How much percentage of water or moisture is contained by green sand co – McqOptions

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1.	How much percentage of water or moisture is contained by green sand cores?
A.	5%
B.	10%
C.	20%
D.	40%
Answer» B. 10%

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In dielectric baker systems, cement plates are normally used for supporting the cores.
The process of making green sand cores generally consumes much time as compared to that of dry sand cores.
In dielectric core baker system, a metal used generally requires a low value of K (dielectric constant of material)
IN_DIELECTRIC_BAKER_SYSTEMS,_CEMENT_PLATES_ARE_NORMALLY_USED_FOR_SUPPORTING_THE_CORES.?$
The process of making green sand cores generally consumes much time as compared to that of dry sand cores?
In dielectric core baker system, metal used generally requires a low value of K (dielectric constant of material)
How much percentage of water or moisture is contained by green sand cores?
It is not possible to bake dry sand cores by dielectric core bakers.
Core finishing also includes a coating of refractory materials on cores to protect them.
After baking of cores in dielectric core bakers, they can be directly used in the moulding box.