British Standard Whitworth (B.S.W) thread is characterized by which angle and unit system?

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Multiple Choice

British Standard Whitworth (B.S.W) thread is characterized by which angle and unit system?

Explanation:
Thread standards are identified by the system of measurement and the thread angle. British Standard Whitworth uses inches (imperial) and has a 55-degree thread angle. This 55-degree profile is what sets Whitworth apart from metric threads, which use a 60-degree angle. So the description that it is an imperial base screw thread standard with a 55-degree angle best fits BSW.

Thread standards are identified by the system of measurement and the thread angle. British Standard Whitworth uses inches (imperial) and has a 55-degree thread angle. This 55-degree profile is what sets Whitworth apart from metric threads, which use a 60-degree angle. So the description that it is an imperial base screw thread standard with a 55-degree angle best fits BSW.

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