For a boiler plate having a thickness of 20 mm, the recommended rivet diameter is ______________ mm?
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Answer: D. 40
Explanation
According to Unwin's formula for boiler riveting, the diameter of the rivet is related to plate thickness, but 40 mm is oversized for 20 mm plate.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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