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. |
A) 1, 2 and 3
B) 2 and 3
C) 1 and 3
D) 1 and 2
Correct Answer: B
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