All Free Forestry MCQs with Answers

• A. Trees are removed from the upper crown classes in order to open up the canopy
• B. Both (a) & (b)
• C. It favour the development of the most promising trees of the same classes
• D. None of these

Explanation: Crown or high thinning removes competing trees from the upper crown classes and releases the most promising trees in those classes.

• A. In principle from the two methods already discussed
• B. The dominant trees are removed in order to stimulate the growth of the trees of the lower crown classes
• C. The same kind of vigorous trees those are favoured in crown
• D. All of the above

Explanation: Selection thinning combines principles of low and crown thinning, selecting trees for removal from different crown classes.

• A. All of the above
• B. They are less valuable than their neighbours
• C. They are of no special importance with regard to desirable species mixture
• D. They are restricting the development of their neighbours on all sides

Explanation: Selection thinning removes trees that restrict neighbours, are less valuable than them, or are unimportant for maintaining the desired…

• A. The trees to be cut or retained are chosen on the basis of a predetermined spacing
• B. Both (a) & (b)
• C. Or pattern with little or no regard for their position in the crown canopy
• D. None of these

Explanation: Mechanical thinning selects trees for removal or retention according to a predetermined spacing or pattern, largely ignoring their crown…

• A. The attention is concentrated still further on the selection of the stems evenly spaced over the ground
• B. Which are to be retained to maturity or till the last thinning or two
• C. Both (a) & (b)
• D. None of these

Explanation: Free thinning gives special attention to selecting well-spaced stems that will be retained until maturity or the final one or two…

• A. Agricultural growth
• B. Epiphytes
• C. Nematode disease
• D. Grasses

Explanation: Agrostology is the branch of botany concerned with grasses, including their identification, classification, and ecology.

• A. 30%
• B. 40%
• C. 50%
• D. 60%

Explanation: The American Bark Hack method improves resin flow by applying about 40% sulfuric acid to the tapping area.

• A. Pathogens
• B. Insect hormone analogue
• C. Insect repellant
• D. Pheromones

Explanation: Insect hormone analogues disrupt moulting, development, or reproduction rather than killing pests through conventional toxicity, so they…

• A. A flowery garden completes the beauty of a house
• B. It goes to satisfy aesthetic sense along with palate
• C. Both (a) & (b)
• D. None of these

Explanation: A flower garden enhances the beauty of a house and serves an aesthetic purpose; in the source wording, it is also associated with…

• A. Always pick flowers in the early morning or in the evening
• B. Always carry cut flowers heads down to ensure their freshness for a longer period
• C. If you have freshly picked flowers and want them to be preserved for a longer period plunge them in a bucket or sink of water right upto their heads
• D. All of the above
• E. The flowers will remain fresh for a longer period of if you put their stems embedded inside a potato frustum

Explanation: Flowers last longer when picked during the cool parts of the day, carried carefully, and kept immediately supplied with water.

• A. Delonix regia, Bojer
• B. Millettia ovalifolia, Kurz
• C. Erytherina glabrescens, Parker
• D. Cassia fistula, Linn
• E. All of the above

Explanation: Delonix regia, Millettia ovalifolia, Erythrina glabrescens and Cassia fistula are ornamental flowering trees or shrubs commonly used in…

• A. The gold Mohr native of Madagascar is a large deciduous trees
• B. All of the above
• C. Flowers 4 inches across bright-scarlet
• D. Leaves bipinnate

Explanation: Delonix regia, commonly called gulmohar or flame tree, is a Madagascar-origin deciduous tree with bipinnate foliage and large…

• A. A small deciduous tree
• B. Flowers purple
• C. All of the above
• D. In recemes 2-3 inches long

Explanation: Millettia ovalifolia is a small deciduous ornamental tree bearing purple flowers in short racemes, generally about 2–3 inches long.

• A. A shrub or small tree
• B. Leaves 6-9 inches long
• C. None of these
• D. Both (a) & (b)

Explanation: Cassia glauca is usually a shrub or small tree, and its compound leaves are approximately 6–9 inches long.

• A. A small evergreen tree
• B. All of the above
• C. Branches green
• D. Bark thin, smooth

Explanation: Parkinsonia aculeata is recognized by its small evergreen or semi-evergreen habit, thin smooth bark and green branches.

• A. A large evergreen shrub
• B. Leaves 3-4 inches long
• C. All of the above
• D. Staminal-tube much exerted
• E. Coarsely toothed

Explanation: Hibiscus rosa-sinensis is a large evergreen shrub with toothed leaves and a conspicuously protruding staminal tube, a characteristic of…

• A. A large evergreen shrub
• B. Leaves in whorls, elliptic-oblong or oblong-obovate
• C. None of these
• D. Both (a) & (b)

Explanation: Hamelia patens is a large evergreen shrub, and its leaves occur in whorls with elliptic-oblong to oblong-obovate shapes.

• A. A large twinning nearly glabrous shrub with suberect striate branches
• B. Leaves opposite
• C. Flowers 1.2-1.5 inches across
• D. White in lax axillary and terminal cymes
• E. All of the above

Explanation: Jasminum grandiflorum is a nearly hairless twining shrub with opposite leaves and white, fragrant flowers in axillary or terminal cymes.

• A. A comprehensive plan is a prerequisite
• B. All of the above
• C. According to the requirements of the users
• D. The economy in their development and maintenance
• E. This plan should take into account the suitability of lawns and gardens

Explanation: Landscape planning integrates a comprehensive design with site suitability, user needs, and the costs of development and maintenance.

• A. The work scheme of planting constitutes three main categories of the trees for framing the view
• B. Background and border planting
• C. Foundation and border shrubs
• D. All of the above

Explanation: Landscape planting schemes commonly use background and border planting together with foundation and border shrubs to frame views and…