Which of the following refrigerants has the highest flammability, according to its Safety Group classification? 

A municipality which anticipates a maximum demand of 5000 gpm (18,925 lpm) during a large fire should be capable of providing such flow for a duration of: 

CASE STUDY: The building owner would like to install an automatic sprinkler system. The 15,000 ft2 (1394 m2) building consists of a single story joisted masonry building with a wooden roof. The ceiling height is 12 ft (3.6 m) with each unit having doors in the front and rear. The building has three tenants: Furniture maker, assembles furniture only (no cutting or sanding); Dry Cleaner with 3 professional washers and dryer’s irons and light sewing, and a book store. The building is located in a public protection class 3. Fire Hydrants are located 250 ft (76 m) from the building. The building is located in a neighborhood retail area. Based on the construction, occupancy, exposure and protection, what would you recommend for the sprinkler system hydraulic design? The following three questions will pertain to this case study. For the hazard classification, this building would be categorized as:

In aircraft hangars, primary fire-extinguishing capability affording some degree of aircraft protection can be provided by oscillating monitors that completely blanket the floor of the entire hangar with foam within ______ seconds of actuation. 

You are evaluating the storage arrangement to determine appropriate sprinkler system protection requirements. Which of the following is an important consideration when determining sprinkler system design requirements?