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THEORY QUESTIONS

WAEC SYLLABUS

1. To facilitate mechanical harvesting of cereals, It is better to

A. make all of them disease-resistant.

B. ensure that they are free from pest attack.

C. ensure that they all have uniform height.

D. make sure they are early maturing.

2. One of the problems facing Agricultural development in West Africa is

A. inadequate financing.

B. Providing hire purchase services.

C. low income of consumers.

D. inadequacy of industries.

3. What action of government may be considered as granting of subsidies to farmers?

A. Giving low interest loan to farmers.

B. Providing hire purchase services.

C. Supplying agrochemicals at reduced cost.

D. Providing free non-formal education to farmers.

4. Which of the following are advantages of the communal land ownership system? I. Every member of the community has a piece for land on which to farm. II. Co-operative farming is possible under this system. III. Large scale farming is encouraged. IV. Land can be used as security for loans.

A. I and II only.

B. II and III only.

C. I and III only.

D. III and IV only.

5. A socio-economic factor which affects the ability of land for Agricultural use in West Africa is

A. soil type.

B. population growth.

C. rainfall distribution.

D. working capital

ANSWERS

6. Which of the following crop systems would lead to continuous sustenance of soil fertility? I. Crop rotation .II. Land rotation. III. Monoculture. IV. Monocropping.
A. I and II only.
B. I and III only.
C. II and III only.
D. I, II, III and IV only.

7. Which of the following factors affect the onset of flowering in crops?
A. Atmospheric pressure.
B. Wind.
C. Day length.
D. Rainfall.

8. Marble is a metamorphic rock formed from
A. limestone.
B. quartzite.
C. shale.
D. schist.

9. Which of the following statements best describes sedimentary rocks?
A. Pre-existing rocks in which the original mineral has undergone change.
B. Weathered rocks transported by wind to other places.
C. Molten magma which has cooled down and solidified.
D. rocks formed from breaking, deposition, and re-cementation of pre-existing rocks.

10. The rock weathering process involving the equation CaCo3+H2CO3 --= CA(HCO3)2 is called
A. Carbonation.
B. Hydration.
C. Hydrolysis.
D. Oxidation.

ANSWERS

11. When compost is added to sandy soil, it

A. reduces the activities of living organisms.

B. increases the porosity of the soil.

C. increases water holding capacity of the soil.

D. decreases the soil acidity.

12. Soils can become acidic as a result of the continuous application of

A. single superphosphate.

B. sulphate of ammonia.

C. muriate of potash.

D. NPK 15:15:15.

13. Which of the following species of bacteria lives symbiotically in root nodules of legumes?

A. Azotobacter.

B. Clostridium.

C. Nitrobacter.

D. Rhizobium.

14. Plant nutrients are restored during the fallow period through

A. reduced soil erosion.

B. accumulation of soil organic matter.

C. reduced evaporation from the soil.

D. accumulation of farmyard manure.

15. The processes by which animals release carbon dioxide into the air are

A. respiration and decay.

B. respiration and ammonification.

C. nitrification and decay.

D. denitrification and ammonification.

ANSWERS

16. Which of the following practices leads to land degradation in the savannah parts of West Africa? I. Constant annual bush fires. II. Overgrazing of farmland. III. Application of cattle manure. IV. Cutting of woody pieces for fuel wood.

A. I, II and III only.

B. I, II and IV only.

C. II, III and IV only.

D. I, II, III and IV only.

17. A 100kg NPK 15:15:15 compound fertilizer has filler make –up weight of

A. 30kg.

B. 40kg

C. 45kg.

D. 55kg.

18. One of the main disadvantages of mechanical tillage is the

A. low initial cost of equipment.

B. need for special training before machines can be used.

C. use of heavy equipment leading to soil compaction.

D. use of foreign exchange to purchase machine parts.

19. Which of the following factors affect the work rate of draught animals? I. Feed intake. II. Breed of animal. III. Harness for hitching. IV. Height of animal.

A. I, II, and III only.

B. I,II and IV only.

C. II, III and IV only.

D. I, II, III and IV.

20. Which of the following features could lead to wrong reading on a prismatic compass?

A. A big tree.

B. Wind direction.

C. A pond.

D. Magnetic attraction.

ANSWERS

21. Which of the following steps gives a correct sequence for surveying a farmstead?

A. Reconnaissance preliminary survey mapping

B. Mapping reconnaissance preliminary survey.

C. Preliminary survey reconnaissance mapping.

D. Preliminary survey mapping reconnaissance.

22. The characteristic of draught animals which does not influence traction effort is

A. age.

B. sex.

C. breed of animal.

D. meat quality.

23. The branch of horticulture that deals with the production of vegetables is called

A. pathology.

B. olericulture.

C. floriculture.

D. pomology.

24. Pruning is carried out to I. control the size of the plants. II. Obtain clean and attractive fruits. III. Ensure correct spacing of trees.

A. I and II only.

B. I and III only.

C. II and III only.

D. I, II and III.

25. Which of the following characteristic is not true of tree species used in alley cropping?

A. Shallow rooting system.

B. Regenerate rapidly after pruning.

C. Excellent canopy formation.

D. Capable of fixing atmospheric nitrogen.

ANSWERS

26. Insect damage to crops takes the form of

A. chewing, grinding and sucking.

B. grinding, piercing and chewing.

C. piercing, sucking and grinding.

D. chewing, sucking and piercing.

27. One disadvantage of vegetative propagation is that

A. fruits are small in size.

B. viral diseases are transferred to offspring.

C. plants are true to true.

D. plants take a long time to mature.

28. Which of the following factors should be considered when sowing seeds in the field? I. Time of sowing. II. Plant density. III. Depth of sowing. IV. Method of sowing.

A. I and II only.

B. I, II and III only.

C. III and IV only.

D. I, II, III and IV.

29. Which of the following groups of crops require winnowing during processing?

A. Fruits.

B. Cereals.

C. Tubers.

D. Vegetables.

30. A farmer who plants African Marigold between his crops has the intention of controlling

A. bacteria.

B. viruses.

C. fungi.

D. nematodes.

ANSWERS

31. If the spacing of a crop is 3.6m ×4.5m, determine the crop population per hectare.

A. 769.

B. 617.

C. 494.

D. 408.

32. An example of piercing and sucking insect pest of crops is a

A. mealy bug.

B. grasshopper.

C. weevil.

D. termite.

33. If rows are spaced 1.0m apart with one plant per stand, determine the spacing between stands in order to obtain a plant population of 40,000/ha.

A. 0.25m

B. 0.40m.

C. 0.50m.

D 1.00m.

34. Calculate the number of yam setts planted at a spacing of 1.0m by 1.0m on a hectare of land.

A. 1,000 setts.

B. 2,500 Setts.

C. 5,000 setts

D. 10,000 setts.

35. Some plants are suitable for decorating living rooms because of their

A. ability to endure low light intensity

B. low respiration rate.

C. ability to retain water.

D. low resistance to diseases.

ANSWERS

36. Capping and staking are important cultural practices in the cultivation of

A. sweet potatoes.

B. tomatoes.

C. yams

D. groundnuts.

37. An important application of mulching is that it

A. increases soil temperature.

B. provides soil with nutrients

C. conserves moisture in the soil

D. increases rate of evaporation.

38. The removal of shealth on maize cob is known as

A. winnowing

B. shelling

C. dehusking.

D. milling.

39. Which of the following sequences describes the steps in making hay?

A. Cut, dry and bale.

B. Dry, ferment and bale.

C. Cut, wilt and bale.

D. Bale, dry and cut.

40. One disadvantage of using bamboo troughs as waterers for poultry is that they

A. can be chewed up by the birds.

B. is susceptible to alga growth.

C. breaks easily when they fall.

D. contaminates the water put in them.

ANSWERS

41. The characteristic odour in billy goats can be removed through

A. docking

B. castrating

C. drernching

D. dipping.

42. A cattle breed in West Africa tolerant to trypanosomiasis is

A. White Fulani

B. Sokoto Gudali

C. N’dama.

D. Friesan.

43. A consequence of pasture littered with polythene materials is that

A. animals could slip and fall frequently.

B. the alimentary canal of farm animals could be blocked.

C. the material could poison the animal.

D. it improves the quality of the pasture.

44. Which of the following statements about colostrum is false? It is

A. an evaporated milk.

B. the first milk produced after parturition.

C. high in antibodies.

D. rich in proteins and vitamins.

45. Meat from cattle of less than one year old is called

A. beef.

B. chevron.

C. veal.

D. pork.

ANSWERS

46. Which of the following characteristics is not important in beef cattle production? I. Increased butter fat percentage. II. High feed conversion efficiency. III. High yield of lean meat.

A. I only.

B. I and II only.

C. II and III only.

D I, II and III.

47. The following are systems of mating in farm animals : I. stud mating. II. Artificial insemination. III. Pen mating. IV. Herd mating.

A. I only.

B. I and II only.

C. I, II, III and IV.

D. I, II and II only.

48. A disease of rabbit caused by a protozoan is

A. infectious bronchitis.

B. coccidiosis.

C. anthrax.

D. milk fever.

49. The common name of Axonopus compressus is

A. carpet grass.

B. spear grass.

C. guinea grass.

D. bahama grass.

50. Which of the following groups of cattle are tropical breeds?

A. Friesan, Kuri and White Fulani.

B. N’dama, Sokoto Gudali And Muturu.

C. Kuri, Sokoto Gudali and Jersey.

D. Muturu, N’dama and Friesan.

ANSWERS

51. The following substances are excretory products in farm animals expect I. Blood II. Sweat III. Urine

A. I only.

B. II only.

C. III only.

D.II and III only.

52. The following are signs of ill-health in farm animals except

A. uncoordinated gift

B. dull eyes

C. high body temperature

D. increased appetite.

53. Which of the following factors should be considered when building a rabbit hutch? I. Safety and comfort of rabbits II. Ease of maintenance and cleaning. III. Day length.

A. I and III only.

B. I and III only.

C. II and III only.

D. I, II and III.

54. Heat in farm animals can be detected by the following signs except

A. redness of the vulva.

B. low body temperature.

C. loss of appetite.

D. frequent urination.

55. Which of the following organs forms a barrier between an animal and its external environment?

A. Urinary bladder.

B. Stomach.

C. Lung.

D. Skin.

ANSWERS

56. Demand is said to be price elastic, if the absolute value of price elasticity of demand is

A. greater than one.

B. less than one.

C. one.

D. zero.

57. Which of the activities are functions of agricultural marketing boards in West Africa? I. Price stabilization within the seasons. II. Harvesting of the farm produce. III. Grading and standardization of the produce. IV. Market research for the produce.

A. I and II only.

B. II and III only.

C. II, III, and IV only.

D. I, III and IV only.

The table below shows the supply schedule for soybean by three producers.