QUESTIONS AND 100% VERIFIED ANSWERS NEW!!!
The maximum weight for an Type I industrial grade ladder rating is
____________. - ANS... -250 pounds
Where the trim of a mantel extends up to an 1 1/2", clearance to combustibles
from the firebox opening should be at least __________. - ANS... -6 inches
There must be ____ inches of masonry between a wall thimble and
combustible material. - ANS... -12
Smoke pipe diameter 6 through 10 inches has a required gauge of __________.
- ANS... -24
Single wall chimneys on the exterior of a home can only be used for oil or gas:
true or false? - ANS... -False
Only allowable vent to be used in a stud cavity of a wall. - ANS... -BW Vent
A single wall connector used for oil and solid fuel appliances requires at least
_____ inches of clearance to combustible material. - ANS... -18
What is a corbel? - ANS... -masonry projecting upward and outward from a wall or
chimney
A cricket is designed to_________. - ANS... -redirect water and snow away from
the chimney
What is a wythe? - ANS... -A course of brick separating flues within a chimney
When a round flue is used for the lining of a fireplace chimney the proper fireplace
opening to flue size ratio should be? - ANS... -12:1
Where unlined the smoke chamber walls shall be what thickness? - ANS... -8"
, When the opening of the fireplace is 6 square feet the extension of the hearth
should be __________ ? - ANS... -20 inches
The inner surfaces of the smoke chamber shall not be inclined more than 45
degrees from vertical: true or false? - ANS... -True
A level II inspection includes inspection of accessible areas of attics,
basements,and crawlspaces: true or false? - ANS... -True
The purpose of a heat reclaimer is to _______? - ANS... -extract heat from the flue
gases.
What answer best describes the allowable free air space around a flue tile? - ANS...
-1/2" to 4"
Crickets are recommended whenever the chimney is ____ wide or more. - ANS... -
30"
The maximum allowable slope of an offset in a vertical flue is ___________. -
ANS... -30 degrees
The net area of the spark arrestor must not be less than three times the net free area
if the chimney flue: true or false? - ANS... -True
What is the minimum thickness of a wythe? - ANS... -Four inches nominal
Chimney liners are listed to what standard? - ANS... -UL 1777
NFPA 211 recommends annual cleaning of chimneys,fireplaces, and vents: true or
false? - ANS... -False
The horizontal length of a single-wall connector to a natural draft chimney or vent
serving a single appliance shall be not more than ______ of the height of the
vertical height of the chimney. - ANS... -75%
The effective area of a connector for a single appliance shall be ____ the area of
the appliance flue collar. - ANS... -not less than
Cleanout openings shall be provided in all chimney flues serving freestanding
appliances: true or false? - ANS... -true