What is combustion air - Study guides, Class notes & Summaries

Fire Investigator - Master For TCFP Test Questions and Answers (Test Bank) Complete Solution 100% Verified Is NFPA 921 a guide or a standard? It is the Guide for Fire and Explosion Investigations What are the six steps of the scientific method? Recognize the need Define the problem Collect the data Analyze the data Develop a hypothesis Test the hypothesis What step of the scientific method is inductive reasoning? Analyze the data What step of the scientific method is deductive reason...

IFSTA 7th Edition - Chapter 11: Tactical ventilationTactical ventilation is performed during fire attack to: (493) - correct answer Help control the fire Why is ventilation used during overhaul and loss control? (493) - correct answer Evacuate smoke from structures after a fire has been extinguished When performing tactical ventilation, what action has the most impact on successful ventilation? (494) - correct answer Controlling oxygen availability Which action may improve visibility in...

HVAC Gas Heat certification exam Questions and Answers 100% Pass A gas furnace is to be installed in a garage. The national standards require that the burners and ignition sources must be located ______ above the floor - Correct Answer ️️ -18 inches A good description of how a bi-metal fan switch operates the blower motor on a gas furnace is - Correct Answer ️️ -Temperature on- temperature off Redundant gas valves used on gas furnaces have - Correct Answer ️️ -Dual gas shut o...

IFSTA 7 - Chapter 11 - Tactical Ventilation Exam Questions And Answers 100% Solved Which type of ventilation is accomplished by using fans, blowers, or smoke ejectors to create negative or positive pressure? Select one: a.Mechanical ventilation b.Hydraulic ventilation c.Natural horizontal ventilation d.Primary horizontal ventilation - answera. Mechanical ventilation Which type of ventilation consists of opening doors and windows to allow air currents and pressure differences to remove ...

NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% - correct answer C: 78% Many pre-1992 furnaces have efficiencies around . A: 10% B: 40% C: 60% D: 80% - correct answer C: 60% Today, furnaces with AFUE ratings greater than are available. A: 85% B: 90% C: 100% D: 110% - correct ...

A heat source capable of maintaining at least __________ should serve every habitable space in houses in almost all regions. - 68F Burning natural gas creates _______________. - Water vapor and carbon dioxide Burning natural gas with Oxygen yields CO2, water vapor and _______. - Heat As hot gases cool, they release a lot of heat energy as the change their state from __________. - Gas to a liquid If combustion air is inadequately supplied to a gas furnace, ___________ will be produced. - C...

FDNY S-92 Questions and Answers Rated A+ The following are types of what? LPG, CNG, piped natural gas or solid fuel (coke). Portable fueled salamanders/space heaters National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL) for carbon monoxide 35 parts per million (ppm) over an 8 hour period What is the third leading cause of fires in buildings under construction ? temporary heating What is direct heat flow through matter? CONDUCTION What is the transport...

FDNY A-35 questions with answers graded A+ 2023Air compressors power... (1) industrial equipment and (2) construction tools Examples of equipment powered by air compressor pneumatic wrenches, lifts in auto service stations, paint spray booths Air compressors enable... (1) efficient repair of all types of vehicles; and (2) facilitate their safe operation on public thoroughfares Permit is required for air compressor that compresses air above 100 PSI Types of air com...

The Problem with Stucco is that it____ - ANSWER-tends to crack How should corner moldings on aluminum sliding be installed - ANSWER-upper molding overlapping A hinge door that rubs the frame may have - ANSWER-loos hinge screws Discoloration or fogging in a window is an indication of - ANSWER-a leaking insulated glass seal what would not be the cause of a sag in a porch ceiling - ANSWER-rotting fascia board what is most highly recommended for repairing aluminum branch circuit wir...

CSIA TEST QUESTIONS AND ANSWERS When a round flue is used for the lining of a fireplace chimney the proper fireplace opening to flue size ratio should be -Answer-12:1 When unlined the smoke chamber walls shall be what thickness -Answer-8" When the opening of the firebox is 6 square feet the extension of the hearth should be -Answer- 20 inches T or F the inner surfaces of the smoke chamber shall not be inclined more than 45 degrees from vertical -Answer-True A level 2 inspection inspecti...