Actual Complete Real Exam Questions And Correct Answers
(Verified Answers by Expert) Already Graded A+ | Guaranteed
Success!! Newest Exam | Just Released!!
what is an appliance data plate - ANSWER-reference used to
determine the
proper category for an
appliance
what are catalytic combustors - ANSWER-designed to increase
combustion efficiency of the appliance by lowering the ignition
temperature of flue gas passing through
what is combustion efficiency - ANSWER-% of potential
energy converted to
useful heat in the fire chamber of the
appliance
what contributes to the greatest combustion efficiency? -
ANSWER-Time,
Temperature,
Turbulence
,takes 1100 degrees to get complete combustion
of wood fuel
sulfuric acid is formed by... - ANSWER-coal mixed with water
ideal moisture content of wood - ANSWER-15% - 25%
dry wood amount of BTUs? - ANSWER-dry wood =
8600 BTUs / lb
more moisture = lower
BTUs
oil produces how many BTUs per gallon? - ANSWER-140,000
BTUs / gallon
height of chimney beyond roof? - ANSWER-2 feet above the
ridge, measuring
from top of
chimney
what is a B vent pipe - ANSWER-1. double wall and
aluminum inner liner
2. for gas appliances, listed for B with
draft hood
what is a BW vent - ANSWER-1. oval, designed to fit in
studded wall cavity
,2. originally listed for gas wall
furnace
What are single wall connectors known as? Give
measurements? - ANSWER-1.
known as the
"breech"
2. 6-10" diameter, minimum 24
guage steel
modern inserts almost always require... - ANSWER-a liner to the
top (known as
a positive
connection)
vented appliances include... - ANSWER-oil, gas, and
pellet appliances
(only to be used for venting appliance listed for use
with a vent)
factory built fireplaces consist of...______, _______ &
_______ - ANSWER-
Firebox, damper,
chimney
corbels should not exceed ______ of the individual masonry
unit height; nor
, ________ its thickness - ANSWER-
1/2, 1/3
smoke chamber walls should be the ______ of the firebox?
- ANSWER-full
width
natural draft chimneys shall extend a MINIMUM of ______ ft
above any parapet
wall within 10 feet -
ANSWER-2 feet
rectangular chimney liners with an aspect ratio greater than 2
to 1 are sized to
AT LEAST _______ the fireplace opening -
ANSWER-1/8
a level 2 inspection includes all aspects of level 1 - TRUE
or FALSE? -
ANSWER-
TRUE
How far must a chimney extend above the roofline? - ANSWER-
3 Feet (and at
least 2ft taller than anything
within 10ft)