What is a plenum - Study guides, Class notes & Summaries

Fire Alarm TFM12 What does PLFA stand for? - correct answer Power Limited Fire Alarm What does NPLFA stand for? - correct answer Non-Power Limited Fire Alarm What material must NPLFA circuit conductors be made from - correct answer Only solid or stranded copper is permitted What is a single station detector? - correct answer Battery powered smoke detectors that do not communicate off premises. What is a multiple station detector? - correct answer Mains powered smoke detectors with b...

Biosafety Questions and Answers with Verified Solutions Question: What are examples of ventilation equipment? Ventilation equipment includes various types such as chemical fume hoods, biological safety cabinets, isolators, and laminar flow clean benches, each serving specific purposes in laboratory settings. Question: What is the primary function of a chemical fume hood? Answer: To protect personnel from chemical hazards. Explanation: Chemical fume hoods are designed to safeguard labor...

Fiber Optics Exam Questions and Correct Answers (Verified Answers) Newest Version Why does Grades Index fiber use numerous concentric layers of glass, - Answer To prevent modal dispersion What is the optical fibers cladding bonded to during the assembly process? - Answer Ferrule A fiber optic cable that is "fire retardant and low smoke" is called what according to the NEC? - Answer Plenum What type of fiber has an aqua jacket? - Answer OM3 and OM4 Mm laser optimized multimod...

Fiber Optics Test 1 Questions And Answers 100% CorrectFiber Optics Test 1 Questions And Answers 100% CorrectFiber Optics Test 1 Questions And Answers 100% CorrectFiber Optics Test 1 Questions And Answers 100% CorrectFiber Optics Test 1 Questions And Answers 100% CorrectFiber Optics Test 1 Questions And Answers 100% Correctbenefits of fiber optics - ANSWER - more, further, faster, not subject to EML, more secure What is plenum rated cable? - ANSWER - Cable that used to be put in a plenum wh...

Shielded Twisted-Pair (STP) cabling reduces what kind of interference? (Select 2 answers) Jitter Signal attenuation Crosstalk EMI Signal latency - Answer-Crosstalk EMI Which of the following answers refer(s) to UTP cabling? (Select all that apply) Twisted-pair copper cabling Used in Ethernet networks and telephone systems Low cost and ease of installation Takes advantage of additional protective cover reducing signal interference from outside sources Coaxial cabling Not surrou...

According to the Two Permanent Openings Method one opening must commence within ____ and one must commence within ___ of the enclosure - Answer- 12 inches of the top 12 inches of the bottom Room heaters shall NOT be installed in what occupancies? - Answer- Health care and Residential board and care. Define a type B-W gas vent: - Answer- It shall not have a listed capacity NOT LESS than that of the listed vented wall furnace to which it is connected. Listed vented wall furnaces shall use...

Fire Alarm TFM12 questions & answers rated A+ 2024/2025What does PLFA stand for? - correct answer Power Limited Fire Alarm What does NPLFA stand for? - correct answer Non-Power Limited Fire Alarm What material must NPLFA circuit conductors be made from - correct answer Only solid or stranded copper is permitted What is a single station detector? - correct answer Battery powered smoke detectors that do not communicate off premises. What is a multiple station detector? - correct answer...

HVAC Masters Test Questions and Answers Already Passed What is the minimum size of drier vent 4 inches Can a 2x4 studding be used for plenum or return chases or duct No Appliance in a public garage should have a minimum clearance from the floor 8 feet Duct insulation should have a smoked developed index of no more than 50 Duct insulation material should have a minimum flame spread rating of 25 What is the maximum temperature of gypsum board 125 degrees Fahrenheit What is ...

CSST EXAM PREP (Notes for the California CSST EXAM) QUESTIONS WITH 100% CORRECT SOLUTIONS. What is Title 8 CCR 5208 and 29 CFR 1910.1001? -Answer-General Industry What is plenum space? -Answer-An enclosed space that is used for airflow. Example: the area above a drop ceiling. What is fibrosis? -Answer-formation of scar tissue in the lungs What is mesothelioma? -Answer-Cancer that arises from the mesothelial cells of the pleura is caused by asbestos fibers What is Asbestosis -Answer-Asbe...

TFM 12 Exam Study Guide 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 ...