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Radiation Safety (ammo
66) FINAL questions and
answers (latest update
already graded A+)
The process by which an unstable nucleus releases energy to achieve greater stability is called - answer Nuclear decay What charge does a neutron have? - answer Neutral Ionization is a neutral atom acquiring charge by gaining or losing - answer Electrons Which loses energy each time ionization occurs, has a short range, and cannot penetrate a sheet of paper - answer alpha particle What pathway allows isotopes to enter the body through penetrating the skin - answer Absorption (incorrect) What type of ionizing radiation does not have enough energy to penetrate human skin? - answer Alpha particle Radiation source produced by humans are called - answer Background radiation (incorrect)
Natural radiation comes from what two sources - answer Cosmic and earth The NRC is responsible for - answer Regulating ionizing radiation use in the United States Which army regulation establishes the army radiation safety program? - answer DA Pam, 385- What is the term for the decay rate per mass or volume of the radioactive atom? - answer Specific activity RADIAC, instruments based on the ionization principle - answer Collect and measure the ion pairs created when radiation interacts with matter What type of dosimetry is used to measure the dose receded from sources received outside of the body - answer Scintillation (incorrect) What type of device can be worn on the body to measure an accumulated radiation dose? - answer Ionization dosimeter (incorrect) According to the page from TB 43-0116 shown here which isotope is present in the telescope with the NSN 1240-01-0 74-8959 - answer Thorium - 232 One way to evaluate. The risk from radiation exposure is to - answer Assume that all exposure to radiation is harmful (incorrect) ALARA is a radiation safety principle for - answer ensure that you use common sense measures to limit occupational radiation exposure
Which of the following is a pure substance that cannot be broken down into simpler substances by physical means - answer Element Which loses energy each time ionization occurs, has a range of a few feet in the air, and can penetrate a sheet of paper, but not a thin sheet of aluminum - answer Beta particle Which moves at the speed of light has no electrical charge and is the least ionizing form of nuclear radiation - answer Gamma ray Chronic exposure to radiation - answer Is continuous exposure over an extended period Background radiation plus the amount of occupational radiation is - answer Total exposure CFR title 10 - answer Document standards and rules for handling radioactive materials The three essential components of the radiation safety program are - answer Storing, transporting, and disposal (incorrect) What is the absorbed dose of radiation? - answer RADs RADIAC instruments that operate on the scintillation principle can be divided into which two categories - answer Liquid and solid crystals Scintillation Measuring calculating and assessing the ionizing radiation that a human body absorbs is called - answer Radiation dozimetry
Why would you use the technical bulletin 43-0116 - answer Identify radioactive items in the army inventory ALARA is a radiation safety principal meant to - answer Ensure that you use common sense measures to limit occupational radiation exposure What is identified when evaluating potential hazards - answer Where the hazards are located (incorrect) before the action area can be cleaned first determine - answer if the chain of command has been notified (incorrect) which should be the first step before decontaminating equipment, or facilities - answer determine the extent of the contamination what is radioactive waste? - answer radioactive material that no longer has a particular use what are most atoms composed of? - answer protons neutrons electrons what are the electric rays or particles that are admitted from an unstable nucleus when it decays called? - answer alpha particle (incorrect) which loses energy each time ionization occurs, has a short range, and cannot penetrate a sheet of paper - answer alpha particle how are x-rays and gamma rays alike - answer they add electrons to an atom (incorrect) acute exposure to radiation - answer happens over a short time
why is unauthorized disposal of radioactive material prohibited by law? - answer radioactive materials must be isolated from the general environment to keep from entering human bodies which of the following needs to be double bagged - answer none of the above (incorrect)
