NMTCB Radiation Safety Exam COURSE
QUESTIONS AND ANSWERS VERIFIED GRADED
A+ COMPLETE REVIEW 2026 2027
White I package
Surface <0.5 mR/hr
1 meter = bkg
Yellow II package
Surface .5 - 50 mR/hr
TI, 1 meter 0.1 - 1 mr/hr
Yellow III package
Surface 50 - 200 mR/hr
TI, 1 meter 1 - 10 mR/hr
Type A package
Adequate for normal transport.
Types 1, 2 and 3
Type B
Used for large quantities of radioactive material
Caution radioactive materials
Where radioactive materials are used or stored. Usually entrance of labs.
,Caution Radiation Area
More than 5 mrem (.05 mSv) in 1 hr at 30 cm from source
Caution High Radiation Area
More than 100 mrem (1 mSv) in 1 hr at 30 cm from source.
Usually where Radiation therapy is performed.
Grave Danger Very High Radiation Area
> 500 Rad in 1 hr
Unrestricted Area
An area in which a person could not be exposed to radiation levels in
excess of 2 mrem in any one hour from external sources
Restricted area
Controlled access area for the protection of individuals from exposure to
radiation.
Posting exemptions
Licensee is not required to post a room containing RAM for 8 hrs or less.
Materials must be constantly attended.
How long must one keep surveys of individual doses, bioassays and
release of radioactive effluents?
Licensee shall maintain these records until termination of the license.
Hazardous Materials
Any substance or material that is capable of posing an unreasonable risk
to health, safety and property when transported in commerce.
Hazmat training frequency
, Within 90 days of employment and every 3 years.
Transportation index (TI)
Maximum radiation level in mrem/hr at 1 meter. Must be rounded up the
next tenth.
UN2908
Empty excepted package (previously used to hold radioactive materials).
UN 2910
Excepted package. Limited quantity of radioactive material. Less than 0.5
mR/hr
UN2915
Used for: white 1, yellow,2 and yellow 3
Yellow III requirement
Driver must have hazmat cdl license and vehicle must be placarded
Wipe test
Legal limit = 6,600dpm/300cm^2 or 22dpm/1cm^2
Returned containers
-no removable contamination
-surface reading <0.5 mr/hr
Syringes with blood must be marked as biohazard
To convert mci to GBq
1 mci = .037GBq
27 mci = 1 GBq
QUESTIONS AND ANSWERS VERIFIED GRADED
A+ COMPLETE REVIEW 2026 2027
White I package
Surface <0.5 mR/hr
1 meter = bkg
Yellow II package
Surface .5 - 50 mR/hr
TI, 1 meter 0.1 - 1 mr/hr
Yellow III package
Surface 50 - 200 mR/hr
TI, 1 meter 1 - 10 mR/hr
Type A package
Adequate for normal transport.
Types 1, 2 and 3
Type B
Used for large quantities of radioactive material
Caution radioactive materials
Where radioactive materials are used or stored. Usually entrance of labs.
,Caution Radiation Area
More than 5 mrem (.05 mSv) in 1 hr at 30 cm from source
Caution High Radiation Area
More than 100 mrem (1 mSv) in 1 hr at 30 cm from source.
Usually where Radiation therapy is performed.
Grave Danger Very High Radiation Area
> 500 Rad in 1 hr
Unrestricted Area
An area in which a person could not be exposed to radiation levels in
excess of 2 mrem in any one hour from external sources
Restricted area
Controlled access area for the protection of individuals from exposure to
radiation.
Posting exemptions
Licensee is not required to post a room containing RAM for 8 hrs or less.
Materials must be constantly attended.
How long must one keep surveys of individual doses, bioassays and
release of radioactive effluents?
Licensee shall maintain these records until termination of the license.
Hazardous Materials
Any substance or material that is capable of posing an unreasonable risk
to health, safety and property when transported in commerce.
Hazmat training frequency
, Within 90 days of employment and every 3 years.
Transportation index (TI)
Maximum radiation level in mrem/hr at 1 meter. Must be rounded up the
next tenth.
UN2908
Empty excepted package (previously used to hold radioactive materials).
UN 2910
Excepted package. Limited quantity of radioactive material. Less than 0.5
mR/hr
UN2915
Used for: white 1, yellow,2 and yellow 3
Yellow III requirement
Driver must have hazmat cdl license and vehicle must be placarded
Wipe test
Legal limit = 6,600dpm/300cm^2 or 22dpm/1cm^2
Returned containers
-no removable contamination
-surface reading <0.5 mr/hr
Syringes with blood must be marked as biohazard
To convert mci to GBq
1 mci = .037GBq
27 mci = 1 GBq
