Agricultural Science JAMB, WAEC, NECO AND NABTEB Official Past Questions

22

Which of the following statements is not a reason for feeding farm animals?

  • A. production of energy for work
  • B. building up of body tissue
  • C. production of inorganic manure
  • D. protection of animals from diseases
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23

In a brooder house, which of the following factors is monitored with the use of wet and dry hygrometer?

  • A. rainfall
  • B. temperature
  • C. relative humidity
  • D. atmosphere pressure
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24

If 30 eggs make up a crate of eggs, how many eggs are in 2 packs assuming a pack contains 10 crates of eggs?

  • A. 200 eggs
  • B. 300 eggs
  • C. 400 eggs
  • D. 600 eggs
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25

Digestion in ruminants is mainly?

  • A. enzymatic
  • B. microbial
  • C. mastication and enzymatic
  • D. microbial and enzymatic
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26

An important characteristic of pigs is that they are?

  • A. highly prolific
  • B. great milk producers
  • C. resistant to parasites
  • D. able to digest cellulose
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27

An agricultural system which combines crop production with forest establishment is known as?

  • A. plantation farming
  • B. taungya farming
  • C. arable farming
  • D. mixed farming
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28

A pest that attacks stored maize grain is?

  • A. mirid
  • B. rodent
  • C. grasshopper
  • D. aphid
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29

Which of the following tree species is suitable for making electric poles?

  • A. Indian almond
  • B. mango
  • C. silk cotton
  • D. teak
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30

Uncontrolled burning of forests encourages?

  • A. deforestation
  • B. afforestation
  • C. regeneration
  • D. exploitation
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31

When a gene is expressed in the phenotype in a homoxygous or heterogous form, that gene is said to be?

  • A. segregating
  • B. recessive
  • C. regeneration
  • D. exploitation
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32

The fencing and partitioning of a pastureland into paddocks is meant to?

  • A. suppress weeds that compete with pasture crops
  • B. control grazing and ensure regeneration of pasture
  • C. allow free movement of ruminants on the pasture
  • D. prevent lodging of the pasture plants
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33

The following crops are fiber crops except?

  • A. cotton
  • B. onion
  • C. jute
  • D. sisal
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34

The yield of cocoa trees is not influenced by?

  • A. pest infestation
  • B. fertiliser application
  • C. method of harvesting
  • D. method of soil tillage
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35

Which of the following diseases of tomato is caused by nematode?

  • A. fusarium wilt
  • B. root knot
  • C. leaf spot
  • D. leaf curl
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36

A crop that can be propagated by stem cutting is?

  • A. plaintain
  • B. pepper
  • C. cassava
  • D. carrot
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37

An important reason for staking yam is to?

  • A. expose the leaves to sunlight
  • B. prevent water logging on the farm
  • C. enhance the formation of leaves
  • D. expose the flowers to pollination
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38

Which of the following statements about threshing of rice are true?

I.Rice grains are separated from the panicle
II.Breakage of some grains could occur
III.The grains are polished

  • A. I and II Only
  • B. I and III Only
  • C. II and III Only
  • D. I, II and III
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39

If the yield of cowpea is 750kg per hectare, calculate the yield of cowpea from a 20 hectare farm.

  • A. 7,500kg
  • B. 15,000kg
  • C. 22,500kg
  • D. 37,500kg
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40

Crops which grow and mature within few weeks of their cultivation are called?

  • A. annual crops
  • B. ephemeral crops
  • C. perennial crops
  • D. biennial crops
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41

Which of the following crops is dicotyledonous?

  • A. Zea mays
  • B. Oryza sativa
  • C. Elaeis guineensis
  • D. vigna unguiculata
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42

Which of the following methods of irrigation is most efficient in terms of water conservation?

  • A. flood irrigation
  • B. furrow irrigation
  • C. border irrigation
  • D. drip irrigation
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