Practice Exam #2 13-27 Flashcards
Air can provide a medium for gamma rays to interact and scatter resulting in reflected dose rates or “sky shine” True or False
True
The Tenth Value Layer (TLV) for Co-60 for water is which of the following?
24 inches
Quality Factors are defined by 10CFR20 and are used to determine the dose in rem. True or False?
True
What is the 10CFR20 Quality Factor for gamma radiation?
1
Which of the following cells are the most sensitive to ionizing radiation?
Blood forming cells
Cells that divide at a slower rate are more sensitive to ionizing radiation. True or False?
False
Which of the following can occur when ionizing radiation strikes a cell?
- Radiation can interact with the water in the cell and produce hydrogen peroxide which can damage the cell
- Radiation can interact with the nucleus of the cell and damage the chromosomes
Which of the following factors determines a cells sensitivity to radiation?
High division rate
Which of the following cells are the most sensitive to ionizing radiation?
Sperm
Non-Stochastic effects means the probability of the effect occurring increase with the dose received. True or False?
False
It is assumed that a threshold exist, and if the dose received is below this threshold that no radiation effect is noted, is an example of Non-Stochastic Effect. True or False?
True
What statement best describes chronic radiation exposure?
Typically small exposures over a long period of time
Nausea and vomiting could be a sign of what type of radiation exposure?
Acute
The purpose of the regulations in 10CFR20 is to control the receipt, possessions, use, transfer and disposal of licensed radioactive material in such a manner to limit the dose to individual below the limits set in the standards. True or False?
True
