Question:-
Consider the following ingredients used in molding:
1. Dry silica sand
2. Clay
3. Phenol formaldehyde
4. Sodium silicate
Those used for shell mould casting include
Option (A)
1, 2 and 4
Option (B)
2, 3, and 4
Option(C)
1 and 3
Option(D)
1, 2, 3, and 4
Correct Option:
(C)
Question Solution:
In shell moulding, dry silica sand and phenol formaldehyde used only
question-answer-faq-3309