CSS :: Utilization of Forest Products
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1. |
Soft and heart wood are include: |
A. |
Which are derived from gymnosperms such as pines, evergreen, needle like leaves seeds in cones |
B. |
Hardwoods are those derived from angiosperms such as oak, ash, popular, with broad leaves seed enclosed bearing flowers |
C. |
Wood responsible for sap conduction is termed as sap wood |
D. |
As the wood increases in diameter, cells to the inside are block. This portion of wood is known as heart wood |
E. |
All of the above |
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Answer: Option E
Explanation:
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2. |
The natural defects (in standing trees) are: |
A. |
Knots |
B. |
Reaction wood or abnormal wood |
C. |
Brashness |
D. |
Grains |
E. |
All of the above |
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Answer: Option E
Explanation:
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3. |
Knots means: |
A. |
Live knots: v Tissues are continuous stem tissues. These are called "Tight-knots". |
B. |
Dead knots: When branch wood tissues are dead and not in continuation with main stem tissues |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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4. |
Reaction wood or abnormal wood are: |
A. |
Compression wood (CW) |
B. |
Tension wood (TW) |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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5. |
What is the causes of abnormal wood (CW/TW)? |
A. |
To Evarts and Mason (106) it is due to gravity |
B. |
Metzger (1908) says it is due to tension and compression |
C. |
Wersking and Baily, due to (1942) increase or decrease in plant hormones |
D. |
Philips says (1940), it is due to wind |
E. |
All of the above |
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Answer: Option E
Explanation:
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6. |
What are causes of shakes? |
A. |
To Kochler (1933), due unbalanced growth stresses or forces |
B. |
They may develop as a result of heavy frost |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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7. |
Frost injuries are: |
A. |
Heavy frost |
B. |
Heavy low temperature |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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8. |
What are kinds of frost injuries? |
A. |
Frost rings: are dark brownish lines within the growth rings as a result of injury to the cambium due to the heavy frost |
B. |
Frost cracks: to the very much low temperature, the cracks appear at the basal portion of old trees |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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9. |
Deodar (Cedrus deodara) utilization of timber: |
A. |
Railway sleepers Cross arms |
B. |
Carriage and wagon work |
C. |
House building beams, floor boards |
D. |
Door and windows frames |
E. |
All of the above |
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Answer: Option E
Explanation:
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10. |
Khail (Pinus wallichiana) utilization of timber: |
A. |
Joinery wood |
B. |
Construction |
C. |
Light furniture |
D. |
All of the above |
Answer: Option D
Explanation:
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