Match List-I (Name of defect) with List-II (Definition) and select the correct answer using the codes given below the list :
| List-I (Name of Defect) | List-II (Definition) |
| A. Cupping | 1. Caused by wood limbs encased by wood of the free trunk |
| B. Bowing | 2. Caused by grain irregularities in the board and can be eliminated by proper stacking |
| C. Chucks | 3. Small cracks appearing at the ends of boards caused by too rapid drying |
| D. Knots | 4. Unequal shrinking in the radial and tangential direction. |
1
A-1 B-2 C-3 D-4
2
A-4 B-3 C-2 D-1
3
A-1 B-3 C-2 D-4
4
A-4 B-2 C-3 D-1