Q45 — Emergency Dose Limits
G2.3.4 (3.9)
Given:
• John Doe has received 1000 mrem routine cumulative TEDE this year
• A SITE AREA EMERGENCY has just been declared
• John Doe is preparing to go into an area to mitigate the casualty
o The area has a general dose rate of 1000 mrem / hour
In accordance with RP-AA-203 (Exposure Control and Authorization) and NC.EP-EP.ZZ-0304 (OPERATIONAL SUPPORT CENTER (OSC) RADIATION PROTECTION RESPONSE), which ONE of the following completes the statement below?
John Doe can work in the area for a MAXIMUM of ___ minutes without exceeding his ADMINISTRATIVE dose limits for the year.
• John Doe has received 1000 mrem routine cumulative TEDE this year
• A SITE AREA EMERGENCY has just been declared
• John Doe is preparing to go into an area to mitigate the casualty
o The area has a general dose rate of 1000 mrem / hour
In accordance with RP-AA-203 (Exposure Control and Authorization) and NC.EP-EP.ZZ-0304 (OPERATIONAL SUPPORT CENTER (OSC) RADIATION PROTECTION RESPONSE), which ONE of the following completes the statement below?
John Doe can work in the area for a MAXIMUM of ___ minutes without exceeding his ADMINISTRATIVE dose limits for the year.
A. 60
B. 180
C. 210
D. 240
▶ Show Answer & Explanation
✓ C. Correct. IAW RP-AA-203, the Administrative Dose Limit for routine work is 2000 mrem TEDE. When the Site Area Emergency is declared, then IAW NC.EP-EP.ZZ-0304, the administrative dose limit is automatically raised to 4500 mrem. Consequently, the worker can work (4500 - 1000) / 1000 = 3.5 hours or 210 minutes in the area.
✗ A. 60 Minutes would be the stay time if the candidate used the normal administrative limit of 2000 mrem.
✗ B. 180 Minutes would be the stay time if the candidate incorrectly concluded that the administrative dose limit is automatically raised to 4000 mrem.
✗ D. 240 Minutes would be the stay time if the candidate incorrectly concluded that the administrative dose limit is automatically raised to 5000 mrem.
Ref: RP-AA-203, NC.EP-EP.ZZ-0304 | LO: NOS05RADCON-05 (RADIATION PROTECTION PROGRAM) | Source: New | Cognitive: Higher
Connections
- Related procedures: RP-AA-203 — Exposure Control and Authorization, NC.EP-EP.ZZ-0304 — OSC Radiation Protection Response
- Related exam: 2019 NRC Written Exam