If three workers operate underground, what is the total minimum fresh air required per minute?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the Plumbing Safety Module 2 Test. Review key safety principles, engage with interactive quizzes, and get in-depth explanations. Master the essentials of plumbing safety and ensure compliance with industry standards.

Multiple Choice

If three workers operate underground, what is the total minimum fresh air required per minute?

Explanation:
Fresh air ventilation is calculated on a per-person basis to keep oxygen levels safe and dilute contaminants. The typical minimum is about 200 cubic feet per minute for each worker. For three workers, multiply 200 by 3 to get 600 cubic feet per minute. So the total minimum fresh air required per minute is 600. The other options would correspond to lower (or higher) per-person allocations and don’t match the standard 200 cfm per person.

Fresh air ventilation is calculated on a per-person basis to keep oxygen levels safe and dilute contaminants. The typical minimum is about 200 cubic feet per minute for each worker. For three workers, multiply 200 by 3 to get 600 cubic feet per minute. So the total minimum fresh air required per minute is 600. The other options would correspond to lower (or higher) per-person allocations and don’t match the standard 200 cfm per person.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy