Nuclear Cardiology Boards Practice Test

DOT Label Yellow II represents a moderate level of radioactivity for surface shipments, so the limits you look for are a practical balance between contact exposure, exposure at a distance, and potential surface contamination. The correct statement lines up with those standard thresholds: a surface radiation rate at the package surface of less than 50 mR/h, the exposure at one meter less than 1.0 mR/h, and a removable surface contamination limit of less than 6600 dpm per 300 cm^2. This combination reflects Yellow II’s middle position between the lower Yellow I and higher Yellow III categories. The wipe test value is specifically set to 6600 dpm/300 cm^2 for Yellow II, and the distance exposure values decrease with distance as expected by the inverse-square principle, so a surface rate around tens of mR/h and a sub-1 mR/h at 1 m are consistent.