

MCQOPTIONS
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1. |
Consider that the following materials are usable for manufacturing dies, moulds in the investment casting process for large-scale production:1. Aluminium alloy2. Magnesium alloy3. Brass4. Low-carbon steelWhich of the above are correctly usable? |
A. | 1, 2 and 3 only |
B. | 1, 2 and 4 only |
C. | 3 and 4 only |
D. | 1, 2, 3 and 4 |
Answer» B. 1, 2 and 4 only | |