🌲Forestry MCQs
Forestry MCQs
498 MCQs131
Crown thinning or high thinning is:
A& (
BD. None of these
CBoth (
132
Selection thinning is:
AIn principle from the two methods already discussed
BThe dominant trees are removed in order to stimulate the growth of the trees of the lower crown classes
CThe same kind of vigorous trees those are favoured in crown
DAll of the above
133
The classes of trees are removed in selection thinning:
AThey are restricting the development of their neighbours on all sides
BThey are less valuable than their neighbours
CThey are of no special importance with regard to desirable species mixture
DAll of the above
134
Mechanical thinning is:
A& (
BD. None of these
CBoth (
135
Free thinning is:
A& (
BD. None of these
CBoth (
136
What is increment?
AThe increase in girth, diameter, basal area, height, volume, quality
BValue of individual tree or crops during a given period
CUtilizable portions of total woody growth goes on increasing
DAll of the above
137
Variation of volume increment with age is:
A& (
BD. None of these
CBoth (
138
The fundamental objectives of thinning are:
A& (
BD. None of these
CBoth (
139
Dominant tree: Including all trees which form the upper most leaf canopy and have their leading shoots free. These are usually sub-divided into:
APredominant trees comprising all the largest trees which determine the general top level of the canopy
BCodominant trees which fall short of this, averaging about 5/6th of the height of predominant
CTrees with forked leader and similar defects
DAll of the above
140
Dominated trees (d) is:
A& (
BD. None of these
CBoth (