Which of the following methods are used for obtaining directional solidification for riser design? 1. Suitable placement of chills. 2. Suitable placement of chaplets. 3. Employing padding. Select the correct answer:

Which of the following methods are used for obtaining directional soli

1.	Which of the following methods are used for obtaining directional solidification for riser design? 1. Suitable placement of chills. 2. Suitable placement of chaplets. 3. Employing padding. Select the correct answer:
A.	1 and 2
B.	1 and 3
C.	2 and 3
D.	1, 2 and 3
Answer» C. 2 and 3

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Which of the following methods are used for obtaining directional solidification for riser design? 1. Suitable placement of chills. 2. Suitable placement of chaplets. 3. Employing padding. Select the correct answer:

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