Residual radiation is an external exposure hazard?

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Multiple Choice

Residual radiation is an external exposure hazard?

Explanation:
Residual radiation remains in the environment after the original source is removed, so the danger it poses is from outside the body. This makes it an external exposure hazard, since the radiation can irradiate someone who is near contaminated surfaces, equipment, or spaces. Internal exposure would require radioactive material to be inside the body via ingestion or inhalation, which is a different pathway not defined by residual radiation itself. Therefore, residual radiation is external, not internal.

Residual radiation remains in the environment after the original source is removed, so the danger it poses is from outside the body. This makes it an external exposure hazard, since the radiation can irradiate someone who is near contaminated surfaces, equipment, or spaces. Internal exposure would require radioactive material to be inside the body via ingestion or inhalation, which is a different pathway not defined by residual radiation itself. Therefore, residual radiation is external, not internal.

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