PART A
Answer all the questions in this part. For question 1, write the letter corresponding to the best answer in the provided. For questions 2 to 5, write all answer in the spaces provided.
1. a) Which one of the following hormones maintains pregnancy in a cow?
A. progesterone hormone
B. follicle stimulating hormone
C. luteinizing hormone
D. oxytocin hormone
b) The purple coloration of leaf margins in maize is a deficiency symptom of
A. magnesium
B. calcium
C. phosphorus
D. potassium
c) Which of the following features of a farm of a tractor enables the operator to turn the tractor in a narrow space during ploughing?
A. Small front wheels
B. The differential
C. Hydraulic power steering
D. Braking of rear wheels
d) Payment for casual labour on a farm is classified as
A. A fixed cost
B. An overhead cost
C. A variable cost
D. An implicit cost
2. Explain four precautions that should be taken storing grain.
3. Give four challenges of rearing exotic cattle
4. a) State a possible cause of each of the following faults in an engine faults in an engine.
(i) Engine stops suddenly
(ii) Engine does not start
(iii) Engine overheats
b) Suggest an action to be taken correct each of the following engine faults:
(i) Engine jerking
(ii) Engine producing black smoke
5. Give five criteria to use when identifying a good herdsman.
PART B
Answer four questions including at least one from each section. Write your answers in the answer booklets provided.
SECTION I
CROP PRODUCTION
6. Explain how each of the following practices soil erosion.
i) Contour ploughing
ii) Minimum tillage
iii) Deep ploughing
iv) Diversion channels
v) Mulching
7. a) (i) Explain why root crops are popularly grown in Uganda.
(ii) Outline the disadvantages of root crops.
b) Describe how a cassava crop is raised from land preparation to harvesting.
8. a) Outline the objectives of crop breeding.
Describe the different methods of vegetative propagation.
SECTION II
ANIMAL PRODUCTION
9.a) Explain how diseases are transmitted among animals.
b) Describe the effects of disease on animals.
What factors encourage the development of mastitis in milking cows?
10. Explain the factors to consider when establishing a beef herd.
11.a) Explain the differences between a good and a poor layer.
b) Outline the factors that affect egg production in a laying flock.
SECTION III
MECHANISATION AND FARM MANAGEMENT
12. a) Describe the functions of a cooperative society.
b) Give reasons for the collapse of cooperative societies in Uganda.
13. a) Outline the importance of farm structures in agricultural production.
b) Using examples, explain where you would locate different farm structures on a newly acquired farm.
14. a) Explain the functions of lubrications in an engine.
b) Name the different lubricants used in farm machines, citing where each is used, giving reasons.