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Civil and Mechanical

J Agric 15

Written by Admin March 30, 2025October 11, 2025

Agric Jamb 2015

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Question 1 of 48

1. Question

The use of animal traction is limited in the forest zones of West Africa because of the

topography of the forest land
Correct Incorrect Correct answer

presence of tsetseflies
Correct Incorrect Correct answer

high amount of rainfall
Correct Incorrect Correct answer

culture of the people
Correct Incorrect Correct answer

Correct

Incorrect
Question 2 of 48

2. Question

The correct sequence of feed utilization in farm animals is

digestion-ingestion-absorption-assimilation
Correct Incorrect Correct answer

ingestion-digestion-assimilation-absorption
Correct Incorrect Correct answer

ingestion-digestion-assimilation
Correct Incorrect Correct answer

digestion-assimilation-ingestion-absorption
Correct Incorrect Correct answer

Correct

Incorrect
Question 3 of 48

3. Question

Limitations of farm mechanization in West Africa do not include

Land fragmentation
Correct Incorrect Correct answer

high capital investment
Correct Incorrect Correct answer

availability of spare parts
Correct Incorrect Correct answer

high level technical know-how
Correct Incorrect Correct answer

Correct

Incorrect
Question 4 of 48

4. Question

Which of the following properties of soil determines its water-holding capacity? I. Texture II. pH III. Colour IV. Structure

I and II only
Correct Incorrect Correct answer

I and IV only
Correct Incorrect Correct answer

II and III only
Correct Incorrect Correct answer

III and IV only
Correct Incorrect Correct answer

Correct

Incorrect
Question 5 of 48

5. Question

The forest management system which involves the planting of both food crops and forest trees on the same piece of land at the same time is known as

selective exploitation
Correct Incorrect Correct answer

taungya
Correct Incorrect Correct answer

regeneration
Correct Incorrect Correct answer

afforestation
Correct Incorrect Correct answer

Correct

Incorrect
Question 6 of 48

6. Question

Piglet anaemia can be controlled by using

Sulphur drugs
Correct Incorrect Correct answer

iron drugs
Correct Incorrect Correct answer

anthelmintics
Correct Incorrect Correct answer

antibiotics
Correct Incorrect Correct answer

Correct

Incorrect
Question 7 of 48

7. Question

The following are advantages of sub-surface irrigation except that

it is suitable for soils with low water holding capacity
Correct Incorrect Correct answer

it can be used only for specific types of crops
Correct Incorrect Correct answer

the rate of evaporation is greatly reduced
Correct Incorrect Correct answer

it reduces the incidence of pests
Correct Incorrect Correct answer

Correct

Incorrect
Question 8 of 48

8. Question

Which of the following insects transmits swollen shoot disease of cocoa?

stem borer
Correct Incorrect Correct answer

mealybug
Correct Incorrect Correct answer

Whitefly
Correct Incorrect Correct answer

Scale insect
Correct Incorrect Correct answer

Correct

Incorrect
Question 9 of 48

9. Question

A detrimental effect of bush burning is that it

destroys soil organic matter
Correct Incorrect Correct answer

sterilizes the soil
Correct Incorrect Correct answer

Destroy weed seeds
Correct Incorrect Correct answer

Adds potash to the soil
Correct Incorrect Correct answer

Correct

Incorrect
Question 10 of 48

10. Question

A regulatory control of diseases in crop production is

Rouging
Correct Incorrect Correct answer

Quarantine
Correct Incorrect Correct answer

Crop rotation
Correct Incorrect Correct answer

Soil tilage
Correct Incorrect Correct answer

Correct

Incorrect
Question 11 of 48

11. Question

The main objectives of establishing forest in the arid regions is to

check desert enroachment
Correct Incorrect Correct answer

Provide firewood for cooking
Correct Incorrect Correct answer

Provide bush meat
Correct Incorrect Correct answer

improve the beauty of the environment
Correct Incorrect Correct answer

Correct

Incorrect
Question 12 of 48

12. Question

If T represents the gene for tallness while t represents dwarfness. When a tall (TT) crop is crossed with a dwarf (tt) crop, the resultant crop will be

100% dwarf
Correct Incorrect Correct answer

100% tall
Correct Incorrect Correct answer

50% tall and 50% dwarf
Correct Incorrect Correct answer

75% tall and 25% dwarf
Correct Incorrect Correct answer

Correct

Incorrect
Question 13 of 48

13. Question

The correct sequence for the use of coupled implements for land preparation is

plough,horrow and ridger
Correct Incorrect Correct answer

harrow,ridger and plough
Correct Incorrect Correct answer

plough,ridger and harrow
Correct Incorrect Correct answer

harrow,plough and ridger
Correct Incorrect Correct answer

Correct

Incorrect
Question 14 of 48

14. Question

Which of the following groups of rocks is formed as a result of volcanic eruption?

limestone,basalt and shale
Correct Incorrect Correct answer

basalt,granite and pumice
Correct Incorrect Correct answer

sandstone,granite and quartzite
Correct Incorrect Correct answer

marble,gneiss and shale
Correct Incorrect Correct answer

Correct

Incorrect
Question 15 of 48

15. Question

Close to the time of harvesting of cotton, sunshine is needed to ensure the production of boils that are

Big
Correct Incorrect Correct answer

Light
Correct Incorrect Correct answer

Not mouldy
Correct Incorrect Correct answer

Not open
Correct Incorrect Correct answer

Correct

Incorrect
Question 16 of 48

16. Question

Tomatoes are staked in order to

accelerate their growth
Correct Incorrect Correct answer

induce flowering
Correct Incorrect Correct answer

accelerate fruit ripening
Correct Incorrect Correct answer

prevent rotting of fruits
Correct Incorrect Correct answer

Correct

Incorrect
Question 17 of 48

17. Question

The instrument which enables a surveyor to find the direction of a base line is

abney level
Correct Incorrect Correct answer

Ranging pole
Correct Incorrect Correct answer

plumb bob
Correct Incorrect Correct answer

magnetic compass
Correct Incorrect Correct answer

Correct

Incorrect
Question 18 of 48

18. Question

Corms, rhizomes and tubers are examples of

Underground stems
Correct Incorrect Correct answer

Underground roots
Correct Incorrect Correct answer

Modified leaves
Correct Incorrect Correct answer

Earial stems
Correct Incorrect Correct answer

Correct

Incorrect
Question 19 of 48

19. Question

The data for feed consumption and weighing gain of four farm animals labelled P, Q, R and S are shown below.
P-50kg feed consumed and 20kg weight gained Q-90kg feed consumed and 30kg weight gained R-100kg feed consumed and 25kg weight gained S - 150kg feed consumed and 30kg weight gained.

The feed conversion efficiency of the poorest weight gainer is

0.4
Correct Incorrect Correct answer

0.33
Correct Incorrect Correct answer

0.25
Correct Incorrect Correct answer

0.2
Correct Incorrect Correct answer

Correct

Incorrect
Question 20 of 48

20. Question

In preparing for parturition of a sow,warmth should be provided to

promote growth of hair of the young
Correct Incorrect Correct answer

make the young suckle colostrum
Correct Incorrect Correct answer

prevent anaemia in the young
Correct Incorrect Correct answer

prevent chilling of the young
Correct Incorrect Correct answer

Correct

Incorrect
Question 21 of 48

21. Question

In which layer of the soil profile does most biological activity occur?

parent material
Correct Incorrect Correct answer

D-horizon
Correct Incorrect Correct answer

C-horizon
Correct Incorrect Correct answer

A-horizon
Correct Incorrect Correct answer

Correct

Incorrect
Question 22 of 48

22. Question

Government plays important role in the development of agriculture through the following means except

provision of subsidies
Correct Incorrect Correct answer

training of farmers children
Correct Incorrect Correct answer

establishment of agricultural development programmes
Correct Incorrect Correct answer

establishment of farm settglements
Correct Incorrect Correct answer

Correct

Incorrect
Question 23 of 48

23. Question

A sow that is not producing milk after farrowing should be given

Oxytocin
Correct Incorrect Correct answer

Antibiotics
Correct Incorrect Correct answer

anthelmintric drug
Correct Incorrect Correct answer

sulphaquinoxaline
Correct Incorrect Correct answer

Correct

Incorrect
Question 24 of 48

24. Question

Which of the following diseases commonly occur during brooding? I. yolk sac infection II. coccidiosis III. fowlpox IV. pullorum

I,II and III only
Correct Incorrect Correct answer

I,II and IV only
Correct Incorrect Correct answer

I,III and IV only
Correct Incorrect Correct answer

I,II,III and IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 25 of 48

25. Question

Soil water that is available for root absorption at field capacity is

Capillary water
Correct Incorrect Correct answer

hygroscopic water
Correct Incorrect Correct answer

Gravitational water
Correct Incorrect Correct answer

Superfluous water
Correct Incorrect Correct answer

Correct

Incorrect
Question 26 of 48

26. Question

The weight of a sheep increased from 25kg to 45kg in two months. If the total consumption during the period was 60kg,determine the feed conversion ratio.

1.1
Correct Incorrect Correct answer

1.2
Correct Incorrect Correct answer

3.1
Correct Incorrect Correct answer

4.1
Correct Incorrect Correct answer

Correct

Incorrect
Question 27 of 48

27. Question

Which of the following factors does not influence the distribution of cattle in West Africa?

Pastures
Correct Incorrect Correct answer

Light
Correct Incorrect Correct answer

Disease
Correct Incorrect Correct answer

Rainfall
Correct Incorrect Correct answer

Correct

Incorrect
Question 28 of 48

28. Question

Which of the following statements about agricultural development is true? It leads to I. increased processing of produce II. increased food production III. high productivity IV. increased agricultural labour force

I, II and III only
Correct Incorrect Correct answer

I,II and IV only
Correct Incorrect Correct answer

I,III and IV only
Correct Incorrect Correct answer

II,III and IV only
Correct Incorrect Correct answer

Correct

Incorrect
Question 29 of 48

29. Question

If the recommended spacing for a tree crop is 2.5cm by 4.0m.determine the number of seedlings required to plant a 2 hectare farmland.

1000
Correct Incorrect Correct answer

2000
Correct Incorrect Correct answer

10,000
Correct Incorrect Correct answer

20,000
Correct Incorrect Correct answer

Correct

Incorrect
Question 30 of 48

30. Question

Close to the time of harvesting of cotton, sunshine is needed to ensure the production of boils that are

Big
Correct Incorrect Correct answer

Light
Correct Incorrect Correct answer

Not Mouldy
Correct Incorrect Correct answer

Not open
Correct Incorrect Correct answer

Correct

Incorrect
Question 31 of 48

31. Question

Crop rotation decreases the incidence of pests by

breaking life cycles of pests
Correct Incorrect Correct answer

attracting pest predators
Correct Incorrect Correct answer

sterilizing the soil
Correct Incorrect Correct answer

maintaining soil fertility
Correct Incorrect Correct answer

Correct

Incorrect
Question 32 of 48

32. Question

Which of the following statements is correct about micro-nutrients? They

promote formation of only root nodules
Correct Incorrect Correct answer

are required by plants in very small quantities
Correct Incorrect Correct answer

are fixed into the soil through microbial activity
Correct Incorrect Correct answer

increase crop tolerance to pest attack
Correct Incorrect Correct answer

Correct

Incorrect
Question 33 of 48

33. Question

If T represents the gene for tallness while t represents dwarfness. The genotypic ratio of the second filial generation will be

3:1
Correct Incorrect Correct answer

1:2:1
Correct Incorrect Correct answer

2:2
Correct Incorrect Correct answer

4:0
Correct Incorrect Correct answer

Correct

Incorrect
Question 34 of 48

34. Question

The data for feed consumption and weighing gain of four farm animals labelled P, Q, R and S are shown below.
P -50kg feed consumed and 20kg weight gained Q -90kg feed consumed and 30kg weight gained R -100kg feed consumed and 25kg weight gained S - 150kg feed consumed and 30kg weight gained.
Which of the following must efficient feed converter?

P
Correct Incorrect Correct answer

Q
Correct Incorrect Correct answer

R
Correct Incorrect Correct answer

S
Correct Incorrect Correct answer

Correct

Incorrect
Question 35 of 48

35. Question

The device which would help to stabilize heat in an incubator is the

Thermometer
Correct Incorrect Correct answer

Hygrometer
Correct Incorrect Correct answer

Barometer
Correct Incorrect Correct answer

Thermostat
Correct Incorrect Correct answer

Correct

Incorrect
Question 36 of 48

36. Question

Which of the following factors are causes of deforestation in West Africa? I. expansion of cultivated land II. high population growth rate III. conservation of wildlife in game reserves IV. urban growth

I,II and III only
Correct Incorrect Correct answer

II,III and IV only
Correct Incorrect Correct answer

I,II and IV only
Correct Incorrect Correct answer

I,II,III and IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 37 of 48

37. Question

Which of the following statements about soil organisms is false?

soil pH will attack population of soil organisms
Correct Incorrect Correct answer

population of soil living organisms is increased with increase in soil organic matter
Correct Incorrect Correct answer

soil with good texture and structure cannot harbour soil microbes
Correct Incorrect Correct answer

soil temperature affects the activities of soil organisms
Correct Incorrect Correct answer

Correct

Incorrect
Question 38 of 48

38. Question

Under the commercial land tenure system, farmers find it difficult to secure loans because

land holdings are small and fragmented
Correct Incorrect Correct answer

They are poor
Correct Incorrect Correct answer

land holdings cannot be used as security
Correct Incorrect Correct answer

They are mostly illiterates
Correct Incorrect Correct answer

Correct

Incorrect
Question 39 of 48

39. Question

Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in

Potassium
Correct Incorrect Correct answer

Phosphorus
Correct Incorrect Correct answer

Zinc
Correct Incorrect Correct answer

Nitrogen
Correct Incorrect Correct answer

Correct

Incorrect
Question 40 of 48

40. Question

Pineapple is widely propagated using

Seeds
Correct Incorrect Correct answer

Suckers
Correct Incorrect Correct answer

Slips
Correct Incorrect Correct answer

Cuttings
Correct Incorrect Correct answer

Correct

Incorrect
Question 41 of 48

41. Question

The following crops will enrich the soil with nitrates except

calopogonium
Correct Incorrect Correct answer

pueraria
Correct Incorrect Correct answer

centrosema
Correct Incorrect Correct answer

exoriepus
Correct Incorrect Correct answer

Correct

Incorrect
Question 42 of 48

42. Question

Poaching is prohibited in game reserves to

reduce wildlife population
Correct Incorrect Correct answer

conserve wildlife
Correct Incorrect Correct answer

starve hunters
Correct Incorrect Correct answer

protect hunters from wild animals
Correct Incorrect Correct answer

Correct

Incorrect
Question 43 of 48

43. Question

In crop production, ginger is propagated by

Seed
Correct Incorrect Correct answer

Bulb
Correct Incorrect Correct answer

Rhyzome
Correct Incorrect Correct answer

Corm
Correct Incorrect Correct answer

Correct

Incorrect
Question 44 of 48

44. Question

Which of the following statement is a disadvantage of human power? it

controls other sources of farm power
Correct Incorrect Correct answer

brings about least damage
Correct Incorrect Correct answer

is easily available and controlled
Correct Incorrect Correct answer

has low output
Correct Incorrect Correct answer

Correct

Incorrect
Question 45 of 48

45. Question

Agriculture contributes to the economy of West African Countries through the following means except

reduction of poverty through job creation
Correct Incorrect Correct answer

supply of armaments for territorial defence
Correct Incorrect Correct answer

provision of foreign exchange
Correct Incorrect Correct answer

supply of raw materials to industries
Correct Incorrect Correct answer

Correct

Incorrect
Question 46 of 48

46. Question

In animal production, newly-born rabbits are called

Bunnies
Correct Incorrect Correct answer

Kids
Correct Incorrect Correct answer

Poults
Correct Incorrect Correct answer

Lambs
Correct Incorrect Correct answer

Correct

Incorrect
Question 47 of 48

47. Question

The process of grafting in crop production involves

the fusion of gametes of two crops
Correct Incorrect Correct answer

indicating rooting from stems
Correct Incorrect Correct answer

the trandfer of a bud from one crop to another
Correct Incorrect Correct answer

the joining of two parts from related crops
Correct Incorrect Correct answer

Correct

Incorrect
Question 48 of 48

48. Question

Sexual maturity in farm animal is not influenced by their

Breed
Correct Incorrect Correct answer

Sex
Correct Incorrect Correct answer

Weaning age
Correct Incorrect Correct answer

Nutrition
Correct Incorrect Correct answer

Correct

Incorrect

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