Correct option is A
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Operation Speed of Rotavator Blades:
· A rotavator blade typically operates at a speed range of
180–320 rpm, depending on the soil type and desired output.
· Lower speeds are used for heavier soils, while higher speeds can be used for lighter soils.
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Purpose of the Speed Range:
· At this speed, the rotavator ensures proper tilling and soil preparation without causing excessive wear and tear on the equipment.