Question

A plough attachment, which is a miniature plough bottom that cuts a narrow, shallow furrow ahead of the shin and moves trash and roots toward the main furrow so that they are completely covered by the mouldboard, is called as

• A. Jointer
• B. Coulter
• C. Subsoiler
• D. Weed hook

Hint:

Think about which small plough attachment specifically pre-cuts a shallow furrow to bury surface trash under the mouldboard.

Answer 1

The Correct Option is A

This question checks knowledge of plough attachments used in tillage implements and their specific jobs.

1. Jointer: a small miniature plough bottom mounted ahead of the shin. It cuts a narrow, shallow furrow and throws trash and roots into the main furrow so the mouldboard buries them completely. This matches the description exactly.
2. Coulter: a rotating disc or knife fitted ahead of the share that cuts the furrow slice vertically from the unploughed land, but it does not handle trash burial the way a jointer does.
3. Subsoiler: a heavy tool used to break up compacted soil layers well below normal ploughing depth, unrelated to surface trash covering.
4. Weed hook: a simple attachment used to clear weeds and trash caught on the plough beam or standard, not a miniature plough bottom.

The description of a miniature plough bottom that pre-cuts a shallow furrow and pushes trash under the mouldboard is the textbook definition of a jointer, so option (A) is correct.