In chain drives, for higher speed and loads, suitable chains to be used are ______

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The centre to centre distance between two sprockets of chain drives is 600 mm. The chain drive is used to reduce the speed from 160 rpm to 90 rpm. The driving sprocket has 18 teeth and pitch circle diameter of 480 mm. Determine the pitch of the chain and teeth on driven sprocket.

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

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Determine the length of the chain having 200 mm pitch and is used for speed reduction from 340 rpm to 120 rpm. The numbers of teeth on driving and driven sprockets are 20 and 40 respectively. The centre to centre distance between 2 sprockets is 540 mm and diameter of driven sprocket is 450 mm.

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

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A chain is used for speed reduction from 240 rpm to 110 rpm. The number of teeth on driving sprocket is 22. The centre to centre distance between 2 sprockets is 540 mm and pitch circle diameter of driven sprockets is 480 mm. determine number of teeth on driven sprockets.

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

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The chain drive is used to reduce the speed from 180 rpm to 90 rpm, the driving sprocket has 20 teeth and pitch circle diameter of 500 mm. The centre to centre distance between the sprockets of chain drive is 550 mm. Determine total number of links.

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

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In chain drives the component with a cast throttled wheel is known as _______

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

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A 10 teeth sprocket is operating at 200 rpm and driving a 25 teeth sprocket through a chain. The pitch of the chain is 20 mm and ultimate strength is 20 KN. Calculate the average linear speed.

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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Pintle chains are made of ________

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

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The speed reduction in 1^st low gear of tractor box and differential with final drive are 5:1 and 45:1 for a tractor developing 30 KW at engine at an rpm of 2500 with overall efficiency of 85%. The torque is KN-m available at wheel axle?

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

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Chain and sprocket drive is used, where _____________

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

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Chain and sprocket drive is preferred, when two parallel shafts are placed at a distance of _______

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

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A V-belt operates at 25 m/s peripheral speed. The mass of the belt per unit length is 0.9 kg/m. The value of centrifugal tension in belt is ______

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

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A 20 teeth sprocket is operating at 150 rpm and driving a 43 teeth sprocket through a chain. The pitch of the chain is 250 mm and alternate strength is 10 KN. Determine the average torque applied to driven shaft at maximum power transmission.

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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The pitch of a chain is 200 mm. An 8 sprocket is operating at 250 rpm and driving a 25 teeth sprocket through the drain. The tension in the chain is 15 KN. Determine the maximum power.

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

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In a simple planetary gear drive, the sun gear is used to give drive a plant carrier mounted with 3 planetary gears, while ring gear is held stationary. If sun gear and all other planetary gears have 20 teeth each and ring gear has 60 teeth, the gear ratio will be __________

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

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A single reduction gear of 120 KW with a pinion of 150 mm pitch circle diameter and speed 550 rpm is supported in bearings on either side. Calculate the total load due to power transmission.

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

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Speed cones are associated to ________

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

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A 4*100 cm seed drill is to be operated at a forward speed of 3.6 km/h. The diameter of the ground wheel is 50 cm. a cup type metering mechanism with 10 cells on its periphery is used for dropping one seed in a hill. Power transmitted from the ground wheel shaft to the metering shaft with the help of chain and sprocket arrangement. If the desired plant population is 6000 per hectare and average emergence is 75% speed ratio between ground wheel shaft and metering shaft will be ____________

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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In a belt drive, the mass of the belt is 10 kg/m and its speed is 6 m/s. The drive transmits 20 KW of power. Determine the initial tension in the belt and the strength of the belt. The co-efficient of friction is 0.25 and wrap angle is 220°.

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

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Calculate the power transmitted by the belt and pulley arrangement, if tension on tight side of the belt is 50 kg and tension on slack side is 25 kg. The diameter and speed of driving pulley is 0.95 m and 350 rpm.

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

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A countershaft of engineering workshop is driven by electric motor with the help of canvas belt and pulley arrangement such that the speed of bet is 600 m/min and it transmits 50 KW. Find the difference between tension on either side of the belt.

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

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Pitch length of standard chain number 40 is ________

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

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Which of the following rollers are used for external drive?

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

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