If the inner and outer steering angle in a tractor are 9° and 9.8° respectively then for correct steering conditioning the value of the ratio of pivot axis spacing to track length is equal to ______

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If the inner and outer steering angles in a tractor are 9° and 9.8° respectively then for correct steering condition the value of the ratio of pivot axis spacing to travel length is equal to ____

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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While turning a 4-wheel tractor equipped with the Ackermann steering mechanism the axis of the inner front wheel makes an angle of 45°, whereas the angle made by the axis of the outer front wheel is 30° with horizontal line parallel to the front axle. The kingpins of the axle are 1300 mm apart. The spindle genths are essentially zero. What should be the wheel base of the tractor if there is no slippage of any of the wheels?

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A 2-wheel drive 35hp tractor has 1.5 rear wheel diameter. The engine runs at 1200 rev/min. the total reduction of speed is 30:1. Find the travelling speed of the tractor in km/h and the tractive force at each driving wheel.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A motor has a wheel base of 2.73 m and pivot centre of 1.065 m. the rear and front wheel track is 1.217 m. calculate turning circle radius of the outer front and inner rear wheels when the angle of inside lock is 40° and outside lock is 32°.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A motor car has a wheel base of 2.73 m and pivot centre of 1.065 m. the front and rear wheel track is 1.217 m. What will be angle of outside lock and turning circle radius of the outer front and inner rear wheels when the angle of inside lock is 40°?

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A tractor with a mass of 1600 kg develops a maximum tractive effort of 3000 N in top gear on a concrete surface. The total rolling resistance is 160 N. If the gradient angle is defined as the angle that the inclined plane makes with the horizontal, the maximum gradient can be negotiated by the tractor is _________

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A tractor has 8 forward speeds. The speed ratio varies in exact geometrical progressions. If the speed ratio in highest and lowest gear are 14.9:1 and 108:1, the geometrical constant will be __________

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A safety clutch is mounted on the drive shaft of a mower cutter bar. The clutch disc is active on both sides and has inner and outer diameters of 6 and 14 cm respectively. The friction co-efficient of the material of the clutch has to start slipping at 10Nm torque, the pressure acting on the clutch plate (assuming uniform pressure conditions) will be _______

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A power operated chaff cutter is used for cutting Napier grass of density 640 kg/m^3 at 800 rpm speed. If blades make a clearance angle of 18° between the knife support assembly and the plan of rotation and distance of inner edge of throat from flywheel centre is 10 cm. What will be the theoretical length of cut without feed interference using 4 knives?

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A 2-wheel drive 35 HP tractor has 1.5 m rear wheel diameter. The engine runs at 1200 rev/min. The total reduction of speed is 30:1. Find the travelling speed of the tractor in km/h and tractive force at each driving wheel.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A two-wheel drive tractor is pulling a load of 12 KN horizontally on levelled surface at forward speed of 5km/hr. The rolling radius of traction wheel and wheel slip are 0.65m and 20% respectively. If rear axle torque is 9KNm the tractive efficiency is ______

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A tractor having weight as 1500 KGF is brought to a speed of 10 KMPH in 10 seconds by applying a uniform acceleration. Calculate initial fore on tractor.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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Which of the following is not a system of lubrication used on stationary engines, tractor engines and automobiles?

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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What HP of tractor is suitable for a 40 hectares farm?

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A tractor has 1.6 m rear wheel diameter. If the e gear ratio of final drive and differential gear is 5:1 and 4:1 respectively calculate forward speed of tractor in kilometre per hour.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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Let x be the track width of the vehicle, then which of the following expression is correct for vertical reaction Q at the two outer or inner wheels?

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A multiple disc clutch is composed of 5 steels and 4 bronze discs. The clutch is required to transmit 16 Nm of torque. If the inner diameter is restricted to 50 mm, determine the necessary outer diameter of the discs. (Co-efficient of friction=0.1)

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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In an epicyclic gear train, one arm carries two wheels A and B having 25 teeth and 35 teeth respectively. If the arm rotates at 100 rpm in clockwise direction about centre of wheel A which is fixed, then speed of wheel on its own axis will be?

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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In an epicyclic gear train, an arm carries two wheels ‘A’ and ‘B’ having 24 teeth and 30 teeth respectively. If the arm rotates at 100 rpm in the clockwise direction about the centre of the wheel. ‘A’ which is fixed, then the speed of wheel on its own axis is _____

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A single plate clutch with both sides effective, has an outer diameter of 30 cm and inner diameter of 20 cm. the maximum intensity of pressure at any point in the contact surface is not exceed 1 kg/cm^2. If the co-efficient of friction is 0.3, determine the horse power transmitted by a clutch speed of 2000 rev/min.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A Proell governor has equal arms of length 300 mm. The upper and lower ends of the arms are pivoted on the axis of the governor. The extension arms of the lower links are each 80 mm long and parallel to the axis when the radii of rotation of the balls are 150 mm and 200 mm. The mass of each ball is 10 kg and the mass of the central load is 100 kg. Determine the range of speed of the governor.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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