Question

Rolling plough bottom exists in the following

• A. Chisel plough
• B. Mould board plough
• C. Disc plough
• D. Cultivator

Hint:

MB Plough "slices and slides." Disc Plough "rolls and cuts."

Answer 1

The Correct Option is C

Step 1: Concept
Plough bottoms are either stationary (sliding) or rotating (rolling).

Step 2: Meaning
A stationary bottom (like the MB plough) relies on the soil sliding over a fixed surface.

Step 3: Analysis
A disc plough uses large, rotating steel concave discs to cut and turn the soil. Because the part of the implement that contacts the soil is a revolving circle, it is referred to as a rolling plough bottom. This makes it ideal for sticky or stony soils where stationary ploughs would get stuck.

Step 4: Conclusion
The disc plough is the implement with a rolling bottom.
Final Answer: (C)