With Revised Correct Detailed
Answers
Guaranteed Pass
1) Sulfuric acid is formed by... - ANSWER coal mixed with water
2) Ideal moisture content of wood - ANSWER 15% - 25%
3) Dry wood amount of BTUs? - ANSWER dry wood = 8600 BTUs /
lb
more moisture = lower BTUs
4) Oil produces how many BTUs per gallon? - ANSWER 140,000
BTUs / gallon
5) Liquid propane produces how many BTUs per ft3 - ANSWER
2500 BTUs / ft3
6) BTUs from natural gas - ANSWER Natural gas = 1000 BTUs
,7) Height of chimney beyond roof? - ANSWER 2 feet above the
ridge, measuring from top of chimney
8) What is a B vent pipe - ANSWER 1. double wall and aluminum
inner liner
2. for gas appliances, listed for B with draft hood
9) What is a BW vent - ANSWER 1. oval, designed to fit in studded
wall cavity
2. originally listed for gas wall furnace
10) What are single wall connectors known as? Give measurements? -
ANSWER 1. known as the "breech"
2. 6-10" diameter, minimum 24 guage steel
11) Modern inserts almost always require... - ANSWER a liner to
the top (known as a positive connection)
12) Vented appliances include... - ANSWER oil, gas, and pellet
appliances
(only to be used for venting appliance listed for use with a vent)
13) Factory built fireplaces consist of...______, _______ & _______ -
ANSWER Firebox, damper, chimney
, 14) Corbels should not exceed ______ of the individual masonry unit
height; nor ________ its thickness - ANSWER 1/2, 1/3
15) Smoke chamber walls should be the ______ of the firebox? -
ANSWER full width
16) Natural draft chimneys shall extend a MINIMUM of ______ ft above
any parapet wall within 10 feet - ANSWER 2 feet
17) Rectangular chimney liners with an aspect ratio greater than 2 to 1
are sized to AT LEAST _______ the fireplace opening - ANSWER 1/8
18) A level 2 inspection includes all aspects of level 1 - TRUE or FALSE? -
ANSWER TRUE
19) How far must a chimney extend above the roofline? - ANSWER
3 Feet (and at least 2ft taller than anything within 10ft)
Gaps between firestopping and the chimney shall not exceed: -
ANSWER 1/16"