CON 151 Exam 2 Questions And 100% Accurate Answers.
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Course
CON 151
Institution
CON 151
Types of trees and how we can tell the difference - Answer coniferous: mostly softwoods, and usually have cones, thicker rings,
more shrinkage
deciduous: mostly hardwoods and shed leaves, smaller rings, less shrinkage
moisture content 20%, 30% - Answer 20% below no decay.
30% below equ...
CON 151 Exam 2 Questions And 100%
Accurate Answers.
Types of trees and how we can tell the difference - Answer coniferous: mostly softwoods, and usually
have cones, thicker rings,
more shrinkage
deciduous: mostly hardwoods and shed leaves, smaller rings, less shrinkage
moisture content 20%, 30% - Answer 20% below no decay.
30% below equals dimensional instability
Relationship between wood moisture content and strength in wood - Answer Dry = stronger, wet =
weaker.
Parts of a tree - Answer outer bark, inner bark, cambium layer, sap wood, heart wood, pith, growth
rings
Types of sawing of trees into lumber and why - Answer Plain-sawn: cheaper, less shrinking, less
weakening knots, fewer shakes and pitch pockets running through board
Quater-sawn: more expensive, shrinks less in width, tends to wear more uniformly, holds paint better,
twists and cups less
Metal studs: ways to attach - Answer weld, screw, or both
Wide Flange: - Answer W 12 X 26
W = Wide Flange Designation
12 = Nominal Depth (inches)
26 = Weight (lbs.) per foot
W12x26 - 12'-0" long weights:
12' x 26#/lf = 312#
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