Tag: dry methods of separation

Questions Related to dry methods of separation

Threshing is used for separating

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. two same size particles

  2. same color particles

  3. different color particles

  4. seeds from harvesting stalks

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Correct Option: D
Explanation:

Threshing is used for separating seeds from the harvested stalks.

This can be done by either beating the stalks or by using machines.

Combine harvesters are used to

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Harvest

  2. Thresh

  3. Winnow

  4. All the above

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Correct Option: D
Explanation:

Combine harvesters are machines which harvest, threshes and winnows in a single operation. Combine harvesters are used in developed countries like the USA. In India, these machines can be seen in the farms of Punjab.

Winnowing is the process used to separate particles of ____________.

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. heavier and lighter weight

  2. only two heavier particles

  3. only two lighter paticles

  4. None of the above

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Correct Option: A
Explanation:

The process of separation of lighter particles from heavier particles; with the help of wind; is called winnowing. This method is used for separating grains from husk.
Hence option A is correct.