Cores are used to Form internal cavities in the casting and Improve mould surfaceand used to Form a part of a green sand mould.
core is a device used in casting and moulding processes to produce internal cavities and reentrant angles .
The core is normally a disposable item that is destroyed to get it out of the piece
64) Cores are used to
Answer is:
all of these
Explanation:
Related Workshop Technology MCQ with Answers
Answer is:
drop core
Explanation:
When a hole or cavity to be cored is not in line with the parting surface, then a drop core is used.
Answer is:
steel
Explanation:
Steel will require the largest size of riser for the same size of casting.
Answer is:
chills and padding
Explanation:
A chill is an object used to promote solidification in a specific portion of a metal casting mold. The directional solidification in casting can be improved by using Chills and padding.
Answer is:
none of the above
Explanation:
Permanent mold casting is a metal casting process that employs reusable molds , usually made from metal. The most common process uses gravity to fill the mold, however gas pressure or a vacuum are also used.