Download PTU B.Sc Agriculture 2019 May 4th Semester 72760 FARM POWER and MACHINERY Question Paper

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B.Sc. Agriculture (2014 & Onwards) (Sem.-4)

FARM POWER & MACHINERY

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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1. Write short notes on :
   1. Belt Power
   2. Mechanical efficiency
   3. Timing gear
   4. Firing order
   5. Planter

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   6. Dibbling
   7. Differential
   8. Power tiller
   9. Centre of resistance
   10. Tilt angle

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SECTION-B

2. What are the scopes of farm mechanization in India?
3. With a neat diagram describe the fuel supply system of a diesel engine.

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4. What is seed drill? Describe the process of calibration of seed drill.
5. Why a tractor needs a clutch? What is the principle of clutch?
6. What are the different types of sprayers? Describe the working of knapsack type sprayer with the help of a neat sketch.

SECTION-C

7. Explain the working of two stroke cycle engine with neat sketches. Compare the advantages and disadvantages of four stroke cycle engine and two stroke engines.

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8. A four bottom 40 cm M.B. plough has a working depth of 15 cm and draft of 1500 kg. It is working at a speed of 5 km/hr. with the field efficiency of 75 %. Find :
   1. Unit draft
   2. Drawbar power
   3. Theoretical field capacity
   4. Actual field capacity

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9. Describe the working principle of a combine. Name the important parts of a combine. Give grain flow diagram of a combine.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.