Match the following defects in timber with their descriptions
|
Defect |
Description |
||
|
1. |
Checks |
(A) |
longitudinal separations in the wood between the annual rings |
|
2. |
Shakes |
(B) |
characterised by swelling caused by the growth of layers of sapwood over wounds after the branch has been cut off in an irregular manner |
|
3. |
Rindgall |
(C) |
sign of decay appearing in the form of yellow or red tinge or discolouration of overmatured trees |
|
4. |
Foxiness |
(D) |
longitudinal crack which is usually normal to the annual rings |
1
1 - B, 2 - A, 3 - D, 4 - C
2
1 - D, 2 - A, 3 - B, 4 - C
3
1 - D, 2 - C, 3 - B, 4 - A
4
1 - C, 2 - A, 3 - B, 4 - D
5
1 - A, 2 - D, 3 - B, 4 - C