Photoelectric detector - Study guides, Class notes & Summaries

Fire Officer I EXAM LATEST ACTUAL EXAM QUESTIONS AND ANSWERS (100% VERIFIED ANSWERS) | GRADED A+. What are the 5 types of building construction? - CORRECT ANSWER Type 1- fire resistive Type 2- non combustible Type 3- ordinary Type 4- heavy timber Type 5- wood frame -Type 1 and 2 are non combustible -Type 3, 4, and 5 are combustible Fire drills in schools - CORRECT ANSWER Done monthly, different times of day Rough drawing of building is called - CORRECT ANSWER Field sketch Microwave ...

Nuclear Medicine Instrumentation Exam Questions with 100% Correct Answers The amount of light generated by a sodium iodide crystal is directly related to the: A. photon energy absorbed in the crystal B. Diameter of the crystal C. Thickness of the crystal D. Age of the crystal - answerA. photon energy absorbed in the crystal A NaI (Tl) scintillation detector provides an output signal from the photo-multiplier tube that is proportional in amplitude to the amount of energy absorbed in the c...

Fire Detection, Suppression, and Smoke Control Systems Chapter 26 with Complete Solutions 1. How can an ionization smoke detector be identified? A) Low-profile, pancake shape B) Label stating that it contains radioactive material C) Lack of air vents D) Label stating that it contains carcinogenic material B) Label stating that it contains radioactive material 2. How is the tamper alarm on a pull-station connected to the fire alarm system? A) Through shared wiring B) Via remote m...

Does a fire hood system and a kitchen need to be monitored by the fire alarm system? - Yes What does P.L.F.A stand for? - Power Limited Fire Alarm What does N.P.L.F.A stand for? - Non-Power Limited Fire Alarm What is the difference between P.F.L.A and N.P.F.L.A? - an N.P.L.F.A can operate at up to 600v, and the power output isn't limited a P.L.F.A has the voltage and power limited by a listed power source. What material must N.P.F.L.A circuit conductors be made from? - ONLY solid...

F-78 inspecting, cleaning & testing of smoke detectors latest version graded A+ Standard provided by Underwriters Laboratory (UL) Addresses system smoke detector is UL268 Central station A facility that receives alarm signals then retransmits it to the FDNY. Nuisance alarm An alarm caused by mechanical failure, malfunction, improper installations or lack of maintenance, or alarm activated by a cause that cannot be determined. Unnecessary alarm An alarm signal by a fire alarm ...

Inspector Chapter 14 Questions and Answers Already Passed Inspectors should check the FACU to verify: Select one: a. component age. b. components are not blocked or obstructed in any way. c. changes in occupancy. d. all parts are operating properly. D Multistory facilities should have at least _____ pull station(s) on each floor. Select one: a. 3 b. 2 c. 4 d. 1 D Automatic alarm-initiating devices are more commonly known as: Select one: a. detectors. b. alarms....

List the four components that make up a typical alarm system. correct answers Fire alarm control panel FACP Power Supply Initiating device notification appliance Every sprinkler system is equipped with a main water control valve. Most main water control valves are of an indicating type. Give 2 examples of Indicating valves. correct answers Post Indicating Valves (PIVs) Outside Screw and Yoke (OS&Y) What are the two types of smoke detectors? correct answers ionization and photoelectric...

Fire Detection, Suppression, and Smoke Control Systems Chapter 26 Exam Questions with Answers 1. How can an ionization smoke detector be identified? A) Low-profile, pancake shape B) Label stating that it contains radioactive material C) Lack of air vents D) Label stating that it contains carcinogenic material - Answer-B) Label stating that it contains radioactive material 2. How is the tamper alarm on a pull-station connected to the fire alarm system? A) Through shared wiring B) Via...

BONENT – Reviewer Test Questions and Answers 100% Solved The process of osmosis in the kidney occurs through the semipermeable membrane located in the _________. a. Tubules b. Glomeruli c. Macula densa d. Bowman's capsule Correct answer d. Bowman's capsule In MOST delivery system, the blood leak detector is a _____. a. Photoelectric cel unit placed in the blood circuit, this cell continuously measures the optical density of the blood pumped through it. b. Photoelectric cell pla...

Smoke detector requirement after April 2010. Within 20 feet of kitchen and bathrooms ( containing shower or tub)= photoelectric detectors Outside 20 feet of kitchens and bathrooms= either Dual detector ( both ionization and photoelectric) or Two separate detectors ( 1 ionization and 1 photoelectric must be replaced after 10 years from manufacturing date