What is the causes of abnormal wood (CW/TW)?

Related Mcqs:

1. Reaction wood or abnormal wood are:

   A. Compression wood (CW)
   B. Tension wood (TW)
   C. Both (a) & (b)
   D. None of these

2. In practice forests are not normal. They are ‘abnormal’ in ways:

   A. They are overstocked. This is found in forests where there is more area of forest under the older age classes
   B. They are under stocked. This is due to larger proportion of area under immature crops
   C. Both (a) & (b)
   D. None of these

3. In practice forests are not normal. They are ‘abnormal’ in ways:

   A. They are overstocked. This is found in forests where there is more area of forest under the older age classes
   B. They are under stocked. This is due to larger proportion of area under immature crops
   C. Both (a) & (b)
   D. None of these

4. 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

5. A clear-felling with a forest protection over wood and regeneration from coppice is called:

   A. Simple coppice system
   B. Shelterwood coppice system
   C. Uniform system
   D. None of these

6. Uniform shelter wood system means:

   A. If canopy is opened out evenly in making regeneration felling
   B. If the canopy is opened out by creating scattered gaps which are subsequently extended over the whole area
   C. If the canopy is opened out gradually and irregularly with a resulting in a more uneven aged forest
   D. None of these

7. Group shelter wood system means:

   A. If canopy is opened out evenly in making regeneration felling
   B. If the canopy is opened out by creating scattered gaps which are subsequently extended over the whole area
   C. If the canopy is opened out gradually and irregularly with a long regeneration period, resulting in a more uneven aged forest
   D. None of these

8. Source of heating cooking, construction wood and minor produce is:

   A. Fuel wood
   B. Charcoal
   C. Production of construction timber
   D. Wood based industries as livelihood for the people
   E. All of the above

9. Wood consumption reduction is:

   A. Survey and inventory areas potentially rich in biodiversity and list indigenous flora and fauna
   B. Declare areas with rich biodiversity as genetic preserves in the form of managed wildlife sancturies or national parks
   C. Create career specialities in ecosystem, environment and wildlife management
   D. All of the above

10. Poplar and eucalypt wood has proved suitable for new and uses such as ______.

    A. Furniture
    B. Cross arms
    C. Scaffolding
    D. Shuttering
    E. All of the above