Q. The wooden poles well impregnated with creosite oil or any preservative compound have life (Solved)
1. from 2 to 5 years
2. 10 to 15 years
3. 25 to 30 years
4. 60 to 70 years
- c. 25 to 30 years
1. from 2 to 5 years
2. 10 to 15 years
3. 25 to 30 years
4. 60 to 70 years