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A hubless brake drum cannot be machined because it cannot be held in a lathe.

A. True
B. False

Answer :

Final answer:

The assertion that a hubless brake drum cannot be machined because it can't be held in a lathe is false. Although it requires special machinery and adjustments, the drum can be machined properly.

Explanation:

The statement is False. A hubless brake drum can be machined. The brake drum's machining process is all about removing the uneven layer of metal to make it smooth for effective braking. This is possible even for the hubless brake drum. The difference is that it requires some specific machineries and adjustments in order to hold and revolve the drum in the exact center. While it might be more complex, it's not impossible.

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