Texas Wastewater Class B Practice Exam

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Prepare for the Texas Wastewater Class B Exam. Study with flashcards and multiple choice questions, each question accompanied by hints and explanations. Ace your exam!

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What is the minimum entry access diameter required for new manholes?

18 inches
20 inches
24 inches
30 inches

The correct answer is: 24 inches

The minimum entry access diameter required for new manholes is indeed 24 inches. This specification is crucial for ensuring safe and efficient access for maintenance personnel and equipment. A 24-inch diameter allows ample space for workers to enter and exit the manhole safely while also accommodating the necessary tools and safety equipment. Options with smaller diameters, such as 18 inches or 20 inches, would not provide sufficient space for safe entry and could hinder maintenance activities. Also, while a 30-inch diameter provides even more access, it exceeds the minimum requirement established for manhole construction, making 24 inches the standard threshold needed to balance accessibility and structural integrity. Therefore, the correct answer reflects industry standards for manhole access.