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Consider the following statements regarding timber: 1. The strength of timber increases by Kiln seasoning 2. Cutting of wood is to be done prior to treatment. 3. Water seasoning is good for prevention of warping. 4. ASCU treatment enhances the strength of wood Which of the above statements are correct?

Consider the following statements regarding timber: 1. The strength of timber increases by Kiln seasoning 2. Cutting of wood is to be done prior to treatment. 3. Water seasoning is good for prevention of warping. 4. ASCU treatment enhances the strength of wood Which of the above statements are correct? Correct Answer 1, 2 and 3 only

Statement I & Statement III- True

Any type of seasoning of timber causes increases in strength, durability, workability and resilience and reduces the shrinkage and warping stresses.

Kiln seasoning means seasoning is carried out in air tight chambers and it results uniform drying of timber.

Water seasoning means sap of wood section is removed by weathering action of water after that it is subjected to natural drying. This results in reduction of twist and warping.

Statement II – True

The correct sequence for processing of timber is:

Felling of tress → Seasoning (reduction in moisture content) of timber → Conversion (cutting) of Timber → Preservation (treatment) of timber.

Hence, all wood processes like cutting to size, boring, etc. shall be done prior to treatment.

Statement IV- False

ASCU treatment is a method of preservation of timber, which results in high durability of wood and not strength.

In this method, one part of Arsenic pentaoxide, 3 parts of Copper Sulphate and 4 parts of Potassium dichromate are mixed and applied over timber which increases its resistance against white ants and hence, durability increases.

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