76) Seasoning of timber is done for removing __________ from timber

• (a) knots
• (b) sap
• (c) roughness

77) The age of a tree can be known by examining

• (a) cambium layer
• (b) annular rings
• (c) medullary rays
• (d) heart wood

78) The purpose of seasoning of timber is to

• (a) change the direction of grains
• (b) remove voids
• (c) reduce moisture content
• (d) all of the above

79) The moisture content in timber for framework should not exceed

• (a) 5%
• (b) 10%
• (c) 15%
• (d) 20%

80) Which of the following seasoning method is adopted for the rapid seasoning of timber on large scale to obtain any desired moisture context?

• (a) Air seasoning
• (b) Boiling process
• (c) Kiln seasoning
• (d) Water seasoning