Which of the following pattern materials are used in Precision Casting – McqOptions

MCQOPTIONS

1.	Which of the following pattern materials are used in Precision Casting?1. Plaster of Paris2. Plastics3. Anodized aluminium alloy4. Frozen mercurySelect the correct answer using the codes given below:
A.	1 and 2
B.	2 and 4
C.	3 and 4
D.	1 and 3
Answer» C. 3 and 4

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