engineering recuitment OPSC Assistant Industries Officer Mock Test 2025 Construction Materials and Management Timber
Excrescences in wood are:
1. Defects found in trees
2. Formed due to injuries inflicted on trees when they are growing
3. Defects which render wood suitable as firewood only
1
1, 2 and 3
2
1 and 2 only
3
1 and 3 only
4
2 and 3 only