New York Low Pressure Boiler COF Practice

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Study for the New York Low Pressure Boiler COF with flashcards and multiple choice questions. Be fully prepared for your exam with hints and explanations for each question!

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According to code, how far should a 5/16" tube extend past the tube sheet without bevel or recess?

1/4"
3/8"
1/2"
5/16"

The correct answer is: 3/8"

The correct extension for a 5/16" tube past the tube sheet, without any bevel or recess, is indeed 3/8". This distance is specified in boiler codes to ensure proper strength and sealing of the tube within the tube sheet. If the tube extends too short, it may not provide adequate support or may cause leaks at the joint. Conversely, if it exceeds the specified 3/8", it could lead to potential issues such as excessive stress on the tube or difficulty in maintenance. The 3/8" extension is considered optimal for creating a secure connection while accommodating expansion and contraction during normal boiler operation. This standard helps maintain the integrity and reliability of the boiler system over time, ensuring safe and efficient performance. Understanding these specifications is crucial for compliance and safety in boiler operation and maintenance.