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

NFPA 72 Questions and Answers with Certified Solutions What does PFLA stand for? Power Limited Fire Alarm. What does NPFLA stand for? Non-Power Limited Fire Alarm. What material must NPFLA circuit conductors be made from? Only solid or stranded copper is permitted. 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 toget...

What does A.W.G stand for? - American Wire Gauge What size conductors are permitted? - Size 18 A.W.G and 16 A.W.G are permitted, provided they do not exceed certain capacities. What is used to protect transformers or other devices supplied from power-supply conductors? - An over-current device not rated over 20 amperes. When located within 7 feet of the floor, how shall cables be fastened? - Cables shall be fastened in an approved manner at intervals of not more than 18 inches. Si...

Fire Alarm TFM 12 Exam Review 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 - Only solid or stranded copper is permitted 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 un...

41 CFR 102-35.30 correct answers Disposition procedures must follow Federal Requirements as stated by Prior to personal property permanently leaving CG's control correct answers Agency-affixed markings should be removed when? Property Custodian (PC) correct answers Who is responsible for initiating the report of abandonment/destruction of personal property, Form CG-5598? 30 days total PC-6 APO-5 Hazmat-2 Security-2 CO/OIC-5 Regional manager-5 Final Approval-5 correct answers Rec...

VDV Study Guide v1.0 Questions and Answers (100%Guaranteed Pass) Latest Update. When you are sound masking, what is white noise used for? To produce ambient noise dB is a ratio of 2 quantities In antenna television system, what is a permitted substitution for CATVP cable? BLP Which type of cable is permitted substitution for OFNP? NONE What is the cable marking for Class 3 plenum? CL3P Dynamic Range means? Between the loudest & quietest portion of a program in decibels VDV Study Gui...

VDV Study Guide v1.0 Questions and Answers (100%Guaranteed Pass) Latest Update. When you are sound masking, what is white noise used for? To produce ambient noise dB is a ratio of 2 quantities In antenna television system, what is a permitted substitution for CATVP cable? BLP Which type of cable is permitted substitution for OFNP? NONE What is the cable marking for Class 3 plenum? CL3P Dynamic Range means? Between the loudest & quietest portion of a program in decibels VDV Study Gui...

BOMA-Instrumentation & Controls Questions and Answers Graded A+ A submaster controller resets the set point of the master controller. False Normally open refers to a controlled device that opens when no operating force is applied. True A P.E. Switch is used to change an electrical signal to a pneumatic output. False Moisture and dirt are detrimental to the operation of pneumatic control systems. True A static pressure regulator senses the pressure in the plenum the regulator contro...

G2 Gas Technician Module 19 Revised Questions Rated A If the venting on a high efficiency furnace runs through unheated spaces, what must be done? Insulate piping to prevent Condensation and freezing What is condensate drain piping used for? Dispose Liquid waste Once the furnace is installed, what are the gas technician's responsibilities to the user? To instruct the the user in the safe and correct operation of all appliances and equipment - clause 4.3.2 Which furnace type is the most popu...

TFM 12 Fire Alarm Technical Questions and Answers Graded A+ 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 cir...

b (heat exchanger) - Answer In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. a. gas valve b. heat exchanger c. inducer fan d. plenum box a (Gravity) - Answer What type of furnace moves warm air through the conditioned space without a fan? a. Gravity b. Horizontal c. Lowboy d. Upflow d (steel) - Answer Furnace heat exchangers generally are made of ______. a. ceramic b. copper c. plastic d. steel b (Annual Fuel...