CME203 NDSU exam 2 Questions and Answers
What is the basis for classifying lumber into board, dimension, lumber, and timber?
Thickness
In which direction does the lumber shrink the LEAST?
Longitudinal
Function of mortar
Adheres & cushions masonry units
Seals against water and air...
What is the basis for classifying lumber into board, dimension, lumber, and timber? -
answer Thickness
In which direction does the lumber shrink the LEAST? - answer Longitudinal
Function of mortar - answer Adheres & cushions masonry units
Seals against water and air infiltration
Is important to appearance - 20% of brick wall surface
Ingredients of mortar - answer Portland cement: the bonding agent
Lime: imparts smoothness and workability
Sand
Water
brick Colors - answer The higher the burning temperature, the greater the shrinkage
and the darker the brick
structural steel - answer hot rolled
Light Gauge Steel - answer - cold formed Thermally inferior in itself Dimensional
stability unaffected by humidly Not susceptible to decay or termites Noncombustible
Exterior finishes for wood light frame construction - answer ○ Roofing
○ Windows and doors
○ Siding
Forms of weather barriers - answer Moisture barriers
Air barriers
Radiant barriers
Underlayment - answer provide protection from rain, snow, and wind
Anodizing aluminum means: - answer Building up a strong oxide coating using an
electrolytic process.
The primary purpose of housewrap (Tyvek) is to: - answer reduce air
infiltration/drafts.
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