Question

Vertical suction of plough influences _____

• A. Pulverization
• B. Depth of cat (cut)
• C. Width of cat (cut)
• D. Direction of pull

Hint:

- Vertical suction = Controls the depth of cut.
- Horizontal suction = Controls the width of cut.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
A moldboard plough must be properly adjusted to cut, lift, and turn the soil slice efficiently.
This adjustment is called "suction" (or clearance) and includes both vertical and horizontal clearances.
Detailed Explanation:
Let us define the types of suction in a moldboard plough:
- Vertical Suction (Vertical Clearance): This is the maximum clearance measured between the lower edge of the landside and a flat horizontal surface when the plough is resting on its share point and heel of the landside.
Vertical suction is designed to pull the plough into the ground when it is dragged forward.
By providing downward pitch to the share, vertical suction ensures the plough penetrates to and maintains its proper operating depth.
Therefore, adjusting the vertical suction directly influences the depth of cut.
- Horizontal Suction (Side Suction): This is the clearance measured horizontally between the landside and the furrow wall, which helps the plough maintain its proper width of cut.

Step 2: Final Answer:
The vertical suction of a plough directly influences the depth of cut.