Sprinkler Systems question with complete solution graded A+ already passed 2023

Sprinkler Systems question with complete solution graded A+ already passed 2023What is a wet-pipe system? - correct answer sprinkler systems with pipes permanently filled with water What if freezing was going to cause an issue in a sprinkler system? - correct answer Dry-pipe systems - water has to fill pipes when fire is detected Anti-freeze added to water in wet pipe systems What is a deluge system? - correct answer Have open heads on a dry-pipe system and a separate detection arrangement What must one consider when designing a sprinkler system? - correct answer The design area - For sufficient pressure and flow characteristics Hazard Classification List the different occupancy hazard classifications - correct answer Extra Light Hazard (ELH) - non-industrial occupancies where amount and combustibility of contents is low Ordinary Hazard (OH1, OH2, OH3, OH3S) - industrial occupancies dealing with mainly 'ordinary' combustible materials Extra High Hazard (EHH) - industrial occupancies dealing with highly flammable materials or materials in high piled storage The plate size of deflector plates affects? - correct answer Droplet size distribution Initial droplet velocity and direction What are typical values for the specific rated temperature and the minimum pressure for a water envelope to develop from a water orifice? - correct answer 68 C and 50 kPa