PAPER 1

THEORY

PART A

Answer all the questions in this part. Write all the answers in the spaces provided. You are advised not to spend more than 30 minutes on this part.

1. a) the soil free living bacterium responsible for nitrogen fixation is

A. nitrobacter

B. azotobacter

C. rhizobium

D. nitrosomonas

b) Which of the following pests may cause the loss of plant sap?

A. weevils

B. bollworms

C. termites

D. aphids

c) The pitch of a mouldboard plough provides.

A. protection for the share

B. the cutting edge

C. for the penetration of the blade into the soil

D. stability for the plough

d) In production, the cost of feeds is

A. a variable cost

B. an opportunity cost

C. a fixed cost

D. a marginal cost

2. a) Of what importance is phosphorus in plant growth and development?

(i) .........................................................................................................

(ii) .........................................................................................................

(iii) .........................................................................................................

(iv) .........................................................................................................

(v) .........................................................................................................

b) Give three ways by which plant nutrients lost from the soil can be replaced

(i) ..........................................................................................................

(ii) ..........................................................................................................

(iii) ..........................................................................................................

3. a) Figure 1, below shows the female reproductive system of a farm animal. Name the parts labelled (i) - (iv) on the diagram.

IMAGE

b) Give the functions of parts labelled (i), (v) and (vi)

(i) .........................................................................................................

(ii) ..........................................................................................................

(iii) ..........................................................................................................

4. Give five reasons why private ownership of land is more beneficial to a farmer than communal land ownership.

(i) ...........................................................................................................

(ii) ...........................................................................................................

(iii) ...........................................................................................................

(iv) ...........................................................................................................

(v) ...........................................................................................................

5. Figure 2, below shows the cylinders in a four stroke diesel engine of a farm tractor with the firing order 1-3-4-2. Study the figure and answer the questions that follow.

IMAGE

a) In the spaces provided name the stroke occurring in each cylinder.

b) Indicate on the diagram the direction of movement of the piston in each cylinder.

c) Indicate the positions of the valves in each case.

PART B

Answer four questions, including at least one from each section. Write all your answers in the answer booklets provided.

SECTION I

MECHANISATION AND FARM MANAGEMENT

6. a) Outline the importance of keeping good farm records.

b) Using the information below, draw up a balance sheet for Mr. Mkulima's farm business as at 31st December, 1991.

Cash at hand shs12,000

Account payable 38,700

Debtors 31,000

Bank balance 38,000

Taxes 84,000

Livestock and crops 450,000

Land 2,500,000

Bank overdraft 65,000

Machinery 95,000

Loan 500,000

7. a) Name four components of the transmission system of a tractor and give one function of each one.

b) How would you care for a tractor battery to ensure that it lasts a long time?

8. a) What is the importance of fences in farm management?

b) Outline the steps followed in erecting a wire fence.

SECTION II

CROP PRODUCTION

9. a) Define crop rotation.

b) What factors are considered when planning a crop rotation programme?

c) Plan a rotation programme for the following crops: sorghum, cotton, cowpeas, cassava and millet.

10. a)What is soil pH?

b) Describe a simple experiment you would perform to determine the pH of a given soil sample.(use of pH meter not expected)

c) How can favourable pH for crop growth be maintained?

11. a) Outline the qualities of a good pasture.

b) Explain how you would establish and maintain a good pasture stand.

SECTION III

ANIMAL PRODUCTION

12. a) Outline the symptoms of east coast fever and new castle diseases.

b) How could disease outbreak on a farm be prevented?

13. a) Describe the care you would take of an in-calf cow up to the time of delivery.

b) Why must colostrums be fed to the new born calf?

14. a) How does a pig digest its food?

b) Why does a pig need other feedstuffs apart from grass only?

PAPER 2

PRACTICAL

1. a) (i) Identify specimen Q provided.

(ii) State the use of the specimen.

(iii) Describe how the specimen is operated.

(iv) Give two advantages of using the specimen.

b) (i) Identify specimen R.

(ii) What is the use of the specimen?

(iii) Name two other items that are normally used in association with the specimen.

2. a) Identify specimen X and Y.

X ...................................................................................................................

Y ...................................................................................................................

b) (i) State where each specimen is used in a machine.

X ...................................................................................................................

Y ...................................................................................................................

(ii) What characteristics make X and Y suitable for use in the machine parts identified in (b) (i) above?

(c) Give two functions common to both X and Y in a machine.

(d) Give three other functions performed by X.

3. Specimen S, T and U are common fertilizers used in crop growing.

a) (i) Identify them.

S ......................................................................................................................

T ....................................................................................................................

U ....................................................................................................................

(ii) Give one method of application of each of these fertilizers.

S .....................................................................................................................

T .....................................................................................................................

U ....................................................................................................................

b) (i) What major plant nutrients do these fertilizers supply?

S .....................................................................................................................

T .....................................................................................................................

U ....................................................................................................................

(ii) At what stage of growth of maize crop are these fertilizers applied?

S .....................................................................................................................

T .....................................................................................................................

U ....................................................................................................................

4. a) Carefully observe specimen V and identify.

Identity .................................................................................................................

(b) Make a labelled drawing of the head portion of the specimen.

c) State the reasons for economic importance of specimen V.

d) State the reasons for the economic importance of specimen V.

5. Observe specimens I, J, K, L, M and N and fill in the table below.

Specimen Identity Use of the specimen on the farm
I
J
K
L
M
N

6. You are provided with a Petri dish containing some germinated bean seeds.

a) Count the number of seeds which have germinated and those which have not germinated.

Number of seeds germinated ...........................................................................

Number of seeds that have not germinated .....................................................

b) Calculate the percentage of the total number of the seeds that have germinated.

c) Using your answers in (a) and (b) above, comment on the suitability of the seeds provided for planting.