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Consider the following methods of preservation of timber : 1. Dipping 2. Brushing or spraying 3. Pressure impregnation The correct sequence in decreasing order of the effectiveness of these methods of preservation is

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Consider the following methods of preservation of timber : 1. Dipping 2. Brushing or spraying 3. Pressure impregnation The correct sequence in decreasing order of the effectiveness of these methods of preservation is Answer: 3, 1, 2

Question context

This question is part of 🚧 Civil Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.