White metal is an alloy of___________________?
Correct answer: A. None of these
- A. None of these
- B. Copper, tin and zinc
- C. Copper and lead
- D. Lead, tin and cadmium
Explanation
White metal is a broad term for bearing alloys, commonly based on lead or tin with additions such as antimony, copper or other elements. Since the listed lead-tin-cadmium combination is not the standard definition and the usual antimony-containing alloy is absent, none of these is the best option.
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