The provided texts are excerpts from various National Fire Protection Association (NFPA) standards related to fire safety and specifically focus on fire suppression systems and equipment. NFPA 10 addresses the use and maintenance of portable fire extinguishers, outlining criteria for selection, placement, and inspection, including requirements for Class K hazards and the limited use of halon agents. NFPA 13 concerns the installation of sprinkler systems, outlining guidelines for materials, dimensions, and installation techniques, including provisions for obstructions, storage configurations, and residential sprinkler systems. NFPA 20 delves into the operation and installation of fire pumps, covering types, installation requirements, and performance testing. NFPA 2001 focuses on clean agent fire extinguishing systems, providing design factors, concentration requirements, and application procedures for various agents. NFPA 72 covers fire alarm systems, detailing different types, communication pathways, detection methods, and system performance evaluations. The final document is an example of an applicant's failed journeyman sprinkler fitter examination and provides information on how to retake the exam.