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- Fluid mechnics subject A block of wood with uniform horizontal section float in water with 25 cm projecting above the surface. The sameblock when placed in a body of oil (sp. Gr = 0.80) floats with 20 cm projecting above the oil surface.1. Determine the height of the block of wood.USE 2015 NSCPFluid subject A block of wood with uniform horizontal section float in water with 25 cm projecting above the surface. The sameblock when placed in a body of oil (sp. Gr = 0.80) floats with 20 cm projecting above the oil surface.2. What is the specific gravity of the wood?
- Short out this problemA solid wood cylinder has diameter 0f 2.0 ft and a height of 4.0 ft. The specific gravity of the wood is 0.60. If the cylinder is placed vertically in oil (s.g. = 0.85), would it be stable? Given: γwood = 37.44 Ib/ft3 , γoil = 53.04 Ib/ft3What are the emission rates of formaldehyde from fiberwood?
- Inlude fbd33 - 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 effectDescrbe the phycial and chemical properties of natural rubber. Discuss some of the application of natural rubber ?