Massachusetts Plumbers Journeyman Practice Exam

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Study for the Massachusetts Plumbers Journeyman Exam. Prepare with multiple choice questions, hints, and detailed explanations. Ace your licensing exam with confidence!

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If the flange is composed of cast iron, what is the minimum thickness the flange must have?

1/4"
1/2"
3/4"
1"

The correct answer is: 1/4"

The minimum thickness requirement for a cast iron flange is indeed 1/4 inch. This specification is outlined in relevant plumbing codes and standards to ensure the structural integrity and durability of the flange. A flange that is too thin may not withstand the forces exerted during normal plumbing operations or installation, which could lead to failures such as leaks or breakages over time. Therefore, a thickness of 1/4 inch strikes a balance between strength and practicality for many applications in plumbing systems.