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RCDD · Question #305
RCDD Question #305: Real Exam Question with Answer & Explanation
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Question
What is the air change requirement for a tunnel of 610 m (2000 ft) long with a diameter of 3.4 m (11 ft)?
Options
- AOne complete air change per hour
- BTwo complete air changes per hour
- CThree complete air changes per hour
- DFour complete air changes per hour
- EFive complete air changes per hour
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