uganda national examination board past papers for agriculture 2002

PAPER 1
THEORY
PART A
Answer all the questions in this part. For question 1, write the letter corresponding to the best answer in the corresponding box. For questions 2 to 5, write all answers in the spaces provided.
1. a) Which of the following is a notifiable disease?
A. Scours
B. Coccidiosis
C. Foot and mouth
D. East coast fever
b) Stocking rate refers to number of
A. Paddocks for grazing animals
B. Animals supported by a pasture
C. Breeding animals on a farm
D. Animals kept per unit area.
c) A trading account is a type of farm record which shows
A. All transactions carried out throughout the year
B. Daily entries of purchases and sales
C. Performance of each enterprise on the farm
D. Financial position of the farm on a particular date.
a) Which one of the following s the firing order in a four cylinder engine with the cylinders numbered in the order of 1, 2, 3 and 4?
A. 1, 4, 3, 2
B. 1, 3, 4, 2
C. 1, 2, 4, 3
D. 1, 4, 2, 3
2. a) State three advantages of raising a coffee crop from cuttings.
b) Give two reasons why a coffee crop should be pruned?
3. Explain four factors which influence the choice of the irrigation method to use I an area.
4. Give five functions of farmers' organizations.
5. State four functions of the electrical system of a tractor.

PART II
Answer four questions including at least one from each section. Write all your answers in the answer booklet provided.
SECTION I
MECHANISATION AND FARM MANAGEMENT
1. a) The table below shows changes in the price and the quantity of beans bought from a grocery between March and April 2001.

Price of beans (sh/kg)	Quantity of beans bought (kg)
600 550 500 450 400 350 300 250 200	100 150 200 250 300 350 400 450 500

(i) Using the information on the table, draw a graph to show the relationship between the price of beans and the quantity bought.
(ii) Describe how the quantity of beans bought varied with price. b) Explain the factors that affect the
i. Price of a commodity
ii. Demand for a commodity
2. a) What are the advantages of a 4 stroke engine?
b) Describe how a 4 stroke cycle petrol engine works.
3. a) What is agricultural credit?
b) What is the benefit of acquiring agricultural credit to farmers?
c) Give reasons why farmers sometimes fail to repay credits.

SECTION II
CROP PRODUCTION
4. Describe the field practices that lead to increased crop yields.
5. a) Describe the problems of weeds in crop production.
b) What characteristics have made weeds more successful?
6. a) Why is irrigation important in crop production?
b) Outline the advantages and disadvantages of overhead irrigation.

SECTION III
ANIMAL PRODUCTION
7. a) What factors must a farmer consider before establishing a beef herd?
b) Describe the factors that limit beef production in Uganda.
8. a) Outline the advantages of rearing pigs as compared to the rearing of other types of livestock.
b) What problems are associated with the rearing of pigs?
9. a) What is oestrus cycle?
b) Outline signs of heat in a goat.
c) Describe how to manage a goat during its pregnancy.

PAPER 2 PRACTICAL
1. You are provided with specimen A and B.
a) Get a small amount of specimen A and moisten it with a little water. Rub it between your index finger and thumb.
i) Describe the feel of the specimen.
ii) Repeat the same procedure with specimen B and describe the feel of the specimen.
iii) Suggest the type of soil each specimen is.
A...................................................................
B....................................................................
b) Measure 50cm³ of specimen A in a 100 cm³ measuring cylinder. Measure 50cm of water and add it to the sample in the cylinder. Stir the contents well with a glass rod and leave to settle.
i) Record the volume of the contents in the cylinder, in the table below. Repeat the procedure with specimen B.

Sample	Volume of contents after settling
A
B

ii) Explain your results. c) i) Which of the two specimens A and B is better for crop growth?
ii) Give a reason.
d) Suggest how you can change specimen A so that it resembles specimen B.
2. You are provided with specimens C, D, E and F.
a) Observe them and complete the following table.

Specimen	Identity	Economic importance
C
D
E
F

b) Giving a reason in each case, suggest how specimens E and F are dispersed
i) E................................................................................................ Reason
...................................................................................................
ii) F...............................................................................................
Reason
...................................................................................................
3. You are provided with specimens G, H, I and J which are parts of a farm animal.
a) Observe the specimens and describe the appearance of each of them.
G ..................................................................................................................
H ...................................................................................................................
I ......................................................................................................................
J .......................................................................................................................
b) Give the identity of each specimen.
G ..................................................................................................................
H ..................................................................................................................
I .....................................................................................................................
J .................................................................................................................
c) To which system of the farm animal do the specimens belong?
d) To which group of farm animals does the animal from which specimens G, H, I and J were taken, belong?
4. You are provided with specimens K, L, M, O and P.
a) Identify each specimen and give its function.

Specimen	Identity	Function
K
L
M
N
O
P

b) How would you ensure that each of the specimens work efficiently?
K ........................................................................................................................ L ........................................................................................................................
M .......................................................................................................................
N ........................................................................................................................
O ...........................................................................................................................
P ........................................................................................................................
5. You are provided with specimen T and W.
a) i) Identify the specimens
T ......................................................................................................................
W .....................................................................................................................
ii) State the crop which each specimen attacks.
T ........................................................................................................
W ......................................................................................................
b) Using a hand lens observe the mouth parts of the specimens and state the mode of feeding of each specimen.
T .............................................................................................................
W .............................................................................................................
c) State two types of damage caused by each specimen on the crop it attacks.
T ..............................................................................................................
W ................................................................................................................