Handpicking

Q. Stones can be separated from a bowl of rice by _______.

1. handpicking method
2. threshing method
3. winnowing method
4. sedimentation method

Q.

Paheli bought some vegetables such as French beans, lady’s finger, green chilies, brinjals, and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

1. Winnowing

2. Sieving

3. Threshing

4. Hand-picking

Q. Rahul bought a sack of rice. He saw that there were a few stones present in it. He can utilise method to separate stones from the rice grains.

1. handpicking
2. decantation
3. sedimentation

Q.

Why is wastewater passed through bar screens in a wastewater treatment plant?

1. To remove dissolved chemicals

2. To remove the large objects

3. To stop the flow of insects

4. To remove microbes

Q.

4 Which separation method is performed by hand?

Q. Water in a container is mixed with dust, sand, and oil. How can we get the water back?

Q. [TBQ.6.(a)]
How are the components of mixture separated by simple methods?

Q.

15 When the process of handpicking is used?