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Agte 321:Farm Power And Machinery Question Paper

Agte 321:Farm Power And Machinery

Course:Agriculture

Institution: Kenya Methodist University question papers

Exam Year:2012

KENYA METHODIST UNIVERSITY

END OF 2''ND ''TRIMESTER 2012 (DAY) EXAMINATIONS
FACULTY : SCIENCE AND TECHONOLY
DEPARTMENT : AGRICULTURE
UNIT CODE : AGTE 321
UNIT TITLE : FARM POWER AND MACHINERY
TIME : 2 HOURS

Instruction:

This paper has two sections. Section I and section II. Answer all the questions in section I and only two questions in section II.

SECTION I

Question One
Discuss briefly five factors influencing the selection of a source of farm power. (10mks)

Question Two
Describe a case where the same farm implement can be used for the application of fertilizers, pesticides, and herbicides then mention some precautionary measures to be taken for the implement to continue working correctly. (10mks)

Question Three
State and discuss briefly four advantages of mould board ploughs compared to disc ploughs. (10mks)

Question Four
A farmer wants to cultivate 10 hectares of land using a mould board plough of rated width 75cm mounted on a tractor whose speed of work is 5km per hour. Find the expected field capacity and the total time required for the work if the expected field efficiency is 65%. (10mks)

SECTION II

Question Five
State and discuss briefly five advantages and five disadvantages of using draught animals instead of human labour as the main source of farm power. (15mks)

Question Six
Discuss three challenges associated with the use of the implement used for pesticide application and explain how those challenges can be minimized. (15mks)

Question Seven

Assume you work for a company dealing with farm machinery for hire and a farmer asks you to estimate for him the cost of tilling his 20 hectare field. Using the following information.

The implement to be used is a mould board plough of rated width 120cm mounted on a wheel type tractor working at an average speed of 5km/h with an effective field efficiency of about 70%. The new cost of the mouldboard was Ksh, 18,000 and it is expected to stay in use for 15 years. It is used for about 150 hours in a year. Its cost of repair and maintenance per hour is estimated at 0.08% of the new cost. The new cost of the tractor was Ksh. 1,500,000 and it is expected to stay in use for 10 years. On average, it is used for about 500 hours in year. Its cost of repair and maintenance per hour is estimated at 0.01% of the new cost. The tractor uses an average of 5 litres of diesel per hour costing Ksh. 90 per litre and its driver is paid sh. 200 per hour. The interest rate charged by local banks is 20% p.a. The company has a policy of charging a 10% profit for each hire operation. Estimate;

The time required for the tilling operation to nearest ½ hour.

The cost of the operation.

(15mks)

Agte 321:Farm Power And Machinery Question Paper

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