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Agricultural Engineering Gate 2024 Questions with Answer
Ques 27 GATE 2024
A tractor drawn rotary mower has a swath width 1.2 m when operated at a forward speed of 5 km.h⁻¹. The specific power loss due to air, stubble and gear train friction per m of swath width is 1.5 kW and the specific cutting energy is 2 kJ.m⁻². The total weight of tractor with mower is 25 kN and the resistance to propel the tractor with mower is 6% of its total weight. Assuming transmission efficiency between engine to drawbar as 75% and engine to PTO as 87%, the total engine power required to carry out mowing, in kW, is _______. (Rounded off to 2 decimal places)
Ques 28 GATE 2024
A farmer desires to run a diesel engine developing a brake power of 1.5 kW, continuously for 2 hours using biogas and diesel in a dual fuel mode. If gas requirement for running the engine in dual fuel mode is 0.67 m³.kW⁻¹.h⁻¹, the minimum size of KVIC model biogas plant with a gas holding capacity of 60% suitable for running this diesel engine, in m³, is _______. (Answer in integer)
Ques 29 GATE 2024
An accelerator mounted to the waist of a seated tractor operator records an RMS acceleration of 2.5 m.s⁻². By improving the seat design, the vibration acceleration level is decreased by 5 dB. After improvement, the RMS acceleration, in m.s⁻² is _______. (Rounded off to 3 decimal places)
Ques 30 GATE 2024
A two-wheel drive tractor having a total weight of 20 kN is pulling an implement at an actual speed of 3 km.h⁻¹. The ratio of axle power (kW) to dynamic weight (kN) on the rear axle is expressed as 1.79/V, where, V is the theoretical forward speed in km.h⁻¹. During pulling the implement, the weight distribution on the front and rear axles of the tractor is 40% and 60% of the total weight, respectively, with wheel slip 12% and coefficient of net traction 0.42. The tractive efficiency, in %, is _______. (Rounded off to 2 decimal places)
Ques 31 GATE 2024
A tractor drawn boom type sprayer fitted with 12 nozzles at a spacing of 50 cm is used to carryout spraying at a forward speed of 3.5 km.h⁻¹ and nozzle pressure of 250 kPa for an application rate of 1.5 m³.ha⁻¹. Out of the total discharge from the pump, 12% is bypassed to the liquid tank and the total pressure drop in all pipe lines from the pump is 10% of the pressure developed by the pump. Considering the pump efficiency as 60%, if the nozzle pressure is increased by 10%, the power required to operate the pump, in kW, is _______. (Rounded off to 3 decimal places)
Ques 32 GATE 2024
Critical thickness of insulation (rcr) for a pipe having thermal conductivity (k) and heat transfer coefficient at the outer surface of insulation (ho) is __________.
Ques 33 GATE 2024
Incorrect statement(s) with respect to hydrothermal treatment of paddy is/are
Ques 34 GATE 2024
Falling rate period of drying can be explained by one/more of the following:
Ques 35 GATE 2024
Freshly harvested shrimps of 100 kg having initial temperature of 25 °C are frozen to -18 °C. The specific heat (cp) of shrimp above and below freezing point (0 °C) are 3.64 kJ.kg⁻¹.°C⁻¹ and 2.01 kJ.kg⁻¹.°C⁻¹, respectively. Considering the latent heat of fusion as 240 kJ.kg⁻¹, the heat load removed during the process, in kJ, is _______. (Rounded off to 1 decimal place)
Ques 36 GATE 2024
An indented cylinder type rice grader has been fed with milled rice containing 18% brokens. After separation, head rice stream contains 3% brokens and the broken stream carried away 4% head rice. The effectiveness of the given rice grader on the basis of head rice separation, in fraction, is _______. (Rounded off to 3 decimal places)
Ques 37 GATE 2024
A single effect evaporator concentrates 9090 kg.h⁻¹ herbal extract of 12% solids entering at 300 K to a final solid concentration of 20%. Assuming negligible product loss through vapor, the amount of concentrated product, in kg, is _______. (Answer in integer)
Ques 38 GATE 2024
The decimal reduction time D121 and the z value of thermophilic spores in milk were found to be 60 seconds and 11 °C, respectively. Heating time required at 141 °C for a 10 log cycle reduction in population, in seconds, is _______. (Rounded off to 2 decimal places)
Ques 39 GATE 2024
Match the following in material types (Column I) with their rheological properties (Column II).
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