for areas where the risk of freezing is minimal. The constant presence of water allows for quick activation of the sprinklers upon detection of heat from a fire. This fast action can help control or extinguish a fire before it causes extensive damage or poses a significant risk to life safety. Other types of sprinkler systems, such as dry pipe, deluge, and pre-action systems, have their specific applications and benefits. For example, dry pipe systems are used in areas where freezing temperatures may be a concern, while deluge systems are designed for high-hazard environments and discharge water over a large area simultaneously. Pre-action systems combine features of both wet and dry systems and require a two-step activation process, which may not be as immediate as