GATE Agricultural - GATE 2017-2018 Questions and Answers

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A tractor operated single acting trailing type disc harrow has 8 discs on each gang. The gang angle of both the gangs is maintained at 35⁰. The horizontal component of resultant soil reaction force on each disc is 600 N and it makes an angle of 30⁰ with the gang axis. If the speed of operation is 6 km h^-1, the required drawbar power in kW to operate the harrow will be _______________

12.3 to 12.5

14.4 to 14.6

24.4 to 24.6

14.2 to 14.4

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