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So, you you know hardwoods? think
CHECK your knowledge against the - the following examination questions that used to beaskedprospective hardwood lumbermen at the old E. J. Stanton & Son Lumber Co., Los Angeles, the yarding activity of which is now carried on bv Lane-Stanton tumber Co., City of Industry, Ca. Our thanks to LeRoy Stanton, Sr. for supplying the following exam from his files.
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How well con you do on this tesf of your knowledge of hordwoods plus o few softwoods? if your qnswers ore few. you're not lhe only one to crosh ond burn on this exominolion.
For the correct answers, DON'T call us, contact your local hardwood firm and see how they do. And good luck on the test.
Questions
I. Tell difierence between deciduous and evergreen trees and state exceptions to rules.
II. What are medullarv rays? How do they differ fiom'annular rings?
(a) How do they afiect the saw. ing of hardwoods?
(b) What is the difference between:
(l) Quarter sawn lumber?
(2) Plain sawn lumber?
(3) Rift sawn lumber?
(4) Ribbon grain lumber?
(5) If flake shows on surface, what would show on edges?
(c) Give characteristies of following woods as follows:
(l) Color.
(2) Degree of hardness.
(3) Describe grain.
(4) Working qualities characteristics.
(5) Tendency to twist warp.
(6) Name uses to which put, in order of importance, both in upper and lower grades.
(7) Where grows?
(8) How can you distinguish from other woods?
(9) Grows in low or high altitudes?
(I0) Availability, volume, etc.
(Il) Susceptibility to worms.
(I2) Comparable prices with other woods.
(13) Dimensions in which obtainable.
(14) Easy or hard to kiln d.y.
III. Describe band sawing and circu- lar sawing of lumber and advantages of each.
IV. How much shrinkage has to be figured in sawing green lumber so that it will surface to standard thickness after drying?
V. Give standard thicknesses of surfacing dry hardwoods and softwoods.
VI. To what moisture content should hardwoods be dried? (a) For manufacture of furniture? (b) Vehicle work? (c) Aircraft work? (d) Ladder stock?
VII. Care of lumber.
(a) Why is lumber salted? De. scribe reaction.
(b) How to prevent wormy lumber and what to do if lumber contains live worms.