Question detail
What does reducing time spent near radioactive sources accomplish?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and nuclear radiation
Question
- A. Increases radiation exposure
- B. Decreases the risk of contamination
- C. Reduces the total radiation dose received
- D. Makes handling easier
Answer
The correct answer is C: Reduces the total radiation dose received.
Explanation
The correct answer is C: Reduces the total radiation dose received. This supports the learning objective "Describe safety precautions for handling radioactive sources, including reducing time, increasing distance and using shielding." in Radioactive contamination because it uses the correct atomic and nuclear radiation relationship for Atoms and nuclear radiation. The other options are less suitable because they do not match the required Radioactive contamination idea: Increases radiation exposure; Decreases the risk of contamination; Makes handling easier.
Common mistake
Safety Precautions Misunderstanding
Students often confuse the purpose of reducing time, increasing distance, and using shielding when handling radioactive sources, thinking they are interchangeable.
Emphasize that reducing time minimizes exposure duration, increasing distance reduces radiation intensity, and using shielding blocks radiation effectively. Each method serves a distinct purpose in radiation safety.
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