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Questions and Answers
What is the percentage of work done in pulling an average plow?
What is the percentage of work done in pulling an average plow?
What is the force required to pull a moldboard plow with specified dimensions and soil draft?
What is the force required to pull a moldboard plow with specified dimensions and soil draft?
What percentage of work of the plow is used in cutting the furrow slice?
What percentage of work of the plow is used in cutting the furrow slice?
What percentage of work of the plow is used in turning the slice of soil?
What percentage of work of the plow is used in turning the slice of soil?
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Where do all the horizontal and vertical forces in the plow meet?
Where do all the horizontal and vertical forces in the plow meet?
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What type of plow is designed to reduce friction by making a rolling bottom?
What type of plow is designed to reduce friction by making a rolling bottom?
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What is the average speed of the plow mentioned, at which drawbar horsepower is calculated?
What is the average speed of the plow mentioned, at which drawbar horsepower is calculated?
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Which of the following options is NOT a measure of work done by the plow?
Which of the following options is NOT a measure of work done by the plow?
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What machine is designed for planting pre-germinated rice seed in rows?
What machine is designed for planting pre-germinated rice seed in rows?
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In a 200-hectare corn project, what is the field tilled in?
In a 200-hectare corn project, what is the field tilled in?
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What size of heavy-duty offset-disk harrow should be selected if the tractor operates at 5 kph?
What size of heavy-duty offset-disk harrow should be selected if the tractor operates at 5 kph?
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What is the number of plants for a 2-hectare farm planted with corn at a spacing of 25 cm x 45 cm?
What is the number of plants for a 2-hectare farm planted with corn at a spacing of 25 cm x 45 cm?
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What method involves scattering seeds on the surface of prepared soil?
What method involves scattering seeds on the surface of prepared soil?
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What mechanism removes weeds or grasses from crops mechanically?
What mechanism removes weeds or grasses from crops mechanically?
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What is a planting method where seeds are deposited in a water-soluble tape?
What is a planting method where seeds are deposited in a water-soluble tape?
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What term describes the ratio between the number of weeds removed and the number present in an area?
What term describes the ratio between the number of weeds removed and the number present in an area?
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What will happen when a tire is implemented on a tractor?
What will happen when a tire is implemented on a tractor?
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Which type of bearing is NOT used for disk plow bottoms?
Which type of bearing is NOT used for disk plow bottoms?
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Which term refers to the number of pounds of seeds planted per acre that ensures quality plants without thinning?
Which term refers to the number of pounds of seeds planted per acre that ensures quality plants without thinning?
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What type of implement is designed to attach to the three-point hitch and hydraulic lift system of a tractor?
What type of implement is designed to attach to the three-point hitch and hydraulic lift system of a tractor?
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What is the purpose of ballast on a harrow?
What is the purpose of ballast on a harrow?
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What is the correct application rate of a granular broadcast spreader to apply 1 ton of manure over a distance of 1000 meters with a swath of 2 meters?
What is the correct application rate of a granular broadcast spreader to apply 1 ton of manure over a distance of 1000 meters with a swath of 2 meters?
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To reduce the size of spray particles, which action is recommended?
To reduce the size of spray particles, which action is recommended?
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What does a safety gray color signify at the ASAE safety code?
What does a safety gray color signify at the ASAE safety code?
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If a sprocket is used for a chain, what is used for a flat belt?
If a sprocket is used for a chain, what is used for a flat belt?
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What does a green and white color code on a pipeline indicate?
What does a green and white color code on a pipeline indicate?
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What equipment is used to kill weed seeds by microwave heating during weeding operations?
What equipment is used to kill weed seeds by microwave heating during weeding operations?
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What is the function of a rotating device inside the hopper of gravity flow applicators?
What is the function of a rotating device inside the hopper of gravity flow applicators?
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Which type of external shaft on an agricultural tractor provides rotational power to front and side mounted implements, other than the PTO?
Which type of external shaft on an agricultural tractor provides rotational power to front and side mounted implements, other than the PTO?
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What is the standard stroke length of hydraulic remote control cylinders for trailing-type agricultural implements?
What is the standard stroke length of hydraulic remote control cylinders for trailing-type agricultural implements?
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What is the minimum thrust per drawbar horsepower of hydraulic remote control systems?
What is the minimum thrust per drawbar horsepower of hydraulic remote control systems?
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What is the purpose of using chaff in agricultural practices?
What is the purpose of using chaff in agricultural practices?
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What is the average width of the cutter bar actually utilized?
What is the average width of the cutter bar actually utilized?
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What is the time lost in crossing the dike for strip tillage?
What is the time lost in crossing the dike for strip tillage?
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What is the effective field capacity of the machine?
What is the effective field capacity of the machine?
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How much time is lost in turning and other idle time per hectare?
How much time is lost in turning and other idle time per hectare?
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What is the time lost for removing field obstruction and clogging per hectare?
What is the time lost for removing field obstruction and clogging per hectare?
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What type of steel contains 0.035-0.4% carbon and is widely used for structural purposes?
What type of steel contains 0.035-0.4% carbon and is widely used for structural purposes?
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What term describes the ratio between the mass of fuel consumed per unit of time and the corresponding measured power?
What term describes the ratio between the mass of fuel consumed per unit of time and the corresponding measured power?
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What is the term for the center to center distance between overlapping broadcast applications?
What is the term for the center to center distance between overlapping broadcast applications?
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Study Notes
Soil and Plowing Mechanics
- Soil draft for pulling a moldboard plow on clay loam is 8 psi.
- Average force required for a single moldboard plow varies: 314 kg, 253 kg, or 157 kg depending on conditions.
- Up to 50% of work done in pulling an average plow relates to soil condition and machinery alignment.
Work Distribution in Plowing
- Work percentage for cutting the furrow slice is approximately 43% and 58%.
- Turning the soil slice utilizes about 34% of the plow's work.
Plow Design and Functionality
- Center of resistance in a plow refers to the point where horizontal and vertical forces converge.
- Rotary plows are designed with rolling bottoms to minimize soil friction during tillage.
Farming Equipment and Capacity
- Effective field capacity of a harrow operating at 5 kph with 75% efficiency is determined by size and speed.
- Number of plants for corn farming at 25 cm x 45 cm spacing on a 2-hectare farm can yield up to 177,777 plants.
Seeding Techniques
- Drill seeding is characterized by direct seed placement, while broadcasting refers to scattering seeds on prepared soil.
- Precision planting involves the controlled deposition of seeds using water-soluble tape technology.
Weed Management
- Weeders are mechanical devices employed to eliminate weeds or grasses from crops.
- The weeding index is the ratio of weeds removed by a weeder compared to the total weed population in a given area.
Agricultural Machinery and Performance
- Field capacity reflects the efficiency and productivity of machinery utilized in farming, including considerations of downtime and operational limits.
- The specific fuel consumption is a crucial metric relating the mass of fuel to the corresponding power output of engines.
Safety and Regulations in Agriculture
- Safety codes designate specific colors for different applications, ensuring clear communication of hazards in agricultural settings, such as green and white for low-hazard liquids.
- Understanding machinery parts, like the crop gatherer on combine harvesters, is essential for safety and efficiency in operations.
Hydraulic and Mechanical Systems
- Hydraulic remote control cylinders for agricultural implements typically range from 8 to 16 inches in stroke length and are vital for equipment maneuverability and function.
- Different PTO designs, such as auxiliary and secondary PTOs, provide rotational power for various implements beyond standard operations.
Miscellaneous Agricultural Terms
- The term "seeding rate" defines the optimal quantity of seeds planted per acre to achieve desired plant quality without necessitating thinning.
- Ballast compartments are used in harrows to improve penetration into the soil, optimizing performance during tillage activities.
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Description
Test your knowledge on soil and plowing mechanics, including soil drafts, work distribution in plowing, and the design of plows. This quiz also covers efficient farming techniques and equipment capacity to enhance your understanding of agricultural practices.
