uganda national examination board past papers for agriculture 2001

PAPER 1
THEORY
PART A
Answer all the questions in this part. For question 1 write the letter corresponding to the best answer. For questions 2 to 5 write all answers in the provided space.
1. a) In which one of the following parts of the digestive system of a non - ruminant animal does the digestion of proteins begin?
A. Stomach
B. Duodenum
C. Mouth
D. Ileum
b) Which one of the following refers to a loan a farmer would use to finance the production of perennial crops?
A. Intermediate term loan
B. Short - term loan
C. Long - term loan
D. Soft loan
c)Which one of the following influences the effectiveness of a non - selective contact herbicide?
A. Degree of wetting of leaves.
B. Type of weed being controlled.
C. Stage of growth of weeds
D. Time of application.
a) Which one of the following sets of tools is used for the same purpose?
A. Hot iron, caustic stick, wire saw.
B. Hot iron, caustic stick, pincers.
C. Hot iron, wire saw, pincers.
D. Caustic stick, wire saw, pincers.
2. a) State two qualities of a good fertilizer.
i) .............................................................................................
ii) ................................................................................................
b) Name two methods of fertilizer application.
i. ...........................................................................................
ii. ............................................................................................
a) State two problems associated with the use of fertilizers.
i) ............................................................................................
ii) ............................................................................................
3. a) What is meant by uncertainty in a farm business?
b) Give four examples of uncertainty in a farm business.
i) ....................................................................................................
ii) .....................................................................................................
iii) .....................................................................................................
iv) ......................................................................................................
4. a) State four conditions that are necessary for proper incubation of eggs.
i) ......................................................................................................
ii) ......................................................................................................
iii) .........................................................................................................
iv) ......................................................................................................
b) Give two reasons for hanging green plants in a house of laying birds.
i) ......................................................................................................
ii) ......................................................................................................
5. State four advantages of using a spray race in tick control.
i) ......................................................................................................
ii) .......................................................................................................
iii) .........................................................................................................
iv) .........................................................................................................

PART B
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
6. a) With the aid of a well - labelled diagram, describe how the cooling system of a tractor engine works.
b) What routine maintenance practices should be carried out on the cooling system described in (a) above?
7. a) How do farmers benefit from forming farming organizations?
b) What problems have farming organizations faced in Uganda?
8. a) What are the advantages of agricultural mechanization?
b) Outline the factors limiting the mechanization of agriculture in Uganda.

SECTION II
CROP PRODUCTION
9. a) What factors are considered in planning a good crop rotation?
b) What are the advantages of crop rotation?
10. a) Describe how you would prepare good quality compost manure using the pit method.
b) What are the advantages of using compost manure?
11. a) Describe the cultural methods used in weed control.
b) What are the disadvantages of using chemicals to control weeds?

SECTION III
ANIMAL PRODUCTIO1inN
12. a) Explain the reason for making silage.
b) Describe the procedure of making silage.
c) What problems are encountered in silage making and use?
13. a) Describe the qualities of good litter for a poultry house.
b) Explain the possible causes of wetness of litter in poultry houses.
14. a) Explain why it is important to make permanent marks on farm animals.
b) Describe the various methods of making permanent marks on farm animals.


PAPER 2
PRACTICAL
Each candidate should be provided with the following:
Brown ear tick labelled A
Sweet potato tuber attacked by the potato weevil labelled C
Re - enforcement bar (^1/₂m long) labelled D₁
Unburnt brick labelled D₂
U - Nail labelled D₃
Cheap timber (12in *1in, ^1/₂m long) labelled D₄
Fine wire mesh 15cm * 15cm labelled D₅
Engine oil labelled F
Grease labelled G
Bidens Pelosi (black jack), labelled K₁
Digitaria scalarum (couch grass), labelled K₂
Oxalislatifolia (oxalis), labelled K₂
K₁, K ₂ and K₃ must be whole and mature plants. K₁ must bear fruits . Hand lens.
1. Your are provided with specimen A
a) Using a hand lens, observe and identify the specimen.
b) Draw and label the dorsal view of the specimen in the space below.
c) State three observable adaptations of the specimen that enable it live successfully.
i) .........................................................................................................................
ii) .........................................................................................................................
iii) ........................................................................................................................
d) Name three effects of specimen A on its host.
i) .............................................................................................................................
ii) ..............................................................................................................................
e) Give three ways of controlling specimen A.
i) .................................................................................................................................
ii) .................................................................................................................................
iii) ................................................................................................................................
2. You are provided with specimen D₁, D₂, D₃, D₄ and D₅ which are used for making farm structures.
a) Identify each specimen
D₁ .................................................................................................................................
D₂.....................................................................................................................
D₃...................................................................................................................................
D₄..................................................................................................................................
D₅....................................................................................................................................
b) State one farm structure where each specimen may be used.
D₁..................................................................................................................................
D₂..................................................................................................................................
D₃..................................................................................................................................
D₄....................................................................................................................................
D₅....................................................................................................................................
c) How is each specimen used in the contribution of the farm structure identified in (b) above?
D₁....................................................................................................................................
D₂.................................................................................................................................
D_3.......................................................................................................................................
D₄..........................................................................................................................................
D₅...................................................................................................................................
d) What can be done to each of specimen D₂ and D₄ to make them last longer.
D_2........................................................................................................................................
D₄......................................................................................................................................
3. You are provided with specimen C which has been damaged by a pest.
a) Cut the specimen to expose the damage and describe what you observe.
b) Suggest the pest responsible for the damage you have described in (a) above.
c) Give four control measures for the pest.
i) .........................................................................................................................
ii) ...........................................................................................................................
iii) .........................................................................................................................
iv) ........................................................................................................................
4. You are provided with specimens F and G which are used in farm machinery.
a) Identify each specimen.
F ..................................................................................................................................
G .................................................................................................................................
b) Give four functions common to both specimens.
i) .......................................................................................................................
ii) ........................................................................................................................
iii) ..........................................................................................................................
iv) .........................................................................................................................
c) State two parts of a farm machine where each specimen can be use
F .................................................................................................................................
G................................................................................................................................
d) Give two properties that make F suitable for use in the parts stated in (c) above.
i) ....................................................................................................................
ii) ....................................................................................................................
e) State four contaminants of specimen F.
i) ...................................................................................................................
ii) ...................................................................................................................
iii) ....................................................................................................................
iv) .....................................................................................................................
5. You are provided with specimens K₁, K₂ and K₃.
a) Give four ways in which the specimens affect crop production.
i) .......................................................................................................................
ii) ........................................................................................................................
iii) .........................................................................................................................
iv) .........................................................................................................................
b) Using observable features explain how each specimen is adapted to its way of life.
K₁..........................................................................................................................................
K₂..........................................................................................................................................
K₃........................................................................................................................................
c) Describe the mechanical method of controlling K₂.