NMTCB Radiation Safety Exam Questions and Answers

NMTCB Radiation Safety Exa iv iv iv



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1. White I package: Surface <0.5 mR iv iv iv iv iv



/hr 1 meter = bkg
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2. Yellow II package: Surface .5 - iv iv iv iv iv



50 mR/hr TI, 1 meter 0.1 - 1 mr/hr
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3. Yellow III package: Surface 50 - iv iv iv iv iv



200 mR/hr TI, 1 meter 1 - 10 mR/hr
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4. Type A package: Adequate for normal transp iv iv iv iv iv iv



ort. Types 1, 2 and 3
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5. Type B: Used for large quantities of radioactive material
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6. Caution radioactive materials: Where radioactive materials are used or stored. Usually entra
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nce of iv



labs.
7. Caution Radiation Area: More than 5 mrem (.05 mSv) in 1 hr at 30 cm from source
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8. Caution High Radiation Area: More than 100 mrem (1 mSv) in 1 hr at 30 cm from source.
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Usually where Radiation therapy is performed.
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9. Grave Danger Very High Radiation Area: > 500 Rad in 1 hr iv iv iv iv iv iv iv iv iv iv iv




10. Unrestricted Area: An area in which a person could not be exposed to radiation levels in ex iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv




cess of 2 iv iv



mrem in any one hour from external sources
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11. Restricted area: Controlled access area for the protection of individuals from exposure to ra iv iv iv iv iv iv iv iv iv iv iv iv iv




diation.
12. Posting exemptions: Licensee is not required to post a room containing RAM for 8 hrs or le iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv




ss. Materials iv



must be constantly attended.
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13. How long must one keep surveys of individual doses, bioassays and re iv iv iv iv iv iv iv iv iv iv iv


lease of radioactive effluents?: Licensee shall maintain these records until termination of the lic
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ense.
14. Hazardous Materials: Any substance or material that is capable of posing an unreasonab iv iv iv iv iv iv iv iv iv iv iv iv




le risk to iv iv



health, safety and property when transported in commerce.
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15. Hazmat training frequency: Within 90 days of employment and every 3 years. iv iv iv iv iv iv iv iv iv iv iv




16. Transportation index (TI): Maximum radiation level in mrem/ iv iv iv iv iv iv iv




hr at 1 meter. Must be rounded up the
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, NMTCB Radiation Safety Exa
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17. UN2908: Empty excepted package (previously used to hold radioactive materials).
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18. UN 2910: Excepted package. Limited quantity of radioactive material. Less than 0.5 mR/hr
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19. UN2915: Used for: white 1, yellow,2 and yellow 3
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20. Yellow III requirement: Driver must have hazmat cdl license and vehicle must be placar
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ded
21. Wipe test: Legal limit = 6,600dpm/300cm^2 or 22dpm/1cm^2
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