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 inside diameter for new manholes?

2 feet
3 feet
4 feet
5 feet

The correct answer is: 4 feet

The minimum inside diameter for new manholes is 4 feet. This size is crucial to ensure safe access for workers during maintenance and inspection operations. It provides enough space for personnel to maneuver and handle equipment, minimizing the risk of injury. Additionally, the 4-foot diameter allows for effective airflow and reduces the likelihood of hazardous conditions. Smaller diameters may restrict access and limit the ability to perform necessary tasks, making compliance with safety regulations more challenging. The other diameter options either fall below this standard or are not typically required for regular manhole constructions, which is why they would not meet the operational needs for access and safety.