What is the CNSC's yearly dose limit for the whole body?

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Study for the Ontario Power Generation (OPG) Orange 1 Test. Ace your exam with multiple choice questions and detailed explanations. Prepare confidently!

Multiple Choice

What is the CNSC's yearly dose limit for the whole body?

Explanation:
The amount a worker can be exposed to in a year for whole-body exposure is limited to protect against long-term radiation effects. For the CNSC, the occupational limit is 50 millisieverts per year. Since 1 sievert equals 100 rem, 50 mSv is 0.05 Sv, which converts to 5 rem. So the maximum allowed annual whole-body dose is 5 rem per year. That’s why 5 rem per year is the correct choice: it matches the regulatory limit in the traditional unit. Values like 0 rem would imply no exposure at all, which isn’t practical for workers performing licensed tasks; 1 rem is well below the limit; 10 rem would exceed the allowed limit.

The amount a worker can be exposed to in a year for whole-body exposure is limited to protect against long-term radiation effects. For the CNSC, the occupational limit is 50 millisieverts per year. Since 1 sievert equals 100 rem, 50 mSv is 0.05 Sv, which converts to 5 rem. So the maximum allowed annual whole-body dose is 5 rem per year.

That’s why 5 rem per year is the correct choice: it matches the regulatory limit in the traditional unit. Values like 0 rem would imply no exposure at all, which isn’t practical for workers performing licensed tasks; 1 rem is well below the limit; 10 rem would exceed the allowed limit.

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