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A. 793 mR/hr is correct Detector Exposure Rate X (Detector Distance)2 Entry Exposure Rate = —————————————————————- (Entry Activity Distance)2 0.1 mR/hr X (178 feet)2 Entry Exposure Rate = —————————————————————- (2 feet)2 0.1 mR/hr X 31,684 feet2 Entry Exposure Rate = —————————————————————- (2 feet)2 3168.4 mR/hr feet2 Entry Exposure Rate = —————————————————————- (2 feet)2 3168.4 mR/hr feet2 Entry Exposure Rate = —————————————————————- 4 feet2 Entry Exposure Rate = 792.1 mR/hr Entry Exposure Rate = 793 mR/hr Click your browser “BACK” button to continue with the scenario. |