Supervisor and Operator Permit (Radiography) Practice Exam

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• What processing variable contributes most to poor image contrast in radiography?
• X-ray examination of the abdominal region contributes to what percentage of the GSD?
• What wattage range is typically recommended for bulbs in a darkroom?
• During X-ray film development, what happens to the grains in the emulsion?
• How often is a retake analysis recommended?
• When a film badge shows over-exposure, how soon must the findings be reported to the RHB?
• What is a critical component of evaluating exposure reproducibility?
• What is the intensification factor in radiography?
• Which of the following occurs minutes to hours after exposure to ionizing radiation?
• What is an important part of any QA program to be done every three months?
• Which processes occur within fractions of a second?
• Which of the following is true about the secondary protective barrier?
• In pediatric radiography, which grid type should be avoided to ensure patient safety?
• Which factor does NOT influence the patient radiation dose directly?
• What effect does smoking have on photographic film?
• Which method is NOT recommended for minimizing retakes in X-ray procedures?
• Which two are the primary required pieces of equipment for personnel monitoring?
• How should radiographic techniques be adjusted for very dense body parts?
• What is the maximum permissible aluminum equivalent of the table top or front panel of a vertical cassette holder at 100 kVp?
• When using film alone without intensifying screens, what is the typical increase in X-rays generated?
• Which factors influence the quantity of scatter radiation?
• What three items should be monitored by the Processor Quality Control program?
• Diagnostic x-ray beams are referred to as heterogeneous due to which interaction?
• Under what conditions should gonads be shielded during radiography?
• What do developer solutions or cigarette ashes produce on radiographs?
• Which items are required if the operator must remain in the room during patient CT scanning?
• Which of the following is a primary factor in determining the biological effects of radiation?
• What does the Half-Value Layer (HVL) measure in radiation?
• Which units are used to measure dose equivalent?
• What is the acceptable temperature variation for daily measurements of developer temperature?
• Changing from medium-speed calcium tungstate screens to high rare-earth screens will reduce the exposure settings by what percentage?
• What are common issues in screen/film/cassette speed matching?
• Which of the following is NOT a recommended method for measuring film washing time?
• What is the primary process through which x-rays are produced?
• What processing error causes films to look milky and slowly darken over time?
• Approximately what percentage of retakes are due to motion (respiratory or other)?
• What is a critical factor for ensuring safety in areas where x-ray equipment is used?
• Which basic principles can be used to reduce radiation dose?
• What is a major goal of using gonad shields during radiographic procedures?
• What is a potential consequence of poor collimation in CT imaging?
• What is the purpose of standardized quality control tests?
• Which phenomenon is most commonly seen in growing tissue exposed to radiation?
• According to the inverse square law, which statement is true?
• As the energy of the x-ray beam increases, what typically happens to the penetrating power?
• What type of radiation is primarily responsible for the ionization of atoms during X-ray procedures?
• What are the potential effects on tissue from high doses of radiation during examinations?
• What is the major issue typically encountered in most darkrooms?
• Which method is used to improve the quality of x-ray images during exposure?
• Which radiation-induced disease can be differentiated from non-radiation induced versions?
• What type of inspection is crucial to conduct periodically in the darkroom?
• What is the primary focus of the Half-Value Layer (HVL) in radiography?
• What level of deviation in density is acceptable for patient equivalent phantom films?
• What term describes the dose of radiation delivered to the skin during an X-ray examination?
• What is the ideal humidity level for storing finished radiographs?
• At what temperature is it suggested to store photographic material?
• How long must records or written logs of maintenance and/or repairs of x-ray equipment be kept?
• A radiation worker not wearing protective apparel spent 10 minutes in an area with an exposure rate of 100 mrem/hour. How much radiation did he receive?
• What can x-ray personnel NOT directly influence during daily operations?
• Which of the following strategies is ineffective when aiming to minimize retakes?
• What is the useful optical density (O.D) range for radiographs?
• What is the primary process through which x-rays are produced?
• What happens to the intensity of radiation when the source is moved further from an object?
• How often should the processor stand-by units be visually inspected?
• Which electron interaction with the anode causes the x-ray beam to be polygenergetic?
• What happens to film when humidity drops below 40%?
• Why must darkroom film fogging be eliminated?
• What is essential when calibrating X-ray equipment for consistent results?
• Which type of radiation shielding is most effective for high-energy X-rays?
• What is the usual range of diagnostic x-ray tube anode angles?
• The primary function of a dosimeter is to?
• Which of the following are types of fog in radiography?
• What must a parent or individual holding a patient do during a radiographic examination?
• What is the recommended HVL for x-ray tubes operating above 70 kVp?
• Which of the following best describes the purpose of collimation?
• Which type of radiography specifically requires a target-to-film distance of 72 inches?
• Which of the following is true about daily processor checks?
• What is the primary purpose of a lead apron?
• What effect does a decrease in x-ray tube target angle have on the focal spot?
• Which of the following is considered an X-ray accessory?
• What does the term GSD stand for in radiography?
• Which type of filtration includes the x-ray tube and its housing?
• Which items should be checked daily for Quality Control in a radiographic processor?
• What term describes the reduction in intensity of an X-ray beam due to absorption or scattering?
• What includes both leakage and scattered radiation?
• What does the term SCREEN LAG refer to in radiography?
• What is the duration for which records of dose equivalent received by individuals must be kept?
• The optical density resulting from an unexposed film processed through the fixer, washer, and dryer without passing through the developer is termed what?
• QA and QC records must include which of the following?
• Gonad dose variations in X-ray examinations are primarily due to which of the following factors?
• Which of the following factors influence the biological effects of radiation?
• Which factor does NOT affect the patient dose?
• Absorption of x-ray photons in a patient's body is primarily due to which interaction?
• Exposure limits are particularly important in which of the following settings?
• Which of the following is considered a genetic effect of ionizing radiation?
• Which x-ray production method involves knocking out inner shell electrons of tungsten?
• For archival storage, what is the maximum retained thiosulfate in fixer solution?
• What must be ensured for a phototimer to function properly?
• Where should a personnel monitor ideally be worn?
• What role does filtration play in radiography?
• How often should the screen/film contact procedure be performed?
• When should lead aprons be used in radiography?
• When a beverage spills on a cassette, which component must be replaced?
• What is the effect of humidity dropping below 40% on radiographic films?
• Which term describes health effects that vary in severity with dose and have a believed threshold?
• If the gonads are properly shielded with 0.5m lead equivalent, approximately what % of the incident primary beam radiation dose can the gonads still receive from internal scatter?
• What is a primary cost-saving benefit of a Quality Assurance (QA) program?
• Which of the following are short-term stepwise effects of radiation exposure?
• Which factors influence patient radiation dose in radiography?
• What is the primary purpose of using a collimator in radiography?
• Which examinations are included when considering radiation exposure to embryo/fetus?
• What protective equipment must a person holding a patient during an X-ray wear?
• A family member received what amount of radiation if they stood in a hallway with an exposure rate of 0.5 mrem per hour for 20 minutes?
• Which projection WOULD take advantage of the so-called "heel effect" if the cathode was toward the head?
• Which control on the x-ray machine affects the quality of the X-rays produced?
• If operators must remain in the room during CT scanning, what should they wear?
• In what manner does a larger field size impact radiation scattering?
• Which of the following factors influence the amount of image distortion?
• Which of the following can produce film fog?
• If a radiation worker receives a dose of 10 Sv, how many rads did they receive?
• What is the quality factor (Q) for X, gamma, or beta radiation?
• For how long must records of dose equivalent received by occupational workers be maintained?
• What type of unsharpness does a warped cassette produce in radiographs?
• What is the term for the part of the X-ray beam that has passed through the patient and reaches the film?
• If X-ray intensity is 100 mrem/hr at 1 meter FFD, what is it at 4 meters?
• Which method can be used to control film darkening and contrast effectively?
• In radiation safety, what is stray radiation typically considered?
• Which devices have the disadvantage of not providing a permanent record of radiation exposure?
• What assumptions underpin the ALARA philosophy in radiation safety?
• What tool is used to test film fixer retention?
• Long wavelength X-rays primarily increase what?
• Which of the following are true regarding film handling?
• What is the total developer immersion time for a 90-second processor?
• What are the advantages of high kVp technique?
• Is it ever justified to interrupt pregnancy due to radiation dose from a diagnostic X-ray examination?
• What is the nature of radiation-induced mitotic delay in the life cycle of a cell?
• In radiography, what does mA primarily control?
• What effect does the improper loading of cassettes have?
• What is the name of the process that reduces the intensity of an X-ray beam by absorption or scattering?
• What accounts for most of the repeated radiographs (retakes/repeats) today?
• How is film washing time typically measured?
• Which factor does NOT affect the quantity of radiation scattering?
• What is the function of a grid?
• Which of the following affects the penetration power of x-rays?
• Which tool is used for precise measurement of radiation exposure?
• With rare-earth intensifying screens, X-ray films are sensitive to which light spectrum?
• What characterizes an X-ray generator designed for superior image quality?
• What is the test frequency for filtration HVL?
• What is the name of the input-output curve used to express the change in density with respect to the change in radiation dose of the X-ray film?
• A barrier used to attenuate stray radiation is termed?
• What does the term ALARA stand for?
• Which of the following is included in the factors affecting scatter radiation production in radiographs?
• Which of the following accurately describes the relationship between radiation dose and exposure duration?
• What happens to the nominal focal spot size as the x-ray tube target decreases?
• What is the primary limitation of using a TLD in radiography?
• Which of the following tissues have approximately the same density?
• What type of cancer is at an increased risk in children if the expectant mother is exposed to significant radiation?
• What is the occupational dose equivalent limit for individuals under 18 years of age?
• What is the primary purpose of a filter in radiography?
• How frequently should the FACILITY PROCEDURES Manual be reviewed and updated?
• What impact does increasing the SID (Source to Image Distance) have on radiographic images?
• What is an effect of increasing the distance from an X-ray source on radiation dose?
• What is defined as the optical density of a film due to its base density plus the developer's action on unexposed silver halide crystals?
• What is the main reason for wearing protective apparel during radiation exposure?
• An area, outside of a restricted area, where access can be limited by the licensee for any reason is defined as?
• What critical factor can lead to a reduction in image contrast in X-ray films?
• In which situation would a radiographer increase exposure time?
• Compared to a patient with pneumonia, an emphysematous patient will need __________ exposure.
• What is the effect of all types of fog on the radiographic image?
• What is a performance criterion for screen/film contact testing?
• X-ray examinations of the abdominal region account for 25% of all radiography but contribute over what percentage of the GSD?
• What are the reasons why radiation doses are not distributed uniformly throughout the body in diagnostic radiology?
• How much of a reduction in radiation dose can a patient receive from using rare-earth screens compared to calcium tungstate screens?
• What is the average accuracy of a thermoluminescent dosimeter?
• What are the performance criteria for base plus fog in Processor Quality Control?
• Which are considered long-term stepwise effects of radiation exposure?
• What is the recommended frequency for checking the replenishment rate of developer and fixer?
• What device should be used to read processed sensitometric strips?
• What is the term for the time lag between initial exposure to ionizing radiation and the first detectable clinical effects?
• What will be the result of irradiation of the bone marrow?
• What are destructive changes in body molecules directly by radiation termed?
• Can blue-light-emitting screens be used with green-sensitive film?
• Limited permit X-ray technicians are excluded from which of the following?
• Which type of thermometer should never be used due to contamination risks?
• Which of the following projections WOULD take advantage of the so-called heel effect if the cathode was toward the head?
• What is the main purpose of a dosimeter for operators during radiographic procedures?
• What is the recommended HVL for x-ray tubes operating below 50 kVP?
• What can cause static marks on radiographic films?
• What is the average accuracy range of a film badge?
• What is the purpose of a grid in radiography?
• Approximately what percentage of cases will require minor adjustments to a radiographic technique chart?
• What is the purpose of a safelight in the darkroom?
• Which of the following are cellular effects from exposure to ionizing radiation?
• Which X-ray interaction with matter predominates in soft tissue above 80 kVp?
• Radiobiological effects that first appear minutes, days, or weeks after exposure are termed what?
• What is the approximate difference in intensity of exposure between the two edges of a 14*17 film as a result of the so-called "heel effect"?
• What is the function of a filter in radiography?
• How often is retake analysis recommended?
• What is the recommended humidity range for storing open packages of photographic film?
• How often should grid uniformity and alignment be checked?
• What occurs to the intensity of radiation when the source is moved further from an object?
• The definition of a "high radiation area" is a radiation level that could result in an individual receiving a dose equivalent in excess of what amount?
• Which of the following is directly proportional to the dose delivered to the patient?
• What is the regulatory provision for occupational exposure of a declared pregnant woman PER MONTH?
• In Processor Quality Control, what is the acceptable range for density difference?
• Bone marrow is affected as a somatic dose indicator. What type of depression results?
• What occurs when X-rays hit the intensifying screens during radiographic imaging?
• The function of a _______ is to reduce the scattered radiation produced in the patient before it reaches the X-ray film.
• The radiation exposure measured by an ionization chamber radiating 90 degrees from the patient at one meter is about what fraction of the incident radiation?
• What is a consequence of skin exposure without protective measures during radiography?
• Which of the following are conditions that may result in grid cutoff?
• What is the estimated minimum radiation dose in rads to the embryo/fetus that can cause deleterious effects?
• When inspecting the processor stand-by units, what is the primary concern?
• What is the major tool of quality control for daylight systems?
• What method should be employed to check the accuracy of a water flow meter?
• What does 'remnant radiation' refer to?
• If the operator stands behind a portable shield, what is the approximate total radiation dose reduction?
• What occurs as the target angle in the line-focus principle decreases?
• From the following, which factors can x-ray personnel directly control during equipment use?
• Which of the following should be checked and reported for daylight systems use?
• What is the effect on image quality when the intensity of radiation decreases?
• Approximately what percentage of the energy deposited in the target by electrons is converted to x-rays?
• Which type of film quality issue arises when humidity is too high?
• In a linear, non-threshold dose-effect curve, where does the curve intersect the abscissa?
• Which statements regarding daily checking of processor developer solution temperature are TRUE?
• Which of the following is a consequence of failing to use gonad shielding during x-ray examinations?
• According to the principle of TIME, what should be minimized during X-ray exposure?
• The repeat rate for inexperienced or careless x-ray personnel is equal to or greater than:
• Which type of generator is known to provide the greatest reductions in patient dose and improvements in image quality?
• How does skin pigmentation affect exposure factors?
• Twenty-four hour notification to CDPH is required when individuals are exposed to an eye dose equivalent exceeding?
• Which of the following factors does NOT contribute to radiation protection?
• Which of the following quality control parameters should be tested daily?
• To ensure quality in film processing, what is being compensated for during replenishment?
• What is the process called where electrons are released from a heated tungsten filament?
• What is the best method to evaluate grid uniformity and alignment?
• What does the product of absorbed dose, quality factor, and modifying factors represent at the location of interest?
• What is the recommended HVL for x-ray tubes operating above 120 kVp?
• Which of the following is a long-term effect of radiation exposure?
• What are the three controls on the x-ray machine?
• Which examinations require the use of gonad shields for male patients, unless specifically requested otherwise?
• What is the alternative technique to follow if photo timing is not available for small children?
• What does kVp primarily determine in radiographic imaging?
• Hereditary effects and cancer incidence are classified as which type of effects?
• What is the typical skin dose for patients undergoing CT examinations?
• Which unit of measure corresponds to dose equivalent in radiation?
• What impacts the quality of an x-ray image the most?
• Grids with a ratio above 8:1 are recommended for use above which kVp level?
• Under which conditions must gonads be shielded?
• Which of the following are recommended methods for reducing radiation dose to the breasts during scoliosis examinations?
• When discussing radiation dose, what does the term 'rem' refer to?
• What is measured by a sensitometric strip?
• If a worker exceeds a total effective dose equivalent of 5 rems within 24 hours, what is the required action?
• Which of the following factors can affect the quality of radiographic images?
• What tool should be used with the screen/film contact across the entire film/screen surface?
• What percentage of radiation dose reduction to the gonads can be achieved with 0.5 mm lead equivalent gonad shields?
• What is the annual occupational dose equivalent limit for the lens of the eye according to 10 CFR 20?
• How are tungsten's properties significant in an x-ray tube?
• For film archival, thiosulfate levels calculated from fixer retention testing should be how many mg/cm²?
• What is a concern related to the genetic significance of radiation exposure?
• What occurs when humidity rises above 60%?
• Which of the following occurs as a result of a weak fixer solution?
• What is the designated population that should never hold patients during an exam?
• Which of the following is referred to as "technical errors" or "hardware errors"?
• At what body-part thickness is the use of a grid recommended?
• What does 1 Gray equal in terms of absorbed dose?
• Which of the following is true regarding radiation dose and legal limits?
• What is the term for radiation coming from the tube housing, except for the useful beam?
• What will reduce patient radiation dose?
• Which accessory is known to decrease patient radiation dose when used properly?
• What is defined as the energy imparted by ionizing radiation per unit mass of irradiated material?
• When verifying the X-ray Beam Perpendicularity, what measurement is directly assessed?
• Where does the so-called "heel effect" distribute more radiation intensity?
• Which terms correctly refer to the x-ray beam consisting of a spectrum of energies?
• What is the typical skin dose for CT examinations?
• Which of the following are disadvantages of using pocket ionization chambers as personnel monitoring devices?
• Which of the following causes films to smell and turn yellow over time?
• Most occupational exposure comes from which type of radiation?
• What light spectrum are X-ray films most sensitive to when used with calcium tungstate intensifying screens?
• What is the annual occupational dose equivalent limit set for the whole body dose?
• The spinning target of a general purpose x-ray tube is primarily made of which material?
• Which of the following is part of the x-ray tube anode?
• How frequently should an analysis of the number of retakes be conducted?
• Which cells are most severely depressed as a result of bone marrow exposure?
• If the dose is calculated as (0.1mrad/hour) X (hour/60 min) X 10 min X 10 (QF), what is the result?
• What type of energy is transformed during the process of Brems radiation?
• What percentage of X-rays actually interact with intensifying screens?
• What would be a shallow-dose equivalent limit for skin or extremities that needs immediate notification?
• Darkroom humidity should be maintained in which range?
• What device is used to measure the optical density of an exposed and processed film?
• Which factor does NOT affect scattered radiation?
• What is the term for film darkening that detracts from film quality?
• What principle helps reduce exposure to ionizing radiation?
• How far should the operator be positioned from the patient during mobile radiography?
• The purpose of the half-value layer in radiation measurement is to?
• What is the purpose of the replenishment formulation rates in automatic film processing?
• In radiography, what can an increase in kilovolt peak (kVp) level typically improve?
• What types of documents should supervisors be responsible for displaying in the workplace?
• How often should the accuracy of a built-in thermometer be checked?
• What is a key factor for adjusting radiographic techniques for infants and small children?
• Which exposure tracking practice is required for individuals holding patients during radiographic examinations?
• What is the minimum source-to-skin distance recommended for X-ray exposure?
• When is it necessary to consider the use of gonad shields?
• Genetic radiobiological effects are evidenced through which of the following phenomena?
• Under which condition is the 24-hour notification to the Radiological Health Branch required?
• Which method is commonly used to reduce patient exposure during x-ray procedures?
• How many monitoring devices should personnel wear, and what are they called?
• How much time should be spent in the darkroom before testing for fog?
• Which bone-marrow cell type is most severely affected by irradiation?
• Which of the following factors contributes to the reduced downtime of equipment in a QA program?
• Which equipment must be included in the quality assurance program?
• Ionizing radiation could lead to which of the following outcomes?
• What characterizes the secondary protective barrier in radiographic settings?
• Which operator console knob controls x-ray beam quality?
• Which type of radiation can penetrate through the human body and is commonly used in medical imaging?
• What is the purpose of a grid in radiography?
• Which parameter primarily affects image sharpness in radiography?
• What is the outcome of doubling the distance from an X-ray source, based on the inverse square law?
• What is the primary purpose of added filtration in an x-ray machine?
• What is the approximate range of potential difference used in diagnostic radiography?
• What is a barrier used to attenuate the primary useful beam called?
• Which components are typically found in a collimator?
• What is the recommended HVL for x-ray tubes operating between 50-70 kVp?
• Damage to the individual irradiated is termed?
• What is an example of a radiographic study using natural shielding to decrease radiation to the ovaries?
• What must be done to ensure quality control in radiographic practices?
• What is the main purpose of gonadal shielding in radiography?
• What does the term 'film sensitivity' refer to in radiography?
• What safety equipment is crucial for personnel monitoring in radiography?
• What is the maximum occupational exposure limit for a declared pregnant woman?
• In order to limit the probability of stochastic effects, what must the supervisor ensure?
• What is the main source of scattered radiation in radiography?
• What is the primary reason for retaking a radiographic film?
• What should operators do to minimize radiation exposure during CT scans?
• What do visible light photons cause during film development?
• Which type of radiation interaction primarily produces the Heat in the anode?
• What is the conservative approach to radiation protection guidelines regarding genetic effects of radiation?
• How often should a sensitometric strip be checked?
• What is the effect of using a high kVp during an x-ray examination?
• Why are children generally more sensitive to radiation effects?
• What percentage of all repeats are from films of the ABD region, despite accounting for 25% of all diagnostic x-ray examinations?
• What should be checked visually to ensure the water filters are functioning correctly?
• What is the approximate patient skin dose for CT examinations?
• What is the term for the type of molecular change induced directly by radiation?
• What is the normal thickness range for protective gloves in lead equivalency?
• What is the limit for eye dose equivalent that requires immediate notification?
• Which of the following processing errors causes films to turn black with poor image contrast?
• What type of thermometer is recommended for daily developer temperature tests?
• How often should the x-ray beam be tested?
• Under what conditions does CA law require appropriate structural shielding for mobile x-ray equipment?
• What type of radiation is most likely to cause ionization in human tissue?
• What protective measures should an operator take if they must remain in the room during patient CT scanning?
• What is one significant advantage of using high-frequency generators in radiography?
• What percentage of retakes is typically due to errors in positioning?
• Is the CT beam generally well collimated?
• Based on animal experiments, which statement is true regarding genetic effects from radiation exposure?
• Which of the following are considered high bone marrow dose examinations?
• Where should a personnel monitoring device be worn during working hours?
• What is the appropriate frequency for performing clean-up films in a processor?
• Which of the following QA and QC guidelines should be checked DAILY?
• How is 100 mrem over 60 min calculated for a 10-minute exposure?
• When should the Processor Quality Control be conducted?
• What is the special unit of absorbed dose commonly referred to as?
• What is the sensitivity of regular rare-earth screens compared to calcium tungstate screens?
• What should sensitometric strips be exposed to for evaluation?
• Which X-ray region accounts for approximately 25% of all diagnostic X-ray examinations?
• When is 24-hour notification required for overexposure incidents?
• Which factor is cited as the largest contribution to unnecessary patient radiation dose?
• Which of the following will INCREASE attenuation of x-rays inside the body?
• What is the MOST IMPORTANT FACTOR in the production of scattered radiation?
• Which document should mention the conditions for maintaining QA and QC records?
• At what temperature should finished radiographs be stored?
• Which QC parameters should be tested MONTHLY?
• What is the main reason for protecting the gonads during an x-ray?
• What is the relationship between operator exposure to scattered radiation and patient radiation dose?
• What is the primary benefit of using intensifying screens in radiography?
• What type of radiation is not intended for patient exposure during radiographic procedures?
• What is the performance criterion for mid-density in Processor Quality Control?
• What is the special material placed in the useful beam to absorb less penetrating radiation?
• Which X-ray equipment feature may hinder imaging of infants and very small children?
• In QA programs, which element is crucial for maintaining equipment safety?
• Which of the following is accomplished by appropriate filtration?
• What is the minimum source-to-skin distance for a mobile x-ray unit?
• Which of the following factors does NOT affect the quantity of scattered radiation?
• How often should fixer retention be tested?
• What are the technical advantages of 3-phase or high-frequency generators over single-phase generators?
• The projected focal spot size measured along the central axis at the image receptor is referred to as?
• What does the size of the focal spot influence in radiography?
• What does kVp stand for in radiography?
• What is radiation not serving a purpose, which includes leakage and secondary radiation, known as?
• Which of the following must be used on children and potentially procreative patients, when applicable, if it does not interfere with the diagnosis?
• How often should the water flow meter accuracy be checked?
• Approximately what % of cases will require major adjustments to a radiographic technique chart?
• What is the immediate notification threshold for total effective dose equivalent?
• How many 14 * 17 films must be processed daily to maintain consistency in most automatic film processors?
• Why is proper collimation important in radiography?
• Mid-density is usually measured around how much optical density (OD) above the base-plus-fog level?
• What is a common effect of using too high of kVp during an x-ray procedure?
• What happens if humidity drops below standard levels?
• What type of long-term effects can radiation injury cause?
• Which of the following statements is true regarding mobile X-ray unit exposures?
• What is the effect of decreasing the target-to-skin distance from 40 inches to 38 inches?
• Which factor does not directly influence radiation dose to a patient?
• Which of the following can result from repeated exposure to ionizing radiation?
• What is defined as the difference in density between the light and dark areas on the processed film?
• Which of the following projections would NOT take advantage of the "heel effect" if the cathode end was aimed toward the head?
• What should the light and x-ray field alignment be tested with?
• Which measures should an operator take if they remain in the radiographic room during exposure?
• What is the function of a grid in radiography?
• What should a user do when over-exposure of a film badge occurs?
• What does the sensitometric strip measure when passed through the film processor?
• How much does the use of intensifying screens reduce the radiation dose to the patient during examinations?
• What is the principle of ALARA in radiation protection?
• What should the humidity be maintained between for optimal film quality?
• What does collowing proper film handling improve in radiographic imaging?
• The ratio of image size to object size is known as what?
• What type of illumination should be used in a darkroom?
• Which type of examination is specifically noted for requiring additional protection for the gonads?
• How should exposure factors be adjusted for a patient with emphysema?
• Why should film fogging be eliminated?
• What is the primary purpose of collimation in radiography?
• Which of the following projections would NOT take advantage of the so-called "heel effect" if the cathode was toward the feet?
• What is the light-sensitive material that coats the film in radiographic imaging?
• What material is used to make the x-ray tube envelope that encloses a vacuum?
• What is the maximum acceptable increase in density during a darkroom fog test?
• What is true regarding semi-annual testing for collimator light field and X-ray field alignment?
• Under what circumstances may hospital personnel hold a patient during an X-ray?
• What is the maximum level of full body x-radiation exposure that typically shows no indication of injury?
• Which type of dose response curve is associated with cataract formation?
• What is the term for the unit that denotes the maximum electrical potential difference in an X-ray tube?
• Which of the following is categorized as a non-stochastic (deterministic) effect?
• Who is responsible for establishing and updating the radiography procedures manual?
• To obtain a diagnostic quality image, what should be the kVP and mAs settings used for low dose radiography?
• Which of the following statements is part of the Law of Bergonie and Tribondeau?
• What is the optimum target-to-film distance for most radiographic examinations?
• X-ray penetration (quality) is decided by which of the following?
• What gross cellular effects can result from exposure to ionizing radiation?
• What is the definition of half value layer?
• What is the cited repeated rate for experienced x-ray personnel?
• What is a known deterministic effect of ionizing radiation exposure?
• What does the term "optical density" refer to in the context of radiography?
• Which of the following reduce patient radiation dose?
• How should all photographic chemicals be positioned for optimal storage?
• The main DISADVANTAGE of a BUCKY (moving) grid compared to an equal ratio stationary grid is?
• Which body area shows the highest frequency of retakes?
• What is the acceptable range for SID indicator accuracy?
• What could happen if films are not handled carefully?
• The inverse square law indicates that as distance from the X-ray source increases, radiation exposure...
• What types of streaks are produced on a finished radiograph as a result of development/processing?
• What is the maximum particle size that should pass through the water filters in the QC program?
• A radiation worker accidentally receives a full-body dose of 10 Sv. How many rads did he receive?
• Which of the following are considered long-term effects of radiation exposure?
• Which type of radiation monitoring is most commonly used in radiographic settings?
• If an individual receives a dose rate of 120 mrad/hour for 10 minutes, what total exposure do they receive?
• What must be consulted to select the primary factors for an x-ray procedure?
• To reduce radiation dose to patients, how should the kVP and mAs be set?
• How often should darkroom fog be tested?
• Approximately 5% of the incident x-ray photons emerge from the patient to form the radiographic image, which is termed what?
• What common issue is likely the cause of scratches on films?
• What does an increase in kVp typically do to the patient radiation dose?
• Film speed (S) is defined as the reciprocal of the radiation dose in rads required to produce a density of 1.0 above base and __________ densities.
• Which records of QC tests must be maintained for x-ray performance?
• A facility is conditionally exempt from silver recovery requirements if it generates less than 500 gallons per month of silver-containing solution, which includes?
• Why is operator exposure from CT exams generally very low?
• What tube-detector geometry is used by third generation CT scanners?
• What is the typical range for density difference measurement in optical density?
• What are the units for absorbed dose mentioned in the text?
• What are the primary controls on the x-ray machine?
• What is the primary purpose of checking phototimer reproducibility?
• How do operator exposures from CT examinations compare to those from planar radiography?
• What should be done to ensure the density produced in phantom films is reliable?
• The x-ray beam must be centered to what in relation to the x-ray film?
• Which of the following projections would NOT take advantage of the so-called "heel effect" if the cathode end was aimed toward the head?
• What are standardized quality control tests designed to detect?
• Which interaction leads to the production of characteristic x-rays?
• Which of the following is recommended regarding collimation?
• Which of the following is an advantage of using high kVp technique in radiography?
• What percentage of retakes are attributed to exposure factor errors?
• What does the term "radiographic latitude" refer to?
• When radiographing a patient with emphysema, what is the recommended adjustment for KVP and MaS?
• What hypothesis suggests that any amount of radiation can cause damage?
• Which aspects can x-ray personnel influence directly during equipment use?
• Which of the following doses is considered safe for a radiation worker within a year?
• X-ray equipment that absorbs less penetrating x-rays before they reach a patient is called what?
• Which of the following is used for annual testing of X-ray system filtration?
• For how long must records of maintenance and/or repairs of x-ray equipment be kept?
• Which statements regarding daily checking of film washing time are TRUE?
• What is the range of the film badge measured in?
• What does phototiming ensure during radiography?
• When photo timing is not available for infant radiography, technique charts should be based on patient:
• What minimum level of shielding is typically most effective in a radiography setting?
• How often should screen/film/cassette speed matching be evaluated?
• Measurement of the radiation dose to the skin of the anterior chest is a reasonable indicator of:
• Which cell type is severely depleted by small amounts of radiation (50-70 rem)?
• What type of radiation is primarily involved in the Compton effect during radiography?
• How should radiographic films be stored to prevent damage?
• Which factors can x-ray personnel directly influence during the day-to-day use of equipment?
• How frequently should testing for screen/film contact be conducted?
• What is the most critical aspect to maintain in radiographic practice?
• What device is used to measure the amount of inherent filtration in the x-ray beam?
• The genetically significant dose depends on which of the following factors?
• What percentage of incident photons emerges from the patient unaffected during X-ray procedures?
• Scattered radiation coming from the patient, compared to the primary incident radiation, is:
• The collimator light beam allows the x-ray beam to be properly aligned with the correct patient anatomy and the________?
• Which device is typically used to measure radiation exposure in the environment?
• Which factors influence patient radiation dose?
• How frequently should focal spot size, KVP accuracy, and exposure time accuracy be checked?
• Regarding irradiation of fertile females, which statements are true?
• Which statement is true regarding the densitometric strips?
• What do personnel monitoring device readings represent?
• What is an effect of using improper filtration in radiography?
• What is the parameter for checking the wash-water temperature?
• Which of the following is a failure related to X-ray equipment and accessories?
• Which types of grids are recommended for pediatric radiography?
• Which processing error can cause films to turn yellow-brown and emit a sulfur smell?
• Which of the following can be used to determine the barrier thickness needed to attenuate radiation?
• Which is a consequence of excessive radiation exposure?
• Which of the following interactions contribute to attenuation of x-rays inside the body during radiography?
• Which of the following are requirements for mobile X-ray equipment exposure switches?
• What is considered the least radiation dose to the fetus that could cause spontaneous abortion?
• What does the threshold dose represent in the dose-effect curve?
• Which of the following are considered x-ray personnel errors when classifying reasons for repeated films?
• What is an advantage of using high kVp in radiographic techniques?
• QC parameters that should be tested annually include:
• How can tank level checks, clean-up films, and crossover rollers be tested?
• What is the significance of maintaining a consistent target-to-film distance?
• What is the main risk associated with inadequate quality control in radiography?
• What is the primary purpose of a radiographic grid?
• What is the test device used for X-ray Beam verification?
• What is the primary purpose of using intensifying screens in radiography?
• What is a barrier used to attenuate stray radiation also known as scatter referred to as?
• If the quality of the darkroom and processing techniques are inadequate, what may be impossible to produce?
• Which of the following are LONG TERM effects from exposure to ionizing radiation?
• What is the term for the natural environment where an event occurs?
• What effect does increasing filtration have on patient radiation dose?