Question: Use a simple event tree to estimate the frequency for an overfill event where Human Error of 0.1 /year results in connection of a tank

Use a simple event tree to estimate the frequency for an overfill event where Human Error of 0.1 /year results in connection of a tank truck to an already full storage tank equipped with a high-level interlock to the feed pump of PFD=0.01 and flammable gas detection interlock to the feed valve of PFD=0.1. Show your results
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