Industrial paint curing booths require constant negative air pressure to prevent ambient dust from infiltrating through door seams. If the exhaust ventilation system operates below its rated airflow, interior pressure equalizes with the workshop, permitting airborne contaminants to settle onto wet surfaces. During a quality inspection, a supervisor notices that several freshly coated panels are contaminated with dust particles, despite all door seals being fully functional and airtight.
Based on the passage, what can be logically concluded about the curing booth?
- AThe door seals became compromised by airborne dust particles during the inspection.
- BThe supervisor will permanently shut down the workshop and replace all curing equipment.
- The exhaust ventilation system failed to maintain adequate airflow to preserve negative pressure.Answer
- DThe paint mixture contained improper chemical additives that attracted ambient workshop contaminants.
Answer
The exhaust ventilation system failed to maintain adequate airflow to preserve negative pressure.
The passage explains that dust enters the booth when negative pressure is lost, which occurs when the exhaust system fails to maintain rated airflow. Because the inspection confirmed that all door seals were fully functional and airtight, the presence of dust contamination leads to the direct logical conclusion that the exhaust ventilation system did not maintain sufficient airflow.
Step-by-Step Solution
Key Concept
Drawing a deduction by evaluating stated operational constraints against observed facts
Estimated Time:45s