Radiation State Practice Exam

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• In terms of shielding effectiveness, which material is typically less effective than depleted uranium?
• What dose defines a "Radiation Area"?
• Which element of training is critical for individuals working with radioactive materials?
• Which of the following statements is true about dose calculation?
• Which type of radiation is emitted during radioactive decay and has the least penetrating power?
• What term is used to describe the strength of a radiation source?
• Which of the following statements regarding intensity measurements is true?
• Which of the following is NOT a type of ionizing radiation?
• What is the requirement for vehicles carrying only White I or Yellow II labeled packages?
• What is the process called when radiation disintegrates or breaks up?
• Vehicles transporting radioactive materials with a Yellow II label must display what?
• What does a survey of the radiographic exposure device after each exposure involve?
• What is the maximum radiation level allowed from a radioactive source when measuring less than 4 inches from the sealed source?
• In terms of maintaining safety, what is a common practice before any radiographic exposure?
• If one curie of cobalt 60 is compared to one curie of Ir-192, what can be said about their disintegration rates?
• What is the maximum annual permissible accumulated personnel dose allowed by law?
• Why do gamma rays penetrate deeper in matter compared to Alpha or Beta particles?
• What does the term 'half-life' refer to in the context of radioactive substances?
• Which of the following statements is true regarding the Compton effect?
• What is the required measurement range for radiation survey instruments?
• When should you lock the camera after performing radiography?
• What type of shipping container is primarily used for shipping radiography sources?
• What safety equipment is commonly required in places where radiographic work is conducted?
• What must each radiographer or radiographer trainer carry at a job site?
• What is a key advantage of using a pocket dosimeter for radiation monitoring?
• In radiographic equipment, the term 'HVL' refers to what?
• After how many half-lives will a 6 Ci Co-60 source decay to how many curies?
• What advantage does the pocket dosimeter provide to a radiographer?
• When using a 50 Ci source of Ir-192 for radiography from 100' away, how many exposures can be made in one hour?
• What is the required recording frequency for dosimeters?
• Is Louisiana considered an Agreement State with the NRC for regulating radioisotopes?
• How much radiation will a person receive standing 100 feet from a source with a dose rate of 20 mR/hr where four exposures were made lasting three minutes each?
• Which of the following statements is true regarding Alpha particles?
• What role does a dosimeter serve in radiographic practice?
• What is the maximum allowed source strength of Ir-192 for offshore platform or lay barge radiography?
• A posted sign that reads "Caution - High Radiation Area" indicates what possible radiation dose per hour?
• What necessary information must be included on the labels of radiographic equipment?
• What is the dose rate when recalculating for a distance of 200 feet from the original source used in a previous calculation?
• What must vehicles transporting radioactive material with a Yellow II label display?
• What is defined as an area where access is controlled to protect individuals from radiation exposure?
• Cameras that hold 100 Ci of Ir-192 must be which kind of shipping container?
• What are three basic means for controlling radiation exposures?
• Ionizing radiation is any radiation that creates:
• What is the only difference between Gamma rays and X-rays?
• What formula is used to determine the intensity of radiation from a source?
• What is the acceptable range for a dosimeter to function properly?
• A source that emits 05 mR/hr and nothing at 3 feet would require what type of label?
• What term is used to describe a useful characteristic of a radioactive isotope for medical therapies?
• What is a primary cause of overexposures for radiographers?
• How does the dose limit for individuals under 18 years differ from that of adults in terms of accumulated exposure?
• What term refers to the thickness of a material that reduces the amount of radiation to one-half its initial intensity?
• What aspect of radiography reflects time, distance, and shielding considerations?
• What does the dose rate at one meter from a shipping container containing radioactive material indicate?
• Which federal department regulates the use and possession of radioactive isotopes?
• Which safety measure is critical for individuals working in radiation environments?
• How many disintegrations per second does one curie of radioactive material represent?
• What is the term for the time it takes for half of the unstable atoms to decay?
• What are the effects of radiation on reproductive cells called?
• Who is primarily responsible for ensuring safety measures are followed when handling radioactive sources?
• How frequently should sealed sources be leak tested?
• What type of radiation is typically used in medical imaging to deliver images of internal body structures?
• What is the maximum allowable occupational dose rate per year?
• What is a lock-out survey?
• Pocket dosimeters should be recharged at what frequency?
• What is the source assembly commonly known as in radiation terminology?
• If a person receives a dose of 60 mrems after 15 minutes in a radiation field, what is the dose rate?
• What additional requirements might be necessary for shipping radioactive materials during an emergency?
• Where can radiation safety requirements and licensing procedures for Industrial Radiography be found?
• What is the half-life of Cesium-137?
• According to the inverse square law, if a source is moved twice as far away, how is the intensity affected?
• What is the half-life of Iridium-192?
• What is the maximum permissible radiation dose from external sources in unrestricted areas?
• What does "rems" measure?
• Does using shielding between yourself and the radiation source increase your dose?
• What is the term used to allow a company with a radioactive material license in one state to work in another state?
• Radiation is classified as a form of what?
• What is the term for the time it takes for half of a quantity of a radioactive substance to decay?
• In terms of distance, how does a person reduce exposure from a radioactive source?
• How is the type of shipping label determined for a package containing radioactive material?
• What is the process of spreading radioactive materials called?
• How does increasing the distance from a radioactive source affect exposure rate?
• Which formula is used to find the permissible accumulated dose for an individual?
• Which description fits gamma rays accurately?
• What is created when an electron is knocked out of its orbit by a gamma ray?
• What factor influences the decision on the thickness of shielding material required?
• What is the allowable whole body radiation dose limit in restricted areas per year?
• Which of the following is necessary for safe storage of radioactive sources?
• What occurs when a neutron collides with the nucleus of an atom?
• How long does it take to receive a dose of 1000 rems from a source containing 100 Ci of Ir-192?
• Which of the following best describes a "collimator" used during radiography?
• What will the radiation dose rate be for a 100 Ci Ir-192 source 25 feet from the source using a tungsten collimator with a HVL of 4?
• Which document must a radiographer check before removing a camera with a radioactive source?
• Which method of reducing radiation exposure is most effective for a radiography technician at a job site?
• Which measurement relates directly to the risk of radiation exposure?
• Why is it important to restrict exposure time during radiography?
• An individual under 18 years of age may not receive what percentage of radiation dose in any one calendar quarter?
• What does MREM stand for in radiation terminology?
• What factor differentiates alpha particles from beta particles?
• If a test reveals leakage or contamination of RAM from a sealed source, what is the maximum amount allowed?
• What unit measures the rate of disintegration of radioactive material?
• Which material is known to provide the greatest degree of shielding from radioactivity?
• What is referred to as acute radiation exposure?
• If you increase your distance from a radiation source, what happens to your radiation exposure?
• How frequently must a leak test be performed on radioactive material?
• Radiation energy is usually expressed in which of the following units?
• What law describes the relationship between dose rate and distance from a source?
• Which type of ionizing radiation is known for its ability to cause ionization?
• If using a 100 Ci Ir-192 source, what will the dose rate be at a distance of 100 feet from the source?
• What safety equipment is essential for workers handling radioactive sources?
• Which of the following are basic ways to lower radiation dose when working with radiography sources?
• Why is it necessary to leak test sealed sources regularly?
• Which of the following best describes the term half-value layer?
• Elements in the Chart of Elements are classified by what criterion?
• During radiation exposure monitoring, what unit is primarily used to measure exposure rates?
• How often must a physical inventory of sealed sources be conducted?
• The dose a radiographer can receive in one year is?
• Can old depleted radiography sources be thrown away with regular trash?
• What is the most effective method for minimizing excessive radiation exposure in an area?
• What are the two most commonly used isotopes for radiography?
• What is the term for the thickness of material that reduces the radiation to nine-tenths of its initial intensity?
• Radiographic sources are classified under which type of packing?
• When should a radiographer conduct inspection and maintenance of equipment?
• If a film or TLD badge is lost or damaged, what should the individual do?
• What term describes the time required for half of the atoms in a radioactive material to disintegrate?
• What unit is used to measure radiation exposure?
• The film badge or TLD badge primarily provides what type of documentation?
• One curie can also be referred to as:
• What is the primary purpose of calibrating a survey meter?
• What is the primary purpose of using shielding in radiation protection?
• Which isotope is commonly used in radiation therapy and has a half-life of 5.3 years?
• How often must a sealed source be tested for leaks?
• What type of radiation is primarily of concern during industrial radiography?
• In shipping papers for sealed radiography sources, how is radioactive material classified?
• Which of the following is a common measurement of radiation dose in humans?
• What is the recommended action if a radiation survey instrument reads improperly?
• According to Texas Regulations, what is the required operating range of a pocket dosimeter for industrial radiographers?
• What is the term for a state receiving authority from the NRC to regulate activities involving radioactive materials?
• A radioactive Yellow II label is applied to packages with a maximum surface dose rate of:
• If an individual's pocket dosimeter is discharged beyond its range, what should they do?
• What would be the dose rate for 1 hour if an individual receives 8 mR/hr in 2 minutes?
• Who is responsible for the daily check of the equipment before work starts?
• Where is the earliest detection of radiation damage typically observed?
• Which type of detector is most commonly used in industrial radiography survey meters?
• How many curies of Ir-192 are indicated if the dose rate from the source is 320 mR/hr at 40 feet?
• Which of the following is NOT a type of ionizing radiation?
• Where should film badges be worn for optimal effectiveness?
• At a distance of one foot from one curie of a radioisotope, what determines the exposure dose rate?
• What information must radioactive material records show?
• Which authority regulates radiography companies doing work in a Non-agreement State?
• When considering radiation safety, what is the function of the tenth value layer?
• What is the primary role of training in radiation safety?
• Using Co-60, if the radiation intensity at a certain distance is 600 mR/hr, what thickness of lead is required to reduce this intensity to 75 mR/hr?
• Which of the following are the three basic ways to lower your radiation dose when working with radiography?
• Which of the following are considered the fundamental building blocks of atoms?
• Why is it crucial to monitor radiation levels regularly in a radiography setting?
• How often must survey meters be calibrated and have tags or labels attached?
• What equipment must a radiographer have during radiography operations?
• What does the activity of a radiation source refer to?
• What is the term used for the outer package that provides additional shipping protection for a Type B container?
• What is the maximum radiation intensity allowed on the outside surface of a vehicle transporting RAM used in radiography?
• What is an essential measure to limit radiation exposure during industrial radiography?
• What phenomenon is specifically caused by gamma rays?
• At what dose rate should a rate alarm be set during industrial radiography?
• What is the reason for keeping a daily record of dosimeter readings?
• If an individual's pocket dosimeter is off scale, what action should they take?
• What is the half-life of Cobalt-60?
• What is a typical application of lead thickness in radiation safety?
• At what mR/hr level should "Caution Radiation Area" signs be displayed while making a radiograph?
• What is the purpose of a collimator in radiography?
• What term describes radioactive particles that contaminate surfaces where they are not supposed to be?
• How often must a survey meter be calibrated?
• In the context of radiation safety, what does the acronym 'mR/hr' stand for?
• In industrial radiography, what is the principal hazard?
• When must a radiation survey instrument be checked for proper operation?
• When determining the safety of exposure to radiation, what factor is crucial for assessing risk?
• Each radiographic exposure device must have a label that includes which of the following?
• What is the maintenance schedule for radiographic equipment?
• Which radiation type is identified as the most penetrating in industrial X-rays?
• Which radiation unit is used to measure exposure in this context?
• What can be said about the safety of handling old radiography sources?
• If the radiation intensity is 50 R/hr, how many half-value layers are needed to reduce it to 5 R/hr?
• What component of radiation safety must be ensured when operating radiographic equipment?
• What equation is used to determine the dose rate at varying distances from a radiation source?