UNN Agricultural Science 2012/2013 Past Questions

Practice each question, then open it to see the full details.

A characteristic feature of subsistence agriculture is

A.supply of labour by farm families
B.wholesale of farm harvest
C.purchasing of seeds for planting
D.disease control
E.group farming

The factors affecting formation of soil include the following except

A.organisms
B.time
C.topography
D.catena
E.climate

The equation:
KAlSi₂O₈ + H₂O --> HAlSi₂O₈ + K⁺ + OH^-
represents the process of chemical weathering called

A.hydrolysis
B.solution
C.carbonation
D.oxidation
E.hydration

Which of the following will not contribute to soil formation in Nigeria?

A.carbonation
B.oxidation
C.temperature
D.hydrolysis
E.glaciation

Which of the following parts of tractor need not be regularly checked before use?

A.engine oil and water level
B.power take-off shaft
C.tyres and tyre pressure
D.brake and gear
E.operators and adjustments

Fertilizers that usually contain one nutrient which can be used directly by plants are commonly called

A.organic fertilizers
B.mixed fertilzers
C.inorganic fertilizers
D.compound fertilizers
E.straight fertilizers

Which of the following is not a biotic factor affecting agricultural production?

A.predator
B.soil
C.parasite
D.pest
E.disease

Which of the following factors has greatest influence on crop production?

A.light
B.vegetation
C.water
D.air movement
E.pressure

Jute, cotton and sisal are

A.oil crops
B.perennial crops
C.fibre crops
D.vegetable crops
E.ornamental crops

Rice bran is usually obtained from the paddy after

A.winnowing and boiling
B.threshing and winnowing
C.parboiling and threshing
D.harvesting and milling
E.milling and polishing

The type of crops planted and livestock raised in any given area depends primarily on the

A.type of climate
B.physical factors
C.biotic factors
D.socio-economic factors
E.edaphic factors

Which of the following is a primary product of forest trees?

A.paper
B.particle board
C.timber
D.cardboard
E.pulp

Which of the following is not a pasture legume?

A.Pueraria
B.Calopogonium
C.Centrosema
D.Andropogon
E.Stylosanthes

An effective way of preventing anaemia in piglets raised under intensive system is to provide them with

A.milk supplement
B.salt lick
C.protein supplement
D.drugs containing iron
E.roughages

The castrated male cattle is known as

A.bull
B.heifer
C.castrate
D.weather
E.steer