engineering recuitment Maharashtra WCD Water Conservation Officer Mock Test 2024 Construction Materials and Management Timber
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
1
1, 2, 3
2
2, 1, 3
3
3, 1, 2
4
3, 2, 1