Initial Radiation Safety Training Exam
Questions and Answers
Regarding beam limitation, the size of the x-ray beam should always be restricted to the
________ and collimation should be evident on ________ sides of the image. - Answer-
IR,4
According to the NRC (Nuclear Regulator Commission) the embryo/fetus dose for the
entire pregnancy cannot exceed ____mSv, _______ rem, or _______ mrem. - Answer-
5mSv, 0.5rem, or 500mrem
The ________ is a regulatory agency responsible for protecting both the public and
occupationally exposed individuals from the effects of ionizing radiation. - Answer-NRC
(Nuclear Regulator Commission)
When no threshold dose for radiation exists, the effect is known as _________. -
Answer-Stohastic
_________ is a deterministic effect of ionizing radiation on the eyes. - Answer-Cateracts
Radiation exposure limits pertinent to the protection of radiation workers are known as
________ limits - Answer-dose
The annual effective dose limit for an occupational exposure of ionizing radiation is
________mrem - Answer-5000mrem
The annual effective dose limit for the general public to ionizing radiation is ______rem -
Answer-0.5rem
What is the dose limit for a 21 year old radiation worker? - Answer-210mSv or 21rem
take 10mSv x age (1rem x age)
Pg:157
What are the three Cardinal Principles of Radiation Protection - Answer-Time
Distance
Shielding
If the distance between the individual and the source of radiation is doubled, the
exposure to the individual will be reduced by a factor of _____ - Answer-4
For an individual to reduce exposure by a factor of 25, the distance between the
individual and source of ionizing radiation should ___________. - Answer-Increase by a
factor of 5
AKA 5 squared=25
Questions and Answers
Regarding beam limitation, the size of the x-ray beam should always be restricted to the
________ and collimation should be evident on ________ sides of the image. - Answer-
IR,4
According to the NRC (Nuclear Regulator Commission) the embryo/fetus dose for the
entire pregnancy cannot exceed ____mSv, _______ rem, or _______ mrem. - Answer-
5mSv, 0.5rem, or 500mrem
The ________ is a regulatory agency responsible for protecting both the public and
occupationally exposed individuals from the effects of ionizing radiation. - Answer-NRC
(Nuclear Regulator Commission)
When no threshold dose for radiation exists, the effect is known as _________. -
Answer-Stohastic
_________ is a deterministic effect of ionizing radiation on the eyes. - Answer-Cateracts
Radiation exposure limits pertinent to the protection of radiation workers are known as
________ limits - Answer-dose
The annual effective dose limit for an occupational exposure of ionizing radiation is
________mrem - Answer-5000mrem
The annual effective dose limit for the general public to ionizing radiation is ______rem -
Answer-0.5rem
What is the dose limit for a 21 year old radiation worker? - Answer-210mSv or 21rem
take 10mSv x age (1rem x age)
Pg:157
What are the three Cardinal Principles of Radiation Protection - Answer-Time
Distance
Shielding
If the distance between the individual and the source of radiation is doubled, the
exposure to the individual will be reduced by a factor of _____ - Answer-4
For an individual to reduce exposure by a factor of 25, the distance between the
individual and source of ionizing radiation should ___________. - Answer-Increase by a
factor of 5
AKA 5 squared=25
