GATE Farm Machinery: Farm Machinery – Previous Year Questions
28 GATE previous year questions on Farm Machinery (Farm Machinery, Agricultural Engineering) with answers and explanations, from every paper.
- GATE 2021 AG Q15 – During ploughing with a tractor-mounted mouldboard plough, the three-point-hitch mast should be .
- GATE 2021 AG Q25 – A self-propelled vertical-conveyor paddy reaper has 60 cm cutter width. Cutting power300 W, propelling power350 W, and crop-conveying power50% of…
- GATE 2021 AG Q27 – Useful soil-reaction forces on a tractor-drawn mouldboard plough are2.0,.9,.6 kN longitudinal, transverse, vertical. Soil–metal friction angle25°.…
- GATE 2021 AG Q40 – A fertilizer drill has row spacing40 cm and meters38 g per row per metering-wheel revolution. Ground wheel diameter 60 cm. For200 kg/ha and no skid,…
- GATE 2021 AG Q53 – Tractor total hourly cost is Rs.540 at 800 h/year and Rs.510 at 1000 h/year. Annual fixed cost and hourly variable cost stay unchanged. Find variable…
- GATE 2022 AG Q16 – A combine has annual fixed cost Rs. 300000 and operating cost Rs. 6000/ha. Which combination of annual use (ha) and custom rate (Rs./ha) gives…
- GATE 2022 AG Q38 – A 5×20 cm seed drill has ground-wheel diameter .5 m. Laboratory calibration gives 320 g in 20 revolutions. Actual sowing uses185 kg in 2 ha. Find the…
- GATE 2022 AG Q39 – A 3.6 m combine harvests a 20 m strip. Walker material8.5 kg contains 100 g free and 50 g unthreshed grain; shoe material5.5 kg contains 250 g free…
- GATE 2022 AG Q53 – A 12×60 cm tractor boom sprayer overlaps successive passes by 30 cm at 4.2 km/hour. Turning losses are7.5 min/ha. Assume no overlap between adjacent…
- GATE 2023 AG Q15 – Rotary-tiller total tillage energy decreases when
- GATE 2023 AG Q17 – Thresher cylinder separation efficiency can be improved by increasing
- GATE 2023 AG Q29 – Which are dimensionless parameters?
- GATE 2023 AG Q38 – A vertical five-disc plough works.15 m deep. Disc angle40°,diameter .6 m, and overlap between successive discs at working depth .12 m. Find total cut…
- GATE 2023 AG Q39 – A 9-row seed drill with 20 cm row spacing delivers4.25 g per roller per shaft revolution. The shaft turns once per two ground-wheel turns.…
- GATE 2023 AG Q40 – A boom sprayer has 12 nozzles at .5 m spacing and 75° spray angle. Lowering height from .75 to .60 m changes the swath width by how many metres?
- GATE 2023 AG Q51 – A chaff cutter has mean cutting radius.25 m, two knives,300 rpm, and feeds30 maize stalks of 12 mm diameter at a time. Dynamic shear strength.05…
- GATE 2024 AG Q29 – A rotavator has rotor radius300 mm, six flanges and three blades per flange acting in one plane. Initially rotor speed 180 rpm and forward speed 3…
- GATE 2024 AG Q38 – A power chaff cutter has effective throat width450 mm, clearance150 mm, four knives, cutter speed 540 rpm and theoretical cut length10 mm. Straw at…
- GATE 2024 AG Q39 – A 4.2 m combine travels3.5 km/hour at 75% field efficiency and harvests300 ha/year. Variable cost scales linearly with actual operating hours. What…
- GATE 2024 AG Q49 – A single-acting disc harrow has five discs per gang and gang angle20°. At3 km/hour and 10 cm depth, the horizontal soil reaction parallel to each disc…
- GATE 2024 AG Q50 – A rotary mower has 1.2 m swath at 5 km/hour. Friction losses are1.5 kW per metre swath and cutting energy2 kJ/m². Tractor plus mower weighs25 kN and…
- GATE 2024 AG Q54 – A boom sprayer has 12 nozzles at 50 cm spacing, speed 3.5 km/hour, initial nozzle pressure250 kPa and application rate 1.5 m³/ha. Pump flow…
- GATE 2025 AG Q20 – A four-row fluted-roller seed drill has row spacing 25 cm, speed 2.5 km/h and desired mustard seed rate 5.0 kg/ha. Seed bulk density is 800\,kg/m3.…
- GATE 2025 AG Q58 – A mouldboard plough is operated with 6.0 kN pull. Lateral/longitudinal and vertical/longitudinal soil-force ratios are .30 and .50. Driving-wheel…
- GATE 2025 AG Q59 – For a right-hand offset disc harrow, the front and rear gang centers are 2.5 and 4.5 m longitudinally from the hitch. Their longitudinal soil forces…
- GATE 2026 AG Q16 – Which plough attachment is a miniature plough bottom that cuts a narrow shallow furrow ahead of the shin and moves trash and roots into the main…
- GATE 2026 AG Q53 – A tractor boom sprayer has 12 flat-fan nozzles of angle 110°. Adjacent footprints must overlap by 30% of a single footprint. Boom height is .60 m,…
- GATE 2026 AG Q55 – An 8×20 cm seed drill has a .60 m diameter ground wheel. A hard-surface calibration delivers 814 g of seed in 30 wheel revolutions. In soft soil,…