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Radiation Safety Officer Test Questions with Correct Answers
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Radiation Safety Officer Test
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Radiation Safety Officer TestWhat is the energy and matter emitted from an unstable nucleus when it decays? -
answer Nuclear Radiation
How is Nuclear (radioactive) decay defined? - answer An unstable nucleus releasing
energy
Which loses energy each time ionization occurs, has a short range, and cannot
penetrate a sheet of paper? - answer Alpha particle
What is REM a measure of? - answer The biological damage or risk from radiation
energy
What is the special unit used to measure exposure levels? - answer Roentgen
RADIAC instruments that operate on the ionization principle are broken down into three
main categories based on what? - answer Operating voltages
What is the type of exposure that is received over a very short period of time and
generally refers to higher levels of exposure? - answerAcute exposure
What charge does the electron have? - answerNegative
Given that protons are red, neutrons are blue, and electrons are gold, which atom is an
ion? - answerPick the one with a different number of electrons and protons
What is RADIAC equipment used for? - answerTo detect or measure ionizing radiation
What are the two most common operating principles for modern RADIAC instruments -
answerIonization & Scintillation
Which category of biological effects of ionizing radiation can affect an embroyo? -
answerEmbryological
Are these atoms isotopes? - answerYes, but look at the picture dummy
How do RADIAC instruments that use the operating principle of scintillation detect
ionizing radiation? - answerThey measure the light energy released when a special
phosphorescent material is struck by ionizing radiation
, Which types of ionizing radiation are primarily an external hazard? - answerGamma
rays & X-Rays
What is the type of exposure that occurs over an extended period of time and usually
refers to a lower level of exposure? - answerChronic
How much of the parent isotope remains after one half-life of decay? - answer1/2
Which of the following has a -1 (negative one) charge? - answerBeta particle
What is ionization? - answerThe process of a neutral atom acquiring either a positive or
negative charge
What is the special unit for the energy level of ionizing radiation called? - answer
The time it takes a radioactive isotope to transform 50 percent of its atoms by
radioactive decay is called what? - answerHalf-Life
What is an atom composed of? - answerA single central nucleus
How are X-Rays and gamma rays alike? - answer
What is the RAD a measure of? - answerEnergy absorbed by any target from any
source
RADIAC instruments that operate on the ionization principle can be broken down into
which three main categories? - answer
Which category of biological effects of ionizing radiation only affects the exposed
individual? - answerSomatic
In which way do we receive the largest percentage of background radiation? -
answerInhalation of radon gas and its daughter products
Which of the following is true about background radiation? - answerThere are both
natural sources and man-made sources of background radiation
Natural sources of radiation comprises the majority of the total dose received by most
people
Natural sources of radiation include earth sources and cosmic sources
X-rays are a source of background radiation
What average does of radiation does the national council on radiation protection and
measurement estimate Americans receive each year? - answer360 mREM
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