Photoelectric detector - Study guides, Class notes & Summaries

Fire Inspector 1 Test Review Exterior walls and structural members that are of approved noncombustible or limited combustible materials and interior structural members constructed wholly or partly of wood are considered - Type III To protect steel structural components of a building, which of the following may be applied to protect the steel from heat? - Layers of gypsum board Curtain walls: - are nonbearing exterior walls Which of the following is a component in a required means ...

TFM 12 Questions and Answers Already Passed What does PLFA stand for? Power Limited Fire Alarm What does NPLFA stand for? Non-Power Limited Fire Alarm What material must NPLFA circuit conductors be made from? Solid or stranded copper What is a single station detector? Battery powered smoke detectors that do not communicate off premises. What is a multiple station detector? Mains powered smoke detectors with battery backup that are linked together, so that if one unit initiates, alarms in all...

TFM12 QUESTIONS WITH SOLUTIONS 2023 What is used to protect transformers or other devices supplied from power-supply conductors? A. An overcurrent device not rated over 20 Amperes. What does PLFA stand for? Power Limited Fire Alarm What does NPLFA stand for? Non-Power Limited Fire Alarm What material must NPLFA circuit conductors be made from? Solid or stranded copper What is a single station detector? Battery powered smoke alarms that do not communicate off pre...

Fire Protection Systems Final Exam Questions And Answers Graded A+ Photoelectric Detector The type of smoke detector that detects the visible products of combustion. Infrared Detector A detector that responds to the optical radiant energy of a fire in one of two non visible light spectrums Rate of Rise Detector This type of detector is designed for use in areas that have regular temperature changes and results in fewer false activations Fire Gas Detector Carbon monoxide and carbon diox...

The most significant hazard threatening industrial facilities is fire After every bomb threat call, a search is to be conducted. A search after receiving a bomb threat call will include, common areas, occupied areas and unoccupied areas. The most important counter-measure to the introduction of bombs on a facility is the control of entry of personnel and materials to that location. The emergency plan is tested at least once annually. A facility's data med...

S95 (Supervision of Fire Alarm System) Latest Version Already Graded A Accessibility Not guarded by locked doors, elevation Alarm notification appliance A fire alarm system component, such as a bell, horn, speaker, light, text display or vibration device that issues an audible, tactile, and/or visual alert Alarm signal A signal indicating an emergency requiring immediate action, such as a signal indicative of fire. Annunciator An unit containing one or more indicator lamps, alphanumeric displ...

Which condition should be pointed out to occupants during a fire safety survey? 979 a. Type 2 construction b. Void spaces in the attic c. Nonworking smoke detectors d. Presence of photovoltaic panels c. Nonworking smoke detectors On a preincident survey sketch or map, the locations of all: a. Fire lanes b. Fire hydrants c. Heavily traveled hallways d. Handicapped parking spaces b. Fire hydrants Brainpower Read More Previous Play Next Rewind 10 seconds Move forward...

TFM12 FAL NFPA 72 QUESTIONS AND ANSWERS GRADED A+ 2023 What 'type' shall general purpose wire be? What substitutions are permitted? Power Limited Fire Alarm (F.P.L.) C.M.P., F.P.L.P., C.M.R., F.P.L.R., and C.M.G. C.M. can be substituted (ALL TYPES) Can detectors be installed within an air duct system? Can they be used as a substitute for open area protection? Yes No When water flow occurs that is equal or greater than the flow of a single sprinkler, how quickly shall ...

What is the skin dose resulting in Early Transient Erythema? - ANS 2Gy What is the skin dose resulting in Temporary Epilation? - ANS 3Gy What is the skin dose resulting in Chronic Erythema (radiation burns)? - ANS 6Gy In spin echo imaging, which gradient is changed with every repetition? - ANS Phase encoding gradient is changed with each repetition (TR). What is the main determinant of CT hounsfield units? - ANS Linear attenuation coeffici...

Fire Alarm 3.1.1 Questions and Answers 100% Solved Which of the following systems is required to have standby power capable of operating the system for 15 minutes during alarm? a. Protected premises system. b. Emergency voice communications. c. Remote station system. d. Central station system. e. All of the above. b. Emergency voice communications NFPA 72-4.4.1.5.3(a), page 27 What are the fire alarm requirements for a single classroom remote building in a new educational occupancy that is...