DOE CORE (RCT) PRACTICE EXAM
BRAND NEW OFFICIAL QUESTIONS
WITH ANSWERS.
1. A mobilizing agent increases the elimination rate of radioactive
materials from the body by: - correct answer -Increasing the
natural turnover process, thus releasing incorporated
radioactive atoms
2. The effective half-life is always ____ the biological half-life -
correct answer -Less than
3. How does a blocking agent increase the elimination rate of
radioactive material from the body? - correct answer -By
saturating the metabolic process in a specific tissue w/ the
stable element
4. The biological half-life is always ____ the radiological half-life -
correct answer -Independent of
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5. The effective half-life is always ___ the radiological half-life -
correct answer -Less than
6. A chelating agent increases the elimination rate of radioactive
materials from the body by: - correct answer -Increasing the
solubility of insoluble compounds
7. The component in a photomultiplier tube that converts the light
output to photoelectrons is called - correct answer -
Photocathode
8. In the operation of an ion chamber the signal produced by ion
pairs in the chamber - correct answer -Stays the same as the
applied voltage is increased or decreased in the ion chamber
region
9. The main advantage of semiconductor detectors for
spectroscopy systems is their higher - correct answer -
Resolution