1. Strength of properly dried wood is significantly higher than that of green (freshly cut) wood. 1. True (ii) False
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- (c) In general, wood has greater specified strength for compression perpendicular to grain than that for tension perpendicular to grain. (Determine the following if it is true or false The wood grains on bending test is subjected to tension alone Wood knots do not affect the strength of wood Metal furnace by-product like slags are used as alternative aggregatesc) Discuss the non-isotropic characteristics of wood.
- Since the safe normal stress of the wood used for the beam and loading condition shown in the figure is 12 MPa, determine the optimum cross-section height of the beam (mm).In general, wood is dried to _____ percent moisture for typical structural application rather than using it in green condition.The state at which bound water in wood is at maximum known as O a. hysteresis O b. EMC O C. O d. MC fiber saturation point
- Question 7 When wood is stretched in the longitudinal direction, most of the stress is taken by a. hydrogen bonds O b. covalent bondsTwo pieces of wood, 60 mm by 120 mm each are glued together along the 40° joint. The permissible normal stress in the glue is limited to 100 MPa. The maximum safe load that can be applied at the joint is P+ 40° 60 mm P= 40 GPa) and (Ew The beam shown carries load as shown, determine the actual stress of wood = 200 GPa) part of the composite beam. steel (Es 50 kN 50 mm 10 kN/m 8 тт steel wood 2 m 3 m 200 тm 200 mm