Measurements Final Flashcards

(37 cards)

1
Q

Definition of bolts

A

Pieces cut shorter than 8 feet

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2
Q

Definition of scaling

A

The process of measuring volumes of individual lengths

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3
Q

Common units of volume

A

Cubic feet, cords, board feet, and weight

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4
Q

Coed dimensions

A

rick-4’x4’x8’ widthxheightxlength/128ft^3

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5
Q

Composition of wood volume

A

Wood fiber, bark, open space

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6
Q

Factors affecting value of stacked wood

A

Species, method of piling, diameter of sticks, length of sticks, straightness, freedom from knots, bark

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7
Q

How much solid wood volume does hardwoods contain.

A

79ft3

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8
Q

How much solid wood volume does soft woods contain

A

72ft3

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9
Q

Advantages of wood volume by weight

A

Weight scaling is not objective than cord wood scaling, wood yard inventions are more easily maintained because of greater uniformity

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10
Q

Factors to worthy scale logs

A

Weight per cord for a particular species and moisture content and specific gravity

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11
Q

Calculation of wood density

A

Specific gravity x 62.4 (1+(%moisture/100)

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12
Q

Calculate cubic foot volume of cylinder?

A

.005454D^2xL

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13
Q

Hubers formula

A

B1/2xL

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14
Q

Smalians formula

A

(B+b)/2 xL

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15
Q

Newtons formula

A

(b+4B1/2+B) /6 xL

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16
Q

Definition of log rule

A

A table or formula showing estimated volumes for various log diameters

17
Q

Log scaling

A

Is the process of applying log rules and involves determining log dimensions and making allowances for defects

18
Q

Board foot calculations

A

Thickness x width x length/12

19
Q

Mill tally

A

Direct measure of dawn lumber

20
Q

Type of log rules?

A

Scribner, Doyle, and international

21
Q

Scribner formula

A

.8(d-1)^2-(d/2)

22
Q

Doyle formula

23
Q

International formula

24
Q

Which log rule incorporate deductions die to slabs, saw kerf, edgings, and shrinkage?

A

International

25
Calculation of net or sound scale
Gross scale -deduction
26
Considerations in scaling logs with defects
Rot, worm holes, ring shake, checks, splits, and crooks
27
Main types of defects
Interior, exterior or peripheral, crook defects, and operating defects.
28
Board foot loss for scribner
(W x t x L)/15
29
Board foot loss for international
(W x t x L)/16
30
Log grading considerations
Minimum diameter, minimum length, max number of cuttings, minimum length of cuttings,
31
What are log use classes?
Veneer, factory, construction, and local use
32
Definition of veneer class
High value logs as well as some relatively low value logs
33
Definition of factory class
Includes logs adapted to the production of boards that later can be remanufactured so as to remove defects.
34
Construction class
Logs suitable for sawing into ties, timbers, and other items for structural purposes
35
Local use class
Logs suitable for products not usually covered by standard specifications: crating, pallet, parts m, mine timbers, industrial blocking a, secondary farms buildings
36
Considerations for selecting volume table
What species, how many sample trees, who is the author, type of height and form,
37
Definition of logs?
When trees are cut into lengths of 8 feet or more, the sections are referred to as logs.