A wire of 0.1 mm dia is drawn from a rod of 15 mm diameter dies giving reductions of 20%, 40% and 80% are available. For minimum error in the final size, the number of stages and reduction at each stage respectively would be

5 stage and reduction of 80%, 80%, 40%, 40%, 20% is sequence

3 stages and 80% reduction for all three stages

4 stages and 80% reduction for first three stages followed by a finishing stage of 20% reduction

5 stage and reduction of 80%, 80%, 40%, 40%, 20% is sequence

A wire of 0.1 mm dia is drawn from a rod of 15 mm diameter dies giving

1.	A wire of 0.1 mm dia is drawn from a rod of 15 mm diameter dies giving reductions of 20%, 40% and 80% are available. For minimum error in the final size, the number of stages and reduction at each stage respectively would be
A.	3 stages and 80% reduction for all three stages
B.	4 stages and 80% reduction for first three stages followed by a finishing stage of 20% reduction
C.	5 stage and reduction of 80%, 80%, 40%, 40%, 20% is sequence
D.	None of these
Answer» C. 5 stage and reduction of 80%, 80%, 40%, 40%, 20% is sequence

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A wire of 0.1 mm dia is drawn from a rod of 15 mm diameter dies giving reductions of 20%, 40% and 80% are available. For minimum error in the final size, the number of stages and reduction at each stage respectively would be

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