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CSIA TEST QUESTIONS AND ANSWERS
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When a round flue is used for the lining of a fireplace chimney the proper fireplace opening to flue size ratio should be ✔✔12:
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 %
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
rabies is not carried by ✔✔Birds
what species carries histoplasmosis ✔✔Birds
what animal is known for roundworm ✔✔raccoons
what is NOT a step of a sweep ✔✔turn all gas appliances off
What is the proper class fire extinguisher for flammable liquids grease and oil ✔✔Class B
T or F - the area of a fireplace chimney flue cannot be greater than twice the area of the wood stove appliance outlet on an exterior chimney ✔✔True
a 24 gauge sheet metal panel with 1 inch airspace will reduce clearance to combustibles by ____ when used as a wall protector ✔✔66% ???
According to NFPA 211 solid fuel burning appliances can be install in a garage ✔✔
Fuel air and heat are required components of what ✔✔combustion
The maximum width for a type 1 industrial grade ladder rating is ✔✔250 pounds
where the trim of a mantel extends up to an 1 1/2 inch clearance to combustibles from the firebox opening should be at least ✔✔6 inches
connector pipe of thimble should extend into the chimney how far ✔✔flush with the interior flue wall
how many screws for connector pipe ✔✔ 3
the formula for determining the cross sectional area of a square or rectangular flue is? ✔✔
two major factors influence the mount of draft what are they ✔✔temperature difference the outside and flue gas temp and the height of the chimney
The height of the smoke chamber should be no taller than ✔✔
connectors should maintain a pitch or rise of _______ per foot of horizontal length of pipe from the appliance to the chimney or vent ✔✔1/4 inch
Thermal shock can be caused by ✔✔a sudden rise or drastic drop in temperature
T or F Vent and chimney connectors shall not be covered with insulation ✔✔True
Btus per cubic foot of gas ✔✔ 2500
Sensible heat is ✔✔heat that you can feel
T or F latent heat is heat you can feel ✔✔False
Natural gas has how many BTU per cubic foot of gas ✔✔ 1000
Propane gas has how many BTU per cubic foot of gas ✔✔ 2500
creosote is a ✔✔carcinogenic
How do you reset a stack control on an oil fired appliance ✔✔PUll the lever out 1/4 of an inch than release slowly
Backpuffing is ✔✔smoke coming into the room in short sharp burst
the temperature measured with a surface thermometer is roughly what percentage of the actual internal flue gas temperature ✔✔50%
Pellet fuel produces how much heat per pound ✔✔8200 BTUs
Cordwood produces how much heat per pound ✔✔
a heat exchanger is ✔✔an area of the appliance where heat is transferred to air or water
gases driven off from burning wood ignite at what temperature ✔✔1100 degrees
Complete combustion yields what ✔✔carbon dioxide water vapor and heat
residence time is ✔✔the amount of time smoke stays in the venting system
checking the fire stopping is part of a _______ inspection ✔✔level 3
checking that the wall pass through has adequate clearance is part of a _______ inspection ✔✔level 2
checking the basic appliance installation and connection is part of a ______ inspection ✔✔Level 1
Checking the size and suitability of flues for the connected appliances is part of a ________ inspection ✔✔Level 2
Checking the appliance and connector clearance is part of a _______ ✔✔Level 1 inspection
Checking the expansion joint the flue tile and the wash is part of a ________ inspection ✔✔level 2
when the fireplace opening is greater than 6 square feet the hearth must extend ______ to the front and ________ to the sides ✔✔20 and 12
a 3.5 inch thick brick wall protection system, installed with a 1-inch air space will reduce clearance to combustibles material by ✔✔
_________ Operated dampers shall not be places in chimney vents or connectors of stoker-fired liquid or gas burning appliances ✔✔Manually
There should be an air space between the flue tile and the inside of the chimney wall of at least _____ and no more than _______ ✔✔
ALl spaces between chimneys and the floors and ceilings through which the chimneys pass shall remain fully open but be ______ with non combustable material ✔✔
The maximum continuous flue gas temperature for a residential chimney should not exceed ✔✔1000 degrees
The minimum height for a chimney or vent above flue collat or draft hood is ✔✔3 feet
A chimney must be ______ taller than anything portion of any structure located within 10 feet of the chimney ✔✔24 inches
Interior residential chimneys shall be ______ where they extend through closets storage areas or habitable spaces ✔✔
what is the formula to determine the area of a circle ✔✔Radius X Radius X pi
if a mantel projects more than 3 inches it should be ✔✔12 " above the fireplace opening
how much can a nominal dimension vary ✔✔no more than 1/2 inch
According to IRC where there is no firebrick lining in the firebox the thickness of back and side walls shall not be less than ✔✔10"
the clearance to combustibles for a exterior masonry chimney is ✔✔1 inch
the clearance to combustibles for an interior masonry chimney is ✔✔2 inch
Are unlisted decorative shrouds allowed on zero clearance fireplaces ✔✔NO
3 and 1/2 inch thick masonry wall without ventilated air space allows you to reduce clearances by how much ✔✔33%
An exterior masonry chimney must have at least how many inches of clearance to a combustible wall ✔✔1 inch
unless a wood burning appliance is listed otherwise the floor protection should extend at least _____ inches on all sides of the appliance ✔✔18 inches
Mobile and manufactured homes must meet what standard ✔✔Stringent NFPA 211
T or F - vents are used for vented solid fuel burning appliances only ✔✔False
A draft hood should be installed on a wood stove when ✔✔
single wall connectors less than or equal to what diameter will be permitted to pass through a partition or wall. ✔✔
T or F a connector is a UL listed pipe to connect a fuel burning appliance to a chimney or vent ✔✔False
Smoke density is ✔✔Amount of unburned hydrocarbons in the flue gas
proper clearance to combustibles, inspection of accessible attics and rooftop inspection would be considered what level of inspection ✔✔Level 2
T or F - The net free area of the spark arrestor must not be less than 3 times the net free area of the chimney flue it serves ✔✔True
when installing stove pipe on a wood stove which end of the smoke pipe goes down toward the appliance ✔✔Male
The ideal moisture content of wood should range between ✔✔15 and 20%
The two major principles at work in a chimney are? ✔✔Draft and flow
Minimum air space allowed between the flue lining and the interior masonry wall is ✔✔not less than 1/2 inch
