Sustainable Bio. (Lumber) Flashcards

1
Q

Lumber is dried to a specific moisture content

A

Kiln

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Softwood lumber production is almost evenly split between what two regions in the U.S.?

A

South and West

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Often defined for trade as a product sawn from a log.

A

Lumber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Softwood lumber less than 2 inches thick

A

Board

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Softwood material 2-4 inches thick

A

Dimension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Softwood pieces 5 inches or thicker

A

Timber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Single most important hardwood species

A

Red Oak

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Used principally as a building construction material

A

Softwood Lumber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Approximately 3/4 of the softwood soft timber harvested in the U.S. is what two species?

A

Douglas Fir and Southern Yellow Pine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Measuring the volume of logs

A

Scaling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Hardwood lumber grades were developed with the assumption that lumber would be cut into smaller usable pieces called

A

Cuttings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A log rule defines a conversion that relates the _____ of a log to an estimate of lumber yield.

A

Diameter and Length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Log rule that provides the closest estimate to actual lumber production

A

International 1/4-in. Rule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The log rule that greatly underestimates the volume of lumber that can be obtained from small logs

A

Doyle Rule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The main reason for debarking logs prior to sawing so that the bark-free slabs can be chipped and sold for use in making pulp. Bark is usually used for ____

A

A fuel source

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The most widely used type of debarker in saw mills

A

Ring Debarker

17
Q

Machine traveling on rails which conveys logs back and forth through the saw

A

Carriage

18
Q

Head saws often did not cut the lumber to its final thickness, but instead sawed the log into thick pieces called

A

Cants

19
Q

A head rig developed in the 1960s and now used throughout part of America for small softwoods

A

Chipping Saw

20
Q

The width of the cut made by the saw

A

Kerf

21
Q

Cutting lumber to width

A

Edging

22
Q

Cutting lumber to length

A

Trimming

23
Q

The portion of a lumber manufacturing plant where cutting the final size and surfacing is done

A

Planer Mill

24
Q

Bark or lack of wood on the edge or corner of a piece of lumber

A

Wane

25
Q

Reduces logs to the desired length and proper mill utilization

A

Cutoff Saw

26
Q

A combination of volume, grade, and size gives you

A

The value of a piece of lumber

27
Q

The organization that writes the grades used in U.S. and Canada for hardwood lumber

A

National Hardwood Lumber Association

28
Q

Trade association responsible for preparing and administrating the grade rules for softwood lumber

A

Southern Pine Inspection Bureau

29
Q

No specific moisture content or ____ is sold as dry or kiln dry.

A

Hardwood Lumber

30
Q

A mill producing twice as much lumber as the log scale would have ______.

A

A 100% overrun

31
Q

Cuts a cant into multiple boards with a single pass

A

Gang Saw

32
Q

Cuts straight boards from a crooked log

A

Curve Saw