NMTCB RADIATION SAFETY EXAM
QUESTIONS AND ANSWERS 100%
VERIFIED
'White 1 package - ANSWER-Surface <0.5 mr/hr.
1 meter = bkg
Yellow II - ANSWER-Surface < 50 mr/hr
1 meter = 1 mr/hr
Yellow III - ANSWER-Surface < 200
1 meter = 10 mr/hr
Type A package - ANSWER-Adequate for normal transport.
1,2,3
Type B - ANSWER-Used for large quantities of radioactive material
Caution radioactive materials - ANSWER-Where radiation is used or stored.
Usually entrance of labs.
Caution Radiation Area - ANSWER-More than 5 rem (.05 mSv) in 1 hr at 30 cm from
source
Caution High Radiation Area - ANSWER-More than 100 rem (1 mSv) in 1 hr at 30 cm
from source
Usually where Radiation therapy is performed.
Grave Danger Very High Radiation Area. - ANSWER-500 Rad in 1 hr
Annual radiation exposure in rems per year for a member of the general public is -
ANSWER-0.1
Microspheres therapy uses - ANSWER-Yttrium-90
Written directive for micro spheres must include - ANSWER-Manufacturer
Surgical probe - ANSWER-Used to locate radioactive seeds
Sodium iodide to locate low gamma
, Records for all radioactive waste must be kept indefinitely except - ANSWER-Decay in
storage
Linear accelerator(LINAC) is a device used for external beam radiation emitting -
ANSWER-High energy X-rays
Unrestricted Area - ANSWER-Person could not be exposed to in excess to 2 mr/hr
Restricted area - ANSWER-Controlled access area for the protection of individuals from
exposure to radiation.
Posting exemptions - ANSWER-Licensee is not required to post a room containing RAM
for 8 hrs or less. Materials must be constantly attended.
Surveys of individual doses, bioassay' and release of radioactive effluents - ANSWER-
Licensee shal maintain these records until termination of the license.
Hazmat - ANSWER-Any substance or material that is capable of posing an
unreasonable risk to health, safety and property when transported in commerce.
Hazmat training - ANSWER-Within 90 days of employment and every 3 years.
Transportation index (TI) - ANSWER-Maximum radiation level in Millirem hr at 1 meter.
Must be rounded up the next tenth.
UN2908 - ANSWER-Empty class 7.
UN 2910 - ANSWER-Limited quantity of radioactive material
Less than 0.5 mr/ hr
UN2915 - ANSWER-Used for: white 1, yellow,2 and yellow 3
Yellow III requirement - ANSWER-Driver must have hazmat cdl license and vehicle
must be placarded
Wipe test - ANSWER-Legal limit = 6,600dpm/300cm^2 or 22dpm/1cm^2
Returned containers - ANSWER--no removable contamination
-surface reading <0.5 mr/hr
Syringes with blood must be marked as biohazard
To convert mci to GBq - ANSWER-1 mci = .037GBq
27 mci = 1 GBq
International Air Transport Association (IATA) dangerous goods regulations - ANSWER-
Anyone preparing a shipment by air must be trained in IATA regulations.
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