Cores can be made within the mould by using moulding sand which is used for mould preparation.

Cores can be made within the mould by using moulding sand which is used for mould preparation. Correct Answer False

The cores are compact mass of core sand which is a special kind of sand. And cores are always prepared separately and then placed in mould cavity at a required location with proper alignment and accuracy. Core does not allow the liquid metal to occupy space for solidification in that part and hence help to produce hollowness in the casting component.

Related Questions

Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.Reason R: The sand used in slow sand filters is finer than that in rapid sand filtersSelect your answer based on the coding system given below:
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.
Reason R: The sand used in slow sand filters is finer than that in rapid sand filters
Select your answer based on the coding system given below: