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A good preservative should:(a) Be poisonous(b) Be unaffected by heat and moisture(c) Have pleasant odour(d) Have white colourI have been asked this question in semester exam.The origin of the question is Defects and Preservation of Timber in chapter Materials for Construction of Basic Civil Engineering

Answer» RIGHT OPTION is (b) Be unaffected by heat and moisture

For explanation: A GOOD PRESERVATIVE should be poisonous to fungi, insects, etc.It should odourless and COLOURLESS.


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