WAEC - Agricultural Science (1993)

  • 1
    Land tenure system is a process of
    پاسخ دهید
    (C)
    acquiring land for agricultural purposes
  • 2
    The disadvantages of land fragmentation include the following except
    پاسخ دهید
    (C)
    facilitating the use of simple and cheap tools
  • 3
    Which of the following is not component of soil?
    پاسخ دهید
    (E)
    texture
  • 4
    The soil nutrient which is important as a constituent of plant proteins and hormones is
    پاسخ دهید
    (E)
    sulphur
  • 5
    Which of the following statement about crop rotation is not correct?
    پاسخ دهید
    (C)
    it encourages the build up of pests and diseases of crop
  • 6
    Which of the following is the best way to reduce surface run-off on farmlands?
    پاسخ دهید
    (B)
    providing adequate plant cover
  • 7
    In the process of recycling carbon in nature, carbondioxide is used by crops during
    پاسخ دهید
    (E)
    photosynthesis
  • 8
    Which of the following is a day-neutral crop?
    پاسخ دهید
    (B)
    maize
  • 9
    During the processes of soil formation, the cracks or crevices that are first noticed on the rocks are normally caused by
    پاسخ دهید
    (D)
    temperature
  • 10
    The major climatic factors influencing agricultural activities in the tropics include the following except
    پاسخ دهید
    (C)
    sunlight
  • 11
    Which of the following is not a way of maintaining soil fertility?
    پاسخ دهید
    (E)
    monocropping
  • 12
    A soil with the PH range of 6.1 to 6.9 can be described as
    پاسخ دهید
    (D)
    slightly acidic
  • 13
    Which of the following statement is not correct about micronutrients? They
    پاسخ دهید
    (D)
    are the most abundat elements in plant leaves
  • 14
    A soil which consists of a mixture of and, silt and clay in equal quantities is described as
    پاسخ دهید
    (D)
    loam
  • 15
    Which of the following processes will not lead to the loss of nutrients from the soil?
    پاسخ دهید
    (B)
    mulching
  • 16
    The physical properties of soil include the following except
    پاسخ دهید
    (E)
    PH
  • 17
    Which of the following problems will not be considered before installing irrigation equipment in a farm?
    پاسخ دهید
    (E)
    build-up of pest and diseases
  • 18
    Which of the following is the source of energy used by green plants for photosynthesis?
    پاسخ دهید
    (D)
    sun
  • 19
    One of the limitation of machanization of farms is
    پاسخ دهید
    (D)
    reduction of farm labour
  • 20
    Which of the following farm operations cannot be mechanized?
    پاسخ دهید
    (D)
    seed-germination
  • 21
    Which of the following is not a disadvantages of wind power?
    پاسخ دهید
    (B)
    its source is the wind
  • 22
    Which of the following is not an effect of badly arranged farm?
    پاسخ دهید
    (A)
    efficient management
  • 23
    Which of the following should be checked daily before using a tractor?
    پاسخ دهید
    (A)
    engine oil
  • 24
    The botanical name of giant star grass is
    پاسخ دهید
    (D)
    cynodon plectostachyum
  • 25
    Cassava mosaic virus can be controlled by
    پاسخ دهید
    (E)
    growing resistant varieties
  • 26
    Which of the following crops does not require nursery preparation?
    پاسخ دهید
    (D)
    okra
  • 27
    To which of the following crops does the term ginning apply?
    پاسخ دهید
    (D)
    cotton
  • 28
    The symptoms of coffee leaf rust are
    پاسخ دهید
    (A)
    leaf spots, loss of vigour and death of the leaves
  • 29
    Breeding in self-pollination crops can be regarded as
    پاسخ دهید
    (C)
    inbreeding
  • 30
    An effective control method of the citrus moth is
    پاسخ دهید
    (E)
    timely harvesting of ripe fruits
  • 31
    Cassava and sugarcane are mainly propagated by
    پاسخ دهید
    (D)
    cutting
  • 32
    Control of weeds of forage crops can be carried out by the following methods except
    پاسخ دهید
    (A)
    cutting
  • 33
    The aim of a plant breeder in producing a crop variety which is tolerated to extreme of cold, drought, wind and heat is based on the
    پاسخ دهید
    (A)
    adaptation of the variety to climate conditions
  • 34
    The crop which can be processed into powered form for effective preservation include the following except
    پاسخ دهید
    (E)
    kolanut
  • 35
    The popular pasture crops in Nigeria include the following except
    پاسخ دهید
    (E)
    carpet grass
  • 36
    parboiling is carried out in the processing of rice in order to
    پاسخ دهید
    (D)
    reduce percentages of breakage
  • 37
    Which of the following is not a leafy vegetable?
    پاسخ دهید
    (A)
    lycopersicon esculentum
  • 38
    Which of the following is not a control measure of cowpea weevil?
    پاسخ دهید
    (E)
    innoculation of seeds
  • 39
    A pasture legume mixture cut and preserved but not dried for dry season feeding of livestock is referred to as
    پاسخ دهید
    (D)
    silage
  • 40
    The sites of microbial activities along the gastro-instentinal tract of ruminants include the following except
    پاسخ دهید
    (A)
    rumen
  • 41
    The gestation period of a cow is approximately
    پاسخ دهید
    (D)
    283 days
  • 42
    The following are important management practices in the husbandry of piglets except
    پاسخ دهید
    (C)
    provision of grass beddings for piglets
  • 43
    Liming of fish pond is carried out in order to
    پاسخ دهید
    (E)
    maintain the water level of the pond
  • 44
    The general symptoms of malnutrition in animals include the following except
    پاسخ دهید
    (E)
    increase in body size
  • 45
    The nymphs of lice reach maturity in about
    پاسخ دهید
    (C)
    three weeks
  • 46
    The interval from the beginning of one heat period to the another is known as
    پاسخ دهید
    (E)
    oestrus cycle
  • 47
    Which of the following pond maintenance operation will ensure adequate supply of oxygen and hygienic condition for fish in a pond?
    پاسخ دهید
    (A)
    deweeding
  • 48
    The part of the egg that prevents the yolk from being damaged by keeping the yolk at the centre of the egg is the
    پاسخ دهید
    (D)
    chalaza
  • 49
    the aims of breeding in farm animals include the following except
    پاسخ دهید
    (D)
    evolving new breeds of animals suitable for all purposes
  • 50
    Which of the following statements about ticks is not correct?
    پاسخ دهید
    (B)
    it has six pairs of legs
  • 51
    cracking of egg laid by a flock of layers in a farm can be corrected by
    پاسخ دهید
    (D)
    increasing the amount of calcim, phosphorus and vitamin D in their feed
  • 52
    bull calves intended for breeding are sometimes nose-ringed in order to
    پاسخ دهید
    (E)
    facilitate easy handling of the bull
  • 53
    The hormone that prevents abortion or expulsion of the foetus during pregnancy is
    پاسخ دهید
    (B)
    progesterone
  • 54
    Which of the following ingredients is required for the formation of egg-shell in poultry?
    پاسخ دهید
    (A)
    bone meal
  • 55
    One of the sexually-transmitted diseases in livestock is
    پاسخ دهید
    (A)
    brucellosis