CFPS Exam Dumps : Certified Fire Protection Specialist (CFPS)

Fire alarm systems audible appliances ratings are usually stated as a sound pressure level (SPL) at 10 ft (3.05 m) from the appliance. The SPL is measured in decibels (dB) and indicates the loudness of the sound produced by the appliance. The SPL at 10 ft (3.05 m) is used as a standard reference point for comparing different audible appliances and for designing fire alarm systems to meet the required audibility levels.References:

• NFPA 72: National Fire Alarm and Signaling Code, 2019 Edition, Section 18.4.3.11
• Fire Protection Handbook, 20th Edition, Volume 1, Chapter 7, Section 7.8.2.12

Class 3 unstable reactive gas is defined as a material that in itself is capable of detonation or explosive decomposition or reaction at normal temperatures and pressures with a strong initiating source or if heated under confinement. This class of gas readily undergoes violent chemical change at elevated temperatures and pressures.

References:NFPA 55: Compressed Gases and Cryogenic Fluids Code, 2016 Edition, Section 3.3.51.14.3;International Fire Code, 2015 Edition, Appendix E, Section E102.1.1

According to NFPA 400, Table 5.2.1.1.3, the maximum allowable quantity (MAQ) of a nonliquified oxidizing gas per control area in an unsprinklered area is 2000 ft3 (56 m3) when stored in a gas cabinet. This quantity can be increased by 100% if the area is sprinklered or by 300% if the area is also provided with a gas detection system. A gas cabinet is a ventilated enclosure for the storage of one or more compressed gas containers that provides a method of control for potential leakage or fire exposure hazards [NFPA 400, 3.3.32].References:NFPA 400, Table 5.2.1.1.3;NFPA 400, 3.3.32;NFPA 400, 5.2.1.1.3.1;NFPA 400, 5.2.1.1.3.2.