What has the greatest effect on FLOW? - CORRECT ANSWER-Size of venting system passageway

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Draft is measured by... - CORRECT ANSWER-inches in water column Definition of Draft - CORRECT ANSWER-Difference of pressure INSIDE and OUTSIDE the venting system Easiest solution to "back puffing" stove? - CORRECT ANSWER-Give it more air What has the greatest effect on FLOW? - CORRECT ANSWER-Size of venting system passageway A masonry chimney is required by what to have a cleanout if the flue previously vented a solid or liquid fuel appliance? - CORRECT ANSWER-NFPA 54 (National Fuel Gas Code) High efficiency gas + oil appliances generate a lot of____ which can____ - CORRECT ANSWER- water vapor, deteriorate a chimney quickly Info on use and installation of gas appliance draft hoods can be found where? - CORRECT ANSWER-National Fuel Gas Code Category II, III, and IV appliance venting requirements can be found... - CORRECT ANSWER-in the installation instructions Glazed creosote results from 3 things... - CORRECT ANSWER-slow smoldering fire, too many elbows, improperly sized vent What is "pyrolysis"? - CORRECT ANSWER-The chemical alteration of wood as a result of the application of heat

Perfect combustion results in: - CORRECT ANSWER-Only Co2 and water vapor

Creosote formation: - CORRECT ANSWER-Tar fog or droplets of liquids condense in the venting system Residence time - CORRECT ANSWER-length of time smoke remains in the chimney Magnetic thermometers only display about __% of actual flue temp - CORRECT ANSWER-50% Creosote should be removed because... - CORRECT ANSWER-Fire risk, corrosive to steel, connectors, and mortar Why should flashing be embedded in mortar? - CORRECT ANSWER-prevent leaks Baffle location and purpose? - CORRECT ANSWER-Located between the firebox and flue collar.Purpose is to complete better combustion What does the barometric draft regulator do? - CORRECT ANSWER-Prevents excessive draft Smoke chamber height SHALL NOT be greater than the ______ ______ of the fireplace fire chamber. - CORRECT ANSWER-Inside width Combustion needs... - CORRECT ANSWER-Heat, Oxygen, and Fuel Nominal dimensions can vary by how much? - CORRECT ANSWER-Nominal dimensions vary by 1/2" What is combustion? - CORRECT ANSWER-The rapid oxidation of fuel producing heat and light.Parging the smoke chamber improves FLOW by... - CORRECT ANSWER-Reducing turbulence, 1 / 2

and eliminating corbeling Connector dampers should not block greater than ___% of the connector when closed. -

CORRECT ANSWER-80%

Heat reclaimer / extractor - CORRECT ANSWER-Fits inline with connector, and is NOT to be used with wood burning What inspection level determines if a wall pass-through is installed properly? - CORRECT ANSWER-Level 2 Hearth stove should only be connected to... - CORRECT ANSWER-A properly built masonry fireplace What problems are created when mortar joints between flue tiles are not smoothed? - CORRECT ANSWER-May create turbulence and increased residence time of exhaust.

• Positive aspects of Cast-in-Place liners - CORRECT ANSWER-1. adds structural integrity to

chimney 2. resists corrosive deposits 3. able to support any fuel or appliance when sized properly What never to do to a blocked passage in a chimney? - CORRECT ANSWER-Never pound from above with a weight. (Might block so bad opening a wall is necessary to remove buildup) True or false: A flat wire brush is hardest to reverse because of size and thickness of bristles. - CORRECT ANSWER-True 1st choice of brush for oil passage flues and why? - CORRECT ANSWER-Polypropylene (plastic) because they do not corrode or degrade from corrosive deposits The best brush to remove glaze in the flue? - CORRECT ANSWER-A chain brush / rotary Main purpose of a vacuum - CORRECT ANSWER-To collect dust Two purposes of a ridge hook - CORRECT ANSWER-1. Keep footing of slippery / fragile roofs 2.Allow access on steep roofs Why use an aluminum ladder? - CORRECT ANSWER-Lighter and less expensive over fiberglass Respirator protects from what 4 things... - CORRECT ANSWER-gases, dust, vapors, disease from animals How does a positive pressure respirator work? - CORRECT ANSWER-A fan forces air into the mask

• Fundamental tools for a chimney sweep - CORRECT ANSWER-Lights and mirrors
• Must-have safety items - CORRECT ANSWER-Gloves, hearing protection, safety glasses

Before setting up a ladder you should... - CORRECT ANSWER-walk around perimeter to choose best location What should shoe soles be made of? - CORRECT ANSWER-soft sole / crepe or gum sole. NEVER leather.

Ladders should be set up at what ratio? - CORRECT ANSWER-4:1

Best method of climbing ladders - CORRECT ANSWER-Climb with both hands on rails (sides) Best way to avoid creosote related illness... - CORRECT ANSWER-Protect yourself from

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