Q. The composition of electrician solder is
A) Iron-37%, tin-63%
B) lead-37%, tin-63%
C) Steel-37%, copper-63%
D) lead-37%, Steel-63%
✔ Correct Answer: lead-37%, tin-63%
Exam Insight
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A) Iron-37%, tin-63%
B) lead-37%, tin-63%
C) Steel-37%, copper-63%
D) lead-37%, Steel-63%
✔ Correct Answer: lead-37%, tin-63%
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