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

Step 1: Note the key clues in the description.
The part is called a "miniature plough bottom," it sits "ahead of the shin," and it "cuts a narrow, shallow furrow."
Its job is to move trash and roots toward the main furrow so the mouldboard buries them fully.

Step 2: Match the clues to known plough parts.
A coulter cuts the furrow slice vertically but does not act as a small second plough bottom for trash burial.
A subsoiler works deep below the furrow to break hardpan, not near the surface ahead of the shin.
A weed hook only clears debris caught on the beam, it does not cut soil at all.

Step 3: Confirm the jointer definition.
A jointer is defined as exactly this: a small plough bottom fixed ahead of the main share and shin that pre-cuts a shallow furrow and flips trash into the main furrow for full mouldboard coverage.

Final Answer:
The attachment described is the jointer. \[ \boxed{\text{Jointer}} \]