JAMB Agricultural Science questions

306 questions with answers and explanations. Tap an option to check yourself.

1. Question 201· Irrigation and drainage· JAMB

   A dam in an irrigation scheme is used to

   • Adrain swamps
   • Bstore water
   • Cplough land
   • Dharvest crops

   Show answer

   Explanation and discussion

2. Question 202· Irrigation and drainage· JAMB

   Digging open ditches across a waterlogged field is a way of

   • Adraining the land
   • Birrigating the crop
   • Cfertilising the soil
   • Dcontrolling pests

   Show answer

   Explanation and discussion

3. Question 203· Irrigation and drainage· JAMB

   Furrow irrigation delivers water

   • Athrough drip pipes only
   • Bas fine spray from above
   • Calong channels between crop rows
   • Dby hand watering only

   Show answer

   Explanation and discussion

4. Question 204· Irrigation and drainage· JAMB

   Water lost from the soil surface and from plants together is

   • Ainfiltration
   • Bevapotranspiration
   • Cpercolation
   • Drunoff

   Show answer

   Explanation and discussion

5. Question 205· Irrigation and drainage· JAMB

   Which of these is a source of water for irrigation?

   • ASand dunes
   • BThe harmattan wind
   • CLaterite
   • DA dam

   Show answer

   Explanation and discussion

6. Question 206· Irrigation and drainage· JAMB

   Draining a waterlogged soil mainly improves

   • Asoil acidity
   • Bsoil aeration
   • Csoil salinity
   • Dsoil colour

   Show answer

   Explanation and discussion

7. Question 207· Irrigation and drainage· JAMB

   A danger of poorly managed irrigation in dry areas is

   • Amore rainfall
   • Bincreased soil fertility
   • Csalinisation of the soil
   • Dreduced evaporation

   Show answer

   Explanation and discussion

8. Question 208· Irrigation and drainage· JAMB

   Salinisation of irrigated land is caused by

   • Afertile soils
   • Btoo much rain
   • Caccumulation of salts from evaporating irrigation water
   • Dforest growth

   Show answer

   Explanation and discussion

9. Question 209· Livestock management· JAMB

   Rotational grazing helps to

   • Aburn pastures
   • Bincrease overgrazing
   • Cfeed animals less
   • Dallow pastures to recover and reduce parasites

   Show answer

   Explanation and discussion

10. Question 210· Livestock management· JAMB

    The system in which animals roam freely in search of their own food is the

    • Asemi-intensive system
    • Bintensive system
    • Cextensive system
    • Dbattery system

    Show answer

    Explanation and discussion

11. Question 211· Livestock management· JAMB

    Dipping cattle is done to control

    • Aviruses
    • Bworms
    • Cbacteria in the gut
    • Dticks and other ectoparasites

    Show answer

    Explanation and discussion

12. Question 212· Livestock management· JAMB

    Debeaking is carried out in poultry to prevent

    • Acannibalism and feather pecking
    • Begg laying
    • Cdiseases
    • Dbroodiness

    Show answer

    Explanation and discussion

13. Question 213· Livestock management· JAMB

    The battery cage system for layers

    • Auses deep litter
    • Blets birds roam freely
    • Ckeeps birds in individual cages
    • Dis for pigs

    Show answer

    Explanation and discussion

14. Question 214· Livestock management· JAMB

    The battery cage system is used mainly for

    • Agoats
    • Blaying hens
    • Ccattle
    • Dpigs

    Show answer

    Explanation and discussion

15. Question 215· Livestock management· JAMB

    Castration of male animals helps to

    • Agrow horns
    • Bincrease fertility
    • Cproduce more milk
    • Dmake them docile and improve meat quality

    Show answer

    Explanation and discussion

16. Question 216· Livestock management· JAMB

    Paddocking means

    • Awashing the animals
    • Bkeeping animals in cages
    • Cfeeding only hay
    • Ddividing pasture into sections grazed in turn

    Show answer

    Explanation and discussion

17. Question 217· Livestock management· JAMB

    Debeaking in poultry is done to

    • Aincrease egg size
    • Bprevent cannibalism and feather pecking
    • Cmake birds fly
    • Dimprove vision

    Show answer

    Explanation and discussion

18. Question 218· Livestock management· JAMB

    Dipping or spraying of cattle is done mainly to control

    • Ainternal worms
    • Bticks and other external parasites
    • Cviral diseases
    • Dbloat

    Show answer

    Explanation and discussion

19. Question 219· Livestock management· JAMB

    The removal of the testes of a male farm animal is called

    • Acastration
    • Bdehorning
    • Cdebeaking
    • Dculling

    Show answer

    Explanation and discussion

20. Question 220· Livestock management· JAMB

    Zero grazing means

    • Aanimals are kept in pens and fodder is cut and brought to them
    • Banimals graze freely
    • Cno feeding at all
    • Danimals graze at night only

    Show answer

    Explanation and discussion