wrong for wood? A) It is possible to greatly increase the fire resistance of wood by injecting borax and aluminum salt chemical liquids into logs or coating them with non-flammable materials. B) Logs are cut mainly in 4 ways; parallel mower, prismatic mower, quarter mower and half mower. C) Dipping is the deep protection type of wood.
wrong for wood? A) It is possible to greatly increase the fire resistance of wood by injecting borax and aluminum salt chemical liquids into logs or coating them with non-flammable materials. B) Logs are cut mainly in 4 ways; parallel mower, prismatic mower, quarter mower and half mower. C) Dipping is the deep protection type of wood.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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33 - Which of the following judgments is wrong for wood?
A) It is possible to greatly increase the fire resistance of wood by injecting borax and aluminum salt chemical liquids into logs or coating them with non-flammable materials.
B) Logs are cut mainly in 4 ways; parallel mower, prismatic mower, quarter mower and half mower.
C) Dipping is the deep protection type of wood.
D) It is immersed in a short or long-term hot antiseptic bath depending on the type of wood. For these baths, materials such as copper sulphate, zinc chloride and lysol are mostly used.
E) The most negative side of wooden material is its lack of fire resistance. Impossible to completely save lean wood from fire effect
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