NFI Woodburning questions well answered
already passed graded A+
1. What is the first stage of wood combustion? Moisture evaporation
2. Which term refers to the process of wood Pyrolysis
molecules breaking down and becoming
vaporized hydrocar- bons during
combustion?
Stage 3
3. At which stage of combustion is significant
heat re- leased?
4. Which of the following causes the greatest Moisture content of
wood
reduction of combustion efficiency in a
woodstove?
5. Which of the following is NOT a factor that contributes High Heat
Transfer Efl-
to better woodburning combustion efficiency? firebox
design does
6. 100% Heat transfer efficiency would create NOT
problems with: contribute
to the
7. Low heat output, excessive smoke, and the
ignition and
formation of potentially dangerous creosote are
burning of
associated with which of the following
these
8. Which of the following is most likely to gases?
occur when burning high moisture content
wood as opposed to dry wood?
9. What is the primary purpose of a catalytic
combustor as it relates to wood combustion?
10. The combustion of wood ignites and burns
volatile gases. Which element of a noncatalytic
1/
9
, NFI Woodburning questions well answered
already passed graded A+
iency
raft and water condensa- tion
ncomplete combustion of tar droplets and hydrocar- bons
ncreased Btus needed to evaporate water
o reduce gas ignition temperatures
arge firebox
2/
9
already passed graded A+
1. What is the first stage of wood combustion? Moisture evaporation
2. Which term refers to the process of wood Pyrolysis
molecules breaking down and becoming
vaporized hydrocar- bons during
combustion?
Stage 3
3. At which stage of combustion is significant
heat re- leased?
4. Which of the following causes the greatest Moisture content of
wood
reduction of combustion efficiency in a
woodstove?
5. Which of the following is NOT a factor that contributes High Heat
Transfer Efl-
to better woodburning combustion efficiency? firebox
design does
6. 100% Heat transfer efficiency would create NOT
problems with: contribute
to the
7. Low heat output, excessive smoke, and the
ignition and
formation of potentially dangerous creosote are
burning of
associated with which of the following
these
8. Which of the following is most likely to gases?
occur when burning high moisture content
wood as opposed to dry wood?
9. What is the primary purpose of a catalytic
combustor as it relates to wood combustion?
10. The combustion of wood ignites and burns
volatile gases. Which element of a noncatalytic
1/
9
, NFI Woodburning questions well answered
already passed graded A+
iency
raft and water condensa- tion
ncomplete combustion of tar droplets and hydrocar- bons
ncreased Btus needed to evaporate water
o reduce gas ignition temperatures
arge firebox
2/
9
