Q72 — Locked High Radiation Area Posting
G 2.3.12 (3.2)
Given:
• An Equipment Operator is needed to place a Cation Bed Demineralizer in service.
• Radiological readings in the area are 1100 mR/hr.
In accordance with RP-AA-460, Controls for High and Very High Radiation Areas, which ONE of the following completes both statements?
1. The radiological posting requirement for this area is _(1)_.
2. Personnel entering this area will require _(2)_ RP coverage.
• An Equipment Operator is needed to place a Cation Bed Demineralizer in service.
• Radiological readings in the area are 1100 mR/hr.
In accordance with RP-AA-460, Controls for High and Very High Radiation Areas, which ONE of the following completes both statements?
1. The radiological posting requirement for this area is _(1)_.
2. Personnel entering this area will require _(2)_ RP coverage.
A. 1) High Radiation Area
2) continuous
2) continuous
B. 1) High Radiation Area
2) periodic
2) periodic
C. 1) Locked High Radiation Area
2) periodic
2) periodic
D. 1) Locked High Radiation Area
2) continuous
2) continuous
▶ Show Answer & Explanation
✓ D. Correct. IAW RP-AA-460 step 4.2, LHRA is defined as dose rates > 1000 mR/hr @ 30 cm. Step 4.2.5 states access into this area requires continuous surveillance/coverage.
✗ A. Incorrect. Part 1 is incorrect. Plausible if the operator believes that greater than 1000 mR/hr is the posting requirement for a High Radiation Area (HRA). Part 2 is correct.
✗ B. Incorrect. Part 1 is incorrect. Plausible if the operator believes that greater than 1000 mR/hr is the posting requirement for a High Radiation Area (HRA). Part 2 is incorrect. Plausible because the operator may believe the posting is a HRA and the RP coverage would only require periodic surveillance.
✗ C. Incorrect. Part 1 is correct. Part 2 is incorrect. Plausible if the operator believes that the RP coverage for the area is periodic and not continuous.
Ref: RP-AA-460 (R20) & RP-AA-376 (R10) | LO: NOS05RADCON-06, Objective 4 | Source: New | Cognitive: Fundamental/Memory
Connections
- Related admin: RP-AA-460 — Controls for High and Very High Radiation Areas
- Related exam: 2022 NRC Written Exam