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. 
 

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
[A]. 1, 2, 3
[B]. 2, 1, 3
[C]. 3, 1, 2
[D]. 3, 2, 1

Answer: Option C

Explanation:

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