ICAR AIEEA-PG — Forestry/Agroforestry & Silviculture (Major Subject Group 09) · India · National Testing Agency for ICAR
Original practice questions written to the published syllabus · not past papersICAR AIEEA-PG — Forestry/Agroforestry & Silviculture (Major Subject Group 09) is a postgraduate admission exam run by National Testing Agency for ICAR, for candidates in India. Computer-based, 120 minutes, 120 MCQs, +4 / −1, English only. One paper for the whole subject group.
Source: icar.org.in.
Checked against the exam body's published information. Formats and fees change; confirm the current edition there before you book.
Recall MCQs: breast-height conventions, instruments, form factors of solids, Huber/Smalian/Newton, basal area, site quality classes.
Measuring single trees, logs and stands: diameter, height, form, volume, biomass and growth, with the instruments and formulas used in the field.
Our 26 ICAR AIEEA-PG questions in this subject: 6 easy, 19 medium, 1 hard, across 13 units.
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
These 10 were written to ICAR AIEEA-PG and are not shown on any other exam's page.
In most countries that use metric units, diameter at breast height is measured at what height above ground?
D. 1.3 m, on the uphill side
Breast height is 1.3 m in most metric countries; the USA uses 4.5 ft (1.37 m), as India traditionally has. On slopes, ground level is taken on the uphill side. Stump height (about 0.3 m) is used for stump measurements, not dbh.
Hypsometers based on similar triangles, such as the classic scale-and-pole types, work on which principle?
B. Geometric, comparing similar triangles with no angle measurement
Similar-triangle instruments are geometric: they compare the tree with a stick or pole of known length. Clinometers and the Abney level are trigonometric; wedge prisms are angle gauges for basal area, not height.
Crown width of a standing tree is normally measured as:
A. The mean of two perpendicular drip-line spreads projected to the ground
Crown width is the horizontal spread of the crown, averaged over two perpendicular directions with the crown edge projected vertically. Crown length ÷ total height is the crown ratio.
The quarter-girth (Hoppus) volume of a round log, compared with its true volume from the same mid-girth, is:
D. About 78.5% (π/4) of the true volume
Hoppus volume = (G/4)²L = G²L/16, true volume = G²L/(4π); their ratio is 4π/16 = π/4 ≈ 0.785. The Hoppus cubic foot equals 1.273 true cubic feet, which is where the 127% figure comes from.
The form factor of a cone, measured from its base, is:
A. 1/3
A cone's volume is one-third of the cylinder with the same base and height, so f = 1/3. The paraboloid has 1/2, the neiloid 1/4 and the cylinder 1.
Which solid has a form factor of 1/2?
D. Paraboloid
A paraboloid's volume is half its circumscribing cylinder. Cone 1/3, neiloid 1/4, cylinder 1.
In constructing a volume table, the sample trees should:
A. Cover the full range of diameters and heights over which the table will be used
A volume equation is reliable only within its data range. Sampling across all sizes avoids extrapolation, which is one of the commonest misuses of volume tables.
Basic wood density, used to convert volume to biomass, is defined as:
B. Oven-dry mass divided by green volume
Basic density is oven-dry mass per unit green (fresh, fully swollen) volume, which matches inventory volumes measured on standing trees. Green mass per green volume is green density, which includes water.
Mean annual increment reaches its maximum at the point where:
B. Current annual increment equals mean annual increment
While CAI exceeds MAI, the average rises; once CAI drops below MAI, the average falls. MAI peaks exactly where the curves cross. CAI peaks earlier, and volume keeps rising after MAI has culminated.
Site index is defined as:
B. The mean height of the dominant trees at a stated base age
Site index uses dominant height at a base age because height of the dominant trees reflects site and is little affected by density or thinning from below.
This plan follows where our questions actually fall, so the time goes where the marks are likely to be. It is our reading of the syllabus, not the exam body's weighting.
Read the manual chapters for these first and do every worked question you can find on them.
Aim for one sitting per unit, then mixed questions across them.
Learn the definitions, classifications and standard numbers; these units are more often recalled than worked.
Come back to these after a first pass, untimed, and read every explanation, including for the options you rejected.
Do these early in revision so they are fast on the day.
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