Question

Combine harvesters are used to?

• A. Harvest
• B. Thresh
• C. Winnow
• D. All of the above.

Answer 1

The correct option is D

All of the above.

The correct option is D.

Explanation of the correct option:

1. The combine harvester, sometimes known as the combine, is a device made to efficiently grow a variety of agricultural crops.
2. The word comes from combining three separate winnowing, threshing, and reaping processes into one.
3. A combine is a piece of equipment that recovers grain while also cutting standing crops.
4. The primary mechanism of operation is the result of friction between the material and the threshing lobes or rasp bars.
5. The speed of the rotor and cylinder as well as the distance between the concave's surface and the threshing drum determine how effectively the rubbing motion works.

Explanation of the incorrect options:

Option A:

The act of gathering a plant's useful parts is known as the harvest.

Option B:

It uses a flail or a rotating mechanism to normally separate grain from (corn or other crops).

Option C:

It refers to removing the chaff from grain by blowing a stream of air across it.

Final answer:

A combine harvester is used to perform all the functions that are winnowing, threshing, and harvesting.