Farm Power and Machinery

Daffodil International University Department of Agricultural Science Faculty of Agriculture Sciences Midterm Examination-Fall 2026 Course Code: 0851-1103 Course Title: Farm Power and Machinery Level and Term: L1, T2 Section: A, B, C, D Course Teacher Initials: DWA-KI Time: 1 hour 30 Mins Total Marks: 25 Splitting any answer is strictly prohibited | Marks 1 | List the major farm machinery and implements used at each stage of rice production, along with the major challenges of farm mechanization in Bangladesh and their potential solutions. | CLO1, PLO1 C1 | 5 2 | Describe the importance of a flywheel. Illustrate the working principle of a tractor engine. | CLO2, PLO2 C2 | 5 3 | A double-cylinder, four-stroke engine operates a combine harvester for rice harvesting. The cylinder bore is 16 cm, the stroke-to-bore ratio is 1.1:1, the crankshaft speed is 1,000 rpm, and the clearance volume is 220 cc. Calculate the engine displacement volume, piston speed, compression ratio, and firing interval. Does this engine have a spark plug? If yes or no, why? | CLO2, PLO2 C3 | 5 4 | Apply appropriate troubleshooting and maintenance procedures to address the tractor engine's overheating, excessive fuel consumption, black smoke emission, and starting difficulties. | CLO2, PLO2 C3 | 5 5 | Analyze why multicylinder engines require a smaller flywheel. Differentiate between petrol and diesel engines. | CLO2, PLO2 C4 | 5