JAMB Agricultural Science 2022 past questions
Ten questions from the 2022 JAMB Agricultural Science paper, with answers and explanations. We hold 77 questions from this paper, and the Skolra app has all of them.
JAMB Agricultural Science 2022 questions and answers
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1.
Which of the following is a powerful and expensive multipurpose motor vehicle used for lifting or pulling farm implements?
- ACutlass
- BRidger
- CWheelbarrow
- DTractorCorrect
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Answer: D
The tractor is correct. A tractor is a powerful, expensive, multipurpose motor vehicle used on the farm for lifting, pulling and powering implements such as ploughs, harrows, ridgers, planters and trailers through its drawbar and power take-off (PTO).
- A
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2.
Legumes that produce edible seeds are known as
- APulsesCorrect
- BFodder legumes
- COilseed legumes
- DCover crops
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Answer: A
Pulses is the correct term for legumes that are cultivated mainly for their edible dry seeds, such as cowpea, pigeon pea, soybean and other beans. This is a standard classification used in agricultural science based on the primary use of the legume crop.
Fodder legumes is wrong because these are legumes like Centrosema and Calopogonium grown mainly to feed livestock as forage, not for their seeds as human food.
- A
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3.
______ introduce new ideas of farming seen in other places to their dwelling.
- ALaggards
- BLate majority
- CEarly majority
- DInnovatorsCorrect
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Answer: D
Innovators are the category of farmers in the adoption of innovation process who travel, observe practices in other places, and bring new farming ideas back to introduce to their own community. They are the first to try new methods and are the source through which new agricultural ideas enter a locality.
- A
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4.
___________ is the process which assist farmers through educational procedures in improving farming methods
- AAgricultural research
- BAgricultural extensionCorrect
- CAgricultural mechanization
- DAgricultural cooperation
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Answer: B
Agricultural extension is correct. It is the educational process by which agricultural scientists and extension officers pass improved farming knowledge, skills and methods to farmers, helping them raise productivity and adopt better practices.
- A
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5.
__________ is a pictorial presentation meant to educate or inform the literate audience
- AFlannel graph
- BCartoon
- CPosterCorrect
- DChart
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Answer: C
Poster is correct. In agricultural extension teaching aids, a poster is a pictorial presentation that combines pictures with short written captions or words, making it suited for a literate audience who can read the message while viewing the picture.
- A
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6.
_________ is the artificial watering of farmland
- AMulching
- BIrrigationCorrect
- CLeaching
- DDrainage
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Answer: B
Irrigation is the artificial supply of water to farmland to support crop growth, especially where rainfall is insufficient or unreliable. Methods include sprinkler, drip, and furrow irrigation.
Drainage is the wrong choice because it is the opposite process — the artificial removal of excess water from farmland, not the supply of water.
- A
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7.
One of the followings is not a type of pond
- ADrainage pondCorrect
- BSpawning pond
- CRearing pond
- DNursery pond
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Answer: A
In fish farming, ponds are classified according to the stage of the fish's life cycle or the purpose they serve. The recognised types include the nursery pond (for young fry), the rearing pond (where growing fingerlings are kept until they mature), and the spawning pond (where broodstock breed and lay eggs).
- A
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8.
Which of the following methods of storage is used for grains
- ABarn
- BRhumbu
- CCrib
- DSiloCorrect
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Answer: D
Silo is correct. A silo is an airtight storage structure (tower or underground pit) used for keeping threshed/shelled grains such as maize, rice, sorghum and guinea corn. Its airtight nature reduces moisture, pest and mould damage, making it the standard structure for grain storage.
- A
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9.
The process whereby the embryo of a seed resumes growth under favourable conditions is called
- AGerminationCorrect
- BPollination
- CFertilization
- DDormancy
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Answer: A
Germination is the process whereby the embryo inside a seed resumes growth and develops into a seedling once favourable conditions such as adequate moisture, warmth and oxygen are present.
- A
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10.
Primary tillage is also known as
- AHarrowing
- BRidging
- CPloughingCorrect
- DMulching
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Answer: C
Ploughing is correct. Primary tillage is the first and deepest soil operation carried out on the farmland; it breaks up the soil, turns it over, and buries weeds and crop residues to loosen a rough seedbed. This is exactly what ploughing does, so primary tillage is also called ploughing.
Harrowing is wrong because it is secondary tillage — it is done after ploughing to break clods and produce a fine seedbed.
- A
The questions come from past JAMB, WAEC and NECO papers. We use software to help write the answer options and explanations, and every answer is checked twice before it goes on the site. How we check
Spotted a wrong answer? Tell us from the app or on the contact page and we check it.
Practise all 77 questions we hold from the 2022 paper, on a timed CBT screen
Every question has the answer and an explanation, in the Skolra app.