What are kinds of frost injuries?

Related Mcqs:

1. Frost injuries are:

   A. Heavy frost
   B. Heavy low temperature
   C. Both (a) & (b)
   D. None of these

2. Injuries by diseases is / are:

   A. Throughout their life
   B. Seeds decay and seedlings are killed by damping-off
   C. Generally serious in the coniferous nurseries
   D. All of the above

3. Injuries by insects is / are:

   A. An essential part of the forest ecosystem
   B. Some are beneficial; quite a few are serious pests of trees and wood products
   C. Tonica inviferana, a semal shoot borer, Ascotis imparata,
   D. A bakain defoliator and Margaronia phloalis a defoliator of mulberry are serious pests of other tree species grown in forest plantations
   E. All of the above

4. The injuries are generally caused by:

   A. Unnecessary haste
   B. Use of improper tools
   C. Pruning during the growing season when the bark is loose
   D. All of the above

5. Plants are killed in winter by frost:

   A. Because there is no transpiration
   B. Because respiration ceases at such a low temperature
   C. Because no photosynthesis takes place at such a low temperature
   D. Because of desiccation and mechanical damage to the tissues

6. The number of kinds of food chains:

   A. One
   B. Two
   C. Three
   D. Four

7. The major kinds of rotation are:

   A. Physical
   B. Silvicultural
   C. Technical
   D. Rotation of the greatest volume production
   E. All of the above

8. The kinds of measurements in forest mensuration:

   A. Cut/felled material
   B. Individual trees
   C. Crop or stand
   D. Standing tree
   E. All of the above

9. Kinds of volume tables is / are:

   A. General Volume tables
   B. Local Volume Tables
   C. Form Quotient Volume Tables
   D. All of the above

10. Several kinds of minor forest produce are available from the forested areas; these include _________

    A. Flosses, medicinal plants
    B. Gums, essential oils rosin and turpentine tannins
    C. Silk and lack production
    D. All of the above