Question

tin/lead solder for automotive applications consists of approximately _______ and melts at approximately 370°f.
select one:
○ a. 40% tin and 60% lead
○ b. 50% tin and 50% lead
○ c 30% tin and 70% lead
○ d. 60% tin and 40% lead

Explanation:

Tin - lead solders for automotive applications with a melting point around 370°F typically have a composition of 60% tin and 40% lead. This is a well - known composition in materials science for such solders.

Answer:

D. 60% tin and 40% lead