Reaction wood or abnormal wood are:

Related Mcqs:

1. 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

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. Irregular 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

6. The overall weight of quantity of wood is affected by the factors:

   A. Density
   B. Moisture content
   C. Bark and foreign material
   D. All of the above

7. Fuel wood is:

   A. Wood has a significant role to play in meeting the domestic energy requirements
   B. Wood fuels must replace commercial fuels to save the scarce foreign exchange and release natural gas for better and more productive utilization
   C. Both (a) & (b)
   D. None of these

8. Development of wood based industry is based on:

   A. Keep all wood industry in the private sector
   B. Provide research and technical advice for improved wood manufacturing processes
   C. Both (a) & (b)
   D. None of these

9. Improve wood utilizations means:

   A. Introduce more efficient wood burning stoves
   B. Encourage use of reconstituted wood over solid wood
   C. Research and develop more efficient and suitable logging technology
   D. Evolve technology for industrial uses of inferior and small sized woods
   E. All of the above

10. Pakistan Forest Institute has been helping in various government organization such as _______ with technical opinion on planting, wood preservation, identification and utilization etc:

    A. WAPDA
    B. Railways
    C. Wah Ordinance Factory
    D. HCM
    E. All of the above