Consider the following statements: 1. From design considerations, it is always advantageous to place cast iron ribs on the tension side rather than on the compression side. 2. Cast iron is an excellent choice for machine tool guides and frames 3. Cast iron parts have a low notch sensitivity. Which of these statements are correct?

Consider the following statements: 1. From design considerations, it i

1.	Consider the following statements: 1. From design considerations, it is always advantageous to place cast iron ribs on the tension side rather than on the compression side. 2. Cast iron is an excellent choice for machine tool guides and frames 3. Cast iron parts have a low notch sensitivity. Which of these statements are correct?
A.	1, 2 and 3
B.	2 and 3
C.	1 and 3
D.	1 and 2
Answer» C. 1 and 3

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