Test | Nicet Level 3 Fire Alarm Practice

A) 70% of all spaces must achieve an STI (Speech Transmission Index) of 0.70 or higher. B) The system must be tested for intelligibility in all occupied spaces. C) Intelligibility testing is only required for auditoriums and atriums. D) Voice systems do not require intelligibility testing if they use pre-recorded messages.

A) Approve the submittal because 16 VDC is within the listed range. B) Reject the submittal and require a redesign because the design margin is insufficient. C) Issue a field change order to replace the power supply. D) Ignore it because voltage drop calculations are often inaccurate. nicet level 3 fire alarm practice test

B. NFPA 72 21.4.4 requires a delay of up to 30 seconds for agent release systems to allow for evacuation, unless the AHJ determines that a delay would increase the hazard. Cross-zoning is a design approach but not a requirement by NFPA 72 alone. Question 5 (Project Management) A contractor submits a shop drawing showing a notification appliance circuit (NAC) with 25 strobes. Your voltage drop calculation shows the last strobe will receive 16 VDC, but the strobe’s listed voltage range is 16 to 33 VDC. The specification requires a 20% safety margin above the minimum. As the Level 3 designer, what is your most appropriate action? A) 70% of all spaces must achieve an