Csia Test Study Guide

CSIA TEST STUDY GUIDE When a round flue is used for the lining of a fireplace chimney the proper fireplace opening to flue size ratio should be - 12:1 When unlined the smoke chamber walls shall be what thickness - 8" When the opening of the firebox is 6 square feet the extension of the hearth should be - 20 inches T or F the inner surfaces of the smoke chamber shall not be inclined more than 45 degrees from vertical - True A level 2 inspection inspection of accessible areas of attics basements and crawlspaces - True The purpose of a heat reclaimer is to - Extract heat from the flue gases What best describes the allowable free air space around a flue tile - 1/4 inch to 4 inch Crickets are recommended whenever the chimney is - 30" wide The maximum allowable slope of an offset in a verticle flue is - 30 degrees The area of the spark arrestor must not be less than three times the net free area of the chimney flue - True What is the minimum thickness of a wythe - 4 inches nominal chimney liners are listed to what standard - UL 1777 NFPA 211 recommends annual cleaning of chimneys fireplaces and vents - False The horizontal length of a single wall connector to a natural drat chimney or vent serving a single appliance shall be not more than ______ of the height of the vertical height of the chimney - 75 % The effective area of a connector for a single appliance shall be ______ the area of the appliance flue collar - atleast 50% Cleanout openings shall be prvided in all chimney flues serving free standing appliances - True What species causes anaphylactic shock? - Bees A type 3 ladder is rated for - 200 lbs what are the stages of wood burning - drying pyrolysis charcoaling The volume of gases which actually pass through the system as a result of draft is - Flow Rectangular flues with aspect ratios greater than 2 to 1 shall be sized at least ______ of the fireplace opening - 1:8 single wall connector clearance for an unlisted gas appliance with a draft hood is - a level ______ inspection is done with ladders and common hand tools - 2 Draft is the force or pressure difference between the inside and the outside of the venting system - true NFPA 211 recommends chimney flues should be inspected - Annually Two major factors that affect draft are - temperature differential and chimney height what are factors of combustion efficiency - time turbulence and temperature