Which separation techniques will you apply for the separation of Small pieces of metal in the engine oil of a car.

Firstly, filtration is practical when the metal fragments are larger than oil particles. Using a fine filter, we physically separate the larger metal pieces from the oil.

Next, centrifugation utilizes the density difference between metal and oil. By subjecting the mixture to centrifugal force, the denser metal particles settle at the bottom, making it easier to separate them from the oil.

For magnetic metal fragments, magnetic separation is effective. Using a magnet, we attract and separate the magnetic pieces from the non-magnetic oil.

Lastly, decantation relies on gravity. Allowing the mixture to stand enables the heavier metal pieces to settle at the bottom, letting us pour off the clear oil, leaving the settled metal fragments behind.

The method we choose will depend on the size, nature, and magnetic properties of the metal fragments, ensuring an efficient separation from the engine oil.