CSIA Certification Exam (Updated) Question With Completed Answers

CSIA Certification Exam (Updated) Question With Completed Answers. Draft is measured by... -Answer-inches in water column Definition of Draft -Answer-Difference of pressure INSIDE and OUTSIDE the venting system Easiest solution to "back puffing" stove? -Answer-Give it more air What has the greatest effect on FLOW? -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? -Answer-NFPA 54 (National Fuel Gas Code) High efficiency gas + oil appliances generate a lot of____ which can____ -Answer-water vapor, deteriorate a chimney quickly Info on use and installation of gas appliance draft hoods can be found where? -Answer-National Fuel Gas Code Category II, III, and IV appliance venting requirements can be found... -Answer-in the installation instructions Glazed creosote results from 3 things... -Answer-slow smoldering fire, too many elbows, improperly sized vent What is "pyrolysis"? -Answer-The chemical alteration of wood as a result of the application of heat Perfect combustion results in: -Answer-Only Co2 and water vapor Creosote formation: -Answer-Tar fog or droplets of liquids condense in the venting system Residence time -Answer-length of time smoke remains in the chimney Magnetic thermometers only display about __% of actual flue temp -Answer-50% Creosote should be removed because... -Answer-Fire risk, corrosive to steel, connectors, and mortar Why should flashing be embedded in mortar? -Answer-prevent leaks Baffle location and purpose? -Answer-Located between the firebox and flue collar. Purpose is to complete better combustion What does the barometric draft regulator do? -Answer-Prevents excessive draft Smoke chamber height SHALL NOT be greater than the ______ ______ of the fireplace fire chamber. -Answer-Inside width Combustion needs... -Answer-Heat, Oxygen, and Fuel Nominal dimensions can vary by how much? -Answer-Nominal dimensions vary by 1/2" What is combustion? -Answer-The rapid oxidation of fuel producing heat and light. Parging the smoke chamber improves FLOW by... -Answer-Reducing turbulence, and eliminating corbeling Connector dampers should not block greater than ___% of the connector when closed. -Answer- 80% Heat reclaimer / extractor -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? -Answer-Level 2 Hearth stove should only be connected to... -Answer-A properly built masonry fireplace What problems are created when mortar joints between flue tiles are not smoothed? -Answer- May create turbulence and increased residence time of exhaust. 3 Positive aspects of Cast-in-Place liners -Answer-1. adds structural i