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11.

Necessity for tending is / are:

A.	For continuous healthy development	B.	A tree crop requires to be protected from pests and diseases
C.	The individual trees must have adequate room to grow	D.	If any infected trees are present
E.	All of the above

12.

Weeding is meant for:

A.	As a tending operation done in a seedling crop involving the removal	B.	Cutting back of any sort of weed growth, even woody
C.	That is interfering with then growth of the corp.	D.	It merges with cleaning as the seedling grow into saplings
E.	All of the above

13.

Weeding is a term:

A.	That denotes the removal of all plants competing with the crop species in seedling stages regardless of whether their crowns are above, beside	B.	Or below those of the desirable trees
C.	Both (a) & (b)	D.	None of these

14.

Cleaning is:

A.	As a tending operation done in the sapling crop, particularly just before	B.	With the first thinning, involving the removal
C.	Cutting back of all inferior growth, climbers	D.	All of the above

15.

The major types of vegetation removed is:

A.	There is no need to eliminate any plant that is not going to suppress, endanger	B.	Or hamper the growth of a distinctly desirable member of the new stand
C.	Both (a) & (b)	D.	None of these

16.

Climber control is:

A.	Are a great menace to young regeneration	B.	Must be closely watched
C.	The course of a month or two	D.	They may pull over the saplings, break the leading shoots
E.	All of the above

17.

The elimination of branches by the physical and biotic agencies of the environment is called:

A.	Natural	B.	Self-pruning
C.	Both (a) & (b)	D.	None of these

18.

The major steps of natural pruning is:

A.	Killing of the branches	B.	Shedding of the dead branches
C.	Occulusion or healing over of the branch stub	D.	All of the above

19.

Artificial pruning is:

A.	The production of clear material on rotations shorter than that would be required with natural pruning	B.	The necessary period of growth after treatment is rather long, so the practice ordinarily must be coupled with thinning to stimulate diameter growth
C.	Both (a) & (b)	D.	None of these

20.

Effect of the tree in pruning is:

A.	The contrary, properly conducted pruning is not harmful to the tree	B.	Careless pruning can, however, cause injury to the bole, leaving wounds extending through the bark into the cambium and even to the wood
C.	Both (a) & (b)	D.	None of these