Q149
Tandem drawing of wires and tubes is necessary because
A.
It is not possible to reduce at one stage
B.
Annealing is needed between stages
AnswerC.
Accuracy in dimensions is not possible otherwise
D.
Surface finish improves after every drawing stage
Answer: Option B
Solution
Answer: Option B
Solution:
Tandem drawing is the drawing force of the process through two dies in tandem was evaluated by being compared with the drawing force of a conventional drawing process.Tandem drawing of wires and tubes is necessary because annealing is needed between stages.