Supervision of Fire Alarm Systems S-95 Questions and Answers Graded A

Supervision of Fire Alarm Systems S-95 Questions and Answers Graded A Which duties can an S-95 Certificate of Fitness holder perform? Viisual Inspections Only - of fire alarm system components and smoke detectors What is the primary purpose of Fire Alarm Systems? To warn building occupants and transmit signals indicating a fire condition to the Fire Department via central station. What is a Fire Alarm signal? The signal initiated by a fire alarm initiating device such as a manual fire alarm pull station, smoke detector, water-flow switch, or any device in which their activation indicates presence of fire. What is a Supervisory Signal? A signal indicating that a system or device being monitored has been compromised or is in an abnormal state. Is the FDNY dispatched for Supervisory Signals? No. The Facility Manager should investigate and correct the supervisory condition indicated by the FACP. What is a Trouble Signal? A signal indicating the alarm system, transmitter, or communications path is wholly or partially out of service. What is the maximum number of minutes that routine handling should take?-- from receipt of trouble signal by central station until initiation of the investigation by telephone. FOUR minutes Is the FDNY dispatched for Trouble Signals? No. Trouble Signals aren't indicative of a fire condition. What is an Acknowledge Switch (ACK) ? This switch/button is used to acknowledge alarm, supervisory, or trouble conditions. Why is an Alarm Silence Switch helpful after an evacuation - while the source of alarm is being investigated? This switch/button silences audible and visual devices (sirens, bells, gongs) so it's easier for Emergency Responders to communicate. Which switch/button is pushed once an alarm condition is cleared? The System Reset Switch Smoke Detectors should be cleaned not less than: Once every six months How often should Analog Smoke Detectors be cleaned? One week from receipt of an indication that cleaning is needed. How often should Smoke Detectors be tested for smoke entry? Not less than once a year After activation, which type of heat detector self-restores? Which type doesn't? Fixed-Temperature heat detectors: Doesn't self -restore and requires replacement. Rate of Rise heat detectors: self-restore Fire Alarm Circuits' primary power source shouldn't generate electric power exceeding which voltage? 277/480 volts All abnormal conditions be investigated and noted where? A bound Log Book Accessibility Admitting close approach- not guarded by locked doors, elevation, etc. Alarm Notification Appliance A fire alarm system component (bell, light, etc.) that issues an audible, tactile, or visual alert. Annunciator A unit containing one or more indicator lamps, alphanumeric displays, etc. in which each indication provides status info about a circuit, condition, or location. ARCS (Auxiliary Radio Communication System) A wireless two-way building communication system for Fire Dept. use only. Initiating Device A system component that originates transmission of a change-of-state condition, such as in a smoke detector, manual fire alarm box, or supervisory switch. An alarm caused by mechanical failure, malfunction, improper installation, improper maintenance or an undetermined cause. Nuisance Alarm Plenum The open space that carries air between the ceilings and floor above. Single-Station Smoke Alarm One unit incorporating the detector, control equipment, and the alarm-sounding device - operated by power supply in the unit or obtained during installation. A single-or-multiple-station alarm responsive to smoke and not connected to a fire alarm system. Smoke Alarm A signal initiated by a fault in a monitored circuit or component. Trouble Signal An alarm signal for which a fire department response is not necessary. Unnecessary Alarm An alarm signal transmitted by a fire alarm system which failed to function due to improper installation/maintenance, malfunction, etc. Unwarranted Alarm