Radtech Simulation Examination 2
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Blurred films may result from
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Incorrect vertical angulation
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Movement of the patient
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Increased kvp
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Old film
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This is your Radtec Simulation Exam 2 for HAAD,
this is taken from the last month's exam
you have 120 minutes to finish 100 items
you need 70% to pass
Answers are at the last page so DON'T EXIT IMMEDIATELY
PLEASE MAKE SURE THAT YOU HAVE A STRONG INTERNET CONNECTION
Quiz Preview
- 2.
To avoid gonadal exposure to x ray which of the follwing may be used
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Higher kvp
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Lead apron
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Finer detailed film
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Increased vertical angulation
Correct Answer
A. Lead apronExplanation
A lead apron may be used to avoid gonadal exposure to X-ray. Lead is a dense material that can effectively block X-ray radiation, so wearing a lead apron can provide a barrier between the X-rays and the gonads, reducing the risk of radiation exposure to these sensitive areas. Higher kvp, finer detailed film, and increased vertical angulation are not directly related to protecting against gonadal exposure to X-ray.Rate this question:
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- 3.
The best way to dry processed films is to
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Place them on paper towels
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Hang them suspending the films in air
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Place them in envelopes
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Place them flat on the counter
Correct Answer
A. Hang them suspending the films in airExplanation
Hanging the processed films in air is the best way to dry them because it allows for maximum airflow around the films, which helps to speed up the drying process. This method also helps to prevent any potential damage or distortion that could occur if the films were placed on paper towels or flat on the counter. Hanging the films also reduces the risk of moisture being trapped between the films and any other surfaces, which could lead to unwanted marks or smudges. Additionally, hanging the films ensures that they are kept in a safe and secure location while they dry.Rate this question:
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- 4.
Film fog may occur if there is
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A light leak in the darkroom
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Bending of the film
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Reversal of the film
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Extremely thick bone
Correct Answer
A. A light leak in the darkroomExplanation
Film fog may occur if there is a light leak in the darkroom. This is because a light leak allows unwanted light to enter the darkroom, which can expose the film and cause fogging. Film fog results in a loss of contrast and overall decrease in image quality. To prevent film fog, it is important to ensure that the darkroom is light-tight and free from any leaks that could compromise the film during development.Rate this question:
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- 5.
The x ray which is at the center of the primary beam is called the
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Cathode ray
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Secondary ray
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Restricted beam
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Central ray
Correct Answer
A. Central rayExplanation
The correct answer is "central ray". The central ray refers to the x-ray that is located at the center of the primary beam. It is the most focused and intense part of the x-ray beam, and it is responsible for producing the clearest and most detailed image. The central ray is crucial in diagnostic imaging as it provides the most accurate representation of the patient's anatomy.Rate this question:
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- 6.
Scatter radiation is a type of
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Secondary radiation
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Primary radiation
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Stray radiation
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None of the above
Correct Answer
A. Secondary radiationExplanation
Scatter radiation refers to the type of radiation that occurs when primary radiation interacts with matter and changes direction. It is called secondary radiation because it is produced as a result of the interaction of primary radiation with the material it encounters. Therefore, the correct answer is secondary radiation.Rate this question:
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- 7.
When exposing a radiograph the operator should stand
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Al least six feet from the xray head
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Two feet to the right of the primary beam
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Any distance in back of the xray head
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Four feet in front of patient
Correct Answer
A. Al least six feet from the xray headExplanation
The operator should stand at least six feet away from the x-ray head to minimize their exposure to radiation. This distance helps to reduce the risk of radiation exposure and protect the operator's health. Standing two feet to the right of the primary beam, any distance behind the x-ray head, or four feet in front of the patient would not provide the same level of protection from radiation as standing at least six feet away from the x-ray head.Rate this question:
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- 8.
A technique used to measure the operator 's exposure to radiation is
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To check the color of the operator's fingers
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For the operator to wear a radiation film badge
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The frequency of stomach pains
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To multiply the nunber of films the operator has exposed by 0.1 rem
Correct Answer
A. For the operator to wear a radiation film badgeExplanation
The correct answer is for the operator to wear a radiation film badge. Wearing a radiation film badge is a commonly used technique to measure an operator's exposure to radiation. The badge contains a film that darkens in response to radiation exposure, providing a quantitative measure of the amount of radiation the operator has been exposed to. This method allows for continuous monitoring of radiation levels and helps ensure that the operator's exposure remains within safe limits.Rate this question:
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- 9.
Intraoral film packets must be
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Resistant to salivary seepage
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Flexible
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Light tight
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Easy to open in the darkroom
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All of the above
Correct Answer
A. All of the aboveExplanation
Intraoral film packets must be resistant to salivary seepage to prevent any moisture from affecting the quality of the film. They should also be flexible to comfortably fit inside the patient's mouth during imaging. Additionally, they need to be light tight to prevent any unwanted exposure to light that could ruin the film. Lastly, they should be easy to open in the darkroom to ensure efficient and smooth workflow. Therefore, all of the given options are necessary for intraoral film packets.Rate this question:
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- 10.
The ALARA principles refers to
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Obtaining informed consent
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The disinfection procedures recommended in dental radiography
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Obtaining diagnostically acceptable radiographs with minimal exposure to radiation
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Decreasing the processing time for exposed radiographs
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None of above
Correct Answer
A. Obtaining diagnostically acceptable radiographs with minimal exposure to radiationExplanation
The ALARA principles refer to obtaining diagnostically acceptable radiographs with minimal exposure to radiation. This means that healthcare professionals should strive to take X-rays that provide the necessary diagnostic information while minimizing the amount of radiation exposure to the patient. This principle emphasizes the importance of balancing the need for accurate imaging with the potential risks associated with radiation. By following the ALARA principles, healthcare providers can ensure that patients receive the necessary radiographs while prioritizing their safety.Rate this question:
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- 11.
Intraoral film packets must be
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Resistant to salivary seepage
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Flexible
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Light tihgt
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Easy to open in the darkroom
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All of the above
Correct Answer
A. All of the aboveExplanation
The correct answer is "all of the above." Intraoral film packets need to be resistant to salivary seepage to prevent contamination and maintain image quality. They also need to be flexible to conform to the shape of the mouth for comfortable positioning. Being light tight is important to prevent exposure to light, which can damage the film. Lastly, they should be easy to open in the darkroom to facilitate efficient processing.Rate this question:
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- 12.
Xray are most effectively stopped by
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A vacuum
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Tungsten
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Copper
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Lead
Correct Answer
A. LeadExplanation
Lead is the correct answer because it is a dense material that effectively absorbs and blocks X-rays. Its high atomic number and density make it an ideal material for shielding against X-rays. Lead is commonly used in X-ray rooms, protective aprons, and walls to prevent the harmful effects of X-ray radiation.Rate this question:
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- 13.
If a radiograph remains in the developing solution too long the film will be
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Lighter
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Darker
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Lighter only if the temperature is increased
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Unaffected because time is not a factor
Correct Answer
A. DarkerExplanation
If a radiograph remains in the developing solution too long, the film will become darker. This is because the developing solution contains chemicals that react with the exposed silver halide crystals on the film, causing them to darken. If the film is left in the solution for an extended period, more of the silver halide crystals will be developed, resulting in a darker image.Rate this question:
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- 14.
When seating the patient the operator should
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Tell the patient what is being done
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Have the patient remove eyeglasses
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Have the patient remove intraoral removable appliances
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All of the above
Correct Answer
A. All of the aboveExplanation
When seating the patient, it is important for the operator to communicate with the patient and inform them about the procedure being done. This helps in establishing trust and reducing anxiety. Additionally, the patient should remove their eyeglasses to ensure comfort and prevent any damage during the procedure. Moreover, if the patient is wearing any intraoral removable appliances, such as dentures or retainers, they should be removed to provide better access and visibility for the operator. Therefore, all of the above options are necessary steps to be followed when seating the patient.Rate this question:
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- 15.
Film fog occurs when all or part of a radiograph is darkened by
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An imbalance or exhaustion of processing solutions
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A light leak
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Improper safelighting
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Improper safelilghting
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All of the above are potential sources
Correct Answer
A. All of the above are potential sourcesExplanation
Film fog can occur when there is an imbalance or exhaustion of processing solutions, a light leak, or improper safelighting. Any of these factors can lead to the radiograph becoming darkened. Therefore, all of the options mentioned in the answer are potential sources of film fog.Rate this question:
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- 16.
The first sign of x ray dermatitis is
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Loss of hair
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Purulent exudate
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Erythema
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Pain
Correct Answer
A. ErythemaExplanation
Erythema is the correct answer because it refers to redness of the skin, which is a common early sign of x-ray dermatitis. This condition occurs when the skin is exposed to high levels of radiation, causing inflammation and damage to the skin cells. Erythema typically appears within a few hours to days after exposure and can be accompanied by other symptoms such as itching or burning sensation. It is an important indicator for diagnosing and monitoring the progression of x-ray dermatitis.Rate this question:
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- 17.
Radiographs should always be viewed
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In a well lit room
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On a viewbox
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In the operatory
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By holding them up to a celling light
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Using hight from a window
Correct Answer
A. On a viewboxExplanation
The correct answer is "on a viewbox." Radiographs should always be viewed on a viewbox because it provides the optimal lighting conditions for accurately interpreting the images. A viewbox is specifically designed to provide uniform and consistent illumination, allowing the dental professional to properly assess the details and nuances of the radiographs. This ensures accurate diagnosis and treatment planning. Viewing radiographs in a well-lit room, in the operatory, or by holding them up to a ceiling light or using light from a window may result in uneven lighting, shadows, or glare, which can hinder the interpretation of the images.Rate this question:
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- 18.
Who should hold the film in a patient's mouth if he or she is unable to do so
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The dentist
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The assistant
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A friend or relative
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The receptionist
Correct Answer
A. A friend or relativeExplanation
A friend or relative should hold the film in a patient's mouth if he or she is unable to do so. This is because the friend or relative can provide the necessary support and assistance to ensure that the film is held securely and accurately in the patient's mouth. The dentist may be occupied with other tasks and may not be able to hold the film themselves. The assistant may also have other responsibilities in the dental office. The receptionist is unlikely to have the necessary training or knowledge to properly handle the film.Rate this question:
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- 19.
Which characteristic of xrays makes them both beneficial and hazardous?
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They destroy tissue
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They cause embolisms
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They use the body's heat
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They cause large fatty deposits to form
Correct Answer
A. They destroy tissueExplanation
X-rays are both beneficial and hazardous because they have the ability to destroy tissue. This characteristic is beneficial in medical imaging as it allows for the detection of abnormalities and diseases. However, it is also hazardous as excessive exposure to X-rays can lead to damage and destruction of healthy tissue, causing potential harm to the body. Therefore, while X-rays are valuable in diagnosing and treating medical conditions, their destructive nature necessitates careful and controlled usage to minimize the risks associated with them.Rate this question:
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- 20.
The device that converts x ray energy into visible light is called a(n)
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Cassette holder
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Step down transformer
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Intensitying screen
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Nonscreen film
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Screen film
Correct Answer
A. Intensitying screenExplanation
The device that converts X-ray energy into visible light is called an intensifying screen. Intensifying screens are used in conjunction with X-ray film to amplify the amount of light reaching the film, thereby reducing the amount of radiation required for imaging. This helps to minimize patient exposure to radiation while still producing a clear and diagnostic image.Rate this question:
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- 21.
Exposure of a radiograph on a child
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Requires less time than an adult
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Requires more time than an adult
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Requires the same time as an adult
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Should never be taken
Correct Answer
A. Requires less time than an adultExplanation
The exposure of a radiograph on a child requires less time than an adult because children have smaller body sizes and less dense tissues compared to adults. This means that the X-rays can penetrate through the child's body more easily, requiring less time for the image to be captured on the radiograph. Additionally, children are generally more sensitive to radiation, so minimizing their exposure time is important to reduce potential risks.Rate this question:
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- 22.
Wich cells are the most sensitive to xrays?
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Muscle
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Nerve
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Sperm
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Epithelial
Correct Answer
A. SpermExplanation
Sperm cells are the most sensitive to X-rays because they are rapidly dividing cells and have a high rate of DNA replication. X-rays can cause damage to the DNA, leading to mutations and impairing the ability of sperm cells to fertilize an egg. This sensitivity to X-rays is why radiation is often used as a form of contraception or sterilization.Rate this question:
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- 23.
The operator must avoid
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Stray radiation
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Secondary radiation
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The primary beam
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All of the above
Correct Answer
A. All of the aboveExplanation
The correct answer is "all of the above" because the operator must avoid all three types of radiation mentioned in the options: stray radiation, secondary radiation, and the primary beam. Stray radiation refers to any radiation that is not part of the intended beam and can pose a risk to both the operator and nearby individuals. Secondary radiation is the radiation that is produced when the primary beam interacts with objects or surfaces, and it can also be harmful. Lastly, the primary beam itself can be dangerous if not properly controlled and directed towards the intended target. Therefore, the operator must avoid all three types of radiation to ensure safety.Rate this question:
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- 24.
Periapical film
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Show the entire tooth
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Show the supporting structure of the tooth
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Come in various sizes
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All of the above
Correct Answer
A. All of the aboveExplanation
The periapical film is a type of dental X-ray film that is used to capture images of the entire tooth. It is designed to show not only the tooth itself but also the supporting structures around it, such as the roots and surrounding bone. These films come in various sizes to accommodate different areas of the mouth and different types of dental procedures. Therefore, the correct answer is "all of the above" as all the options mentioned are true for periapical films.Rate this question:
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- 25.
Which of the following materials is most resistant to x radiation?
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Copper
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Molybdenum
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Tungsten
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Lead
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Aluminum
Correct Answer
A. LeadExplanation
Lead is the most resistant material to X radiation because it has a high atomic number and density, which enables it to effectively absorb and attenuate X-ray radiation. Lead is commonly used as a shielding material in X-ray rooms and equipment to protect against radiation exposure. Its dense structure allows it to absorb a significant amount of X-ray energy, reducing the risk of radiation damage to surrounding areas. Copper, molybdenum, tungsten, and aluminum are less resistant to X radiation compared to lead.Rate this question:
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- 26.
To what does the term film speed refer?
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The developing time needed
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Sensitivity to x radiation
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Half life
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Degree of blackness on the exposed radiograph
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Shelf life
Correct Answer
A. Sensitivity to x radiationExplanation
Film speed refers to the sensitivity of a film to x radiation. This means that a higher film speed indicates a greater sensitivity to x radiation, allowing the film to capture more detail in low-light conditions or with shorter exposure times. Conversely, a lower film speed indicates a lower sensitivity to x radiation, requiring longer exposure times or more intense radiation to produce a properly exposed image.Rate this question:
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- 27.
The penetrating power of xrays depend on
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Kvp
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Ma
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Film speed
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Focal film distance
Correct Answer
A. KvpExplanation
The penetrating power of X-rays depends on kvp (kilovolt peak). The kvp determines the energy level of the X-rays, with higher kvp values resulting in more penetrating X-rays. This is because higher kvp values increase the speed and force with which electrons strike the anode, resulting in the production of X-rays with greater energy and penetration capabilities. Therefore, kvp is a crucial factor in determining the ability of X-rays to pass through different materials and produce clear images.Rate this question:
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- 28.
The most penetrating xrays have
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Low frequencies
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Soft rays
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Long wavelengths
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Long wavelengths
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Short wavelengths
Correct Answer
A. Short wavelengthsExplanation
Short wavelengths are associated with high energy and high frequency. X-rays are a form of electromagnetic radiation with very short wavelengths, making them highly penetrating. This allows them to pass through most substances, including body tissues, making them useful for medical imaging and other applications. Therefore, the answer "short wavelengths" is correct.Rate this question:
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- 29.
Maximum protection of the patient requires that the xray beam pass though a (n)
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Plastic closed ended cone
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Shielded open ended cone
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Water filter
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Oil filter
Correct Answer
A. Shielded open ended coneExplanation
A shielded open-ended cone is the best option for maximum patient protection because it provides a barrier to prevent unnecessary exposure to radiation. The open-ended design allows for easy positioning of the patient and the shielded material ensures that the x-ray beam is directed only towards the desired area, minimizing scatter radiation. The plastic closed-ended cone may not provide adequate shielding, while the water and oil filters are not suitable for directing the x-ray beam and offering protection.Rate this question:
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- 30.
Vertical angulation in the bisecting technique for the same radiograph may differ in patients due to
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The size of the teeth
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Anatomic differences
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Gagging
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Age
Correct Answer
A. Anatomic differencesExplanation
The vertical angulation in the bisecting technique for the same radiograph may differ in patients due to anatomic differences. This means that the position and shape of the teeth, as well as the overall anatomy of the patient's mouth, can vary from person to person. Therefore, to properly capture the image, the vertical angulation may need to be adjusted accordingly to ensure accurate and clear results.Rate this question:
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- 31.
The advantage of a film that has emulsion on both sides is that
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The film requires less radiation exposure
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The image produced is less distorted
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The film has less sensitivity to radiation
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Processing solutions work better
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The film is easier to mount
Correct Answer
A. The film requires less radiation exposureExplanation
The advantage of a film that has emulsion on both sides is that it requires less radiation exposure. This is because the emulsion on both sides increases the film's sensitivity to radiation, allowing it to capture more detail with less exposure.Rate this question:
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- 32.
Ionization has occurred when
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Cell death occurs
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Photons penetrate matter
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Radiant energy is converted to heat
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An electron is displaced from its orbit
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None of the above
Correct Answer
A. An electron is displaced from its orbitExplanation
Ionization occurs when an electron is displaced from its orbit. This process can happen when an atom or molecule gains or loses an electron, resulting in the formation of charged particles called ions. The displacement of an electron from its orbit leads to the creation of ions, which can have various effects such as cell death, penetration of photons through matter, or conversion of radiant energy to heat. Therefore, the correct answer is that ionization occurs when an electron is displaced from its orbit.Rate this question:
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- 33.
Occlusal films are used to determine
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Mesiodistal orientation of a tooth
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Buccal lingual orientation of a tooth
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The presence of anterior caries
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None of the above
Correct Answer
A. Buccal lingual orientation of a toothExplanation
Occlusal films are used to determine the buccal lingual orientation of a tooth. These films provide a panoramic view of the entire arch, allowing dentists to assess the relationship between the buccal and lingual surfaces of the teeth. This is particularly useful in identifying any abnormalities or irregularities in the alignment or positioning of the teeth. By examining the buccal lingual orientation, dentists can diagnose and plan treatment for conditions such as malocclusion, tooth impaction, or abnormal tooth eruption.Rate this question:
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- 34.
The strength of the safelight permitted in the darkroom depends on the
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Bulb in the safelight
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Light tightness of the room
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Sensitivity of the film
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Tooth being radiographed
Correct Answer
A. Sensitivity of the filmExplanation
The correct answer is "sensitivity of the film." The strength of the safelight permitted in the darkroom depends on the sensitivity of the film because different types of film have different levels of sensitivity to light. Some films are more sensitive and require a weaker safelight, while others are less sensitive and can tolerate a stronger safelight. Therefore, the sensitivity of the film determines the strength of the safelight that can be used in the darkroom to avoid exposing the film to excessive light.Rate this question:
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- 35.
Which of the following travel at the greatest speed?
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X ray
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Gamma rays
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Light
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Microwaves
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They all travel at the same speed
Correct Answer
A. They all travel at the same speedExplanation
X-rays, gamma rays, light, and microwaves all travel at the same speed, which is the speed of light in a vacuum. This speed is approximately 299,792,458 meters per second. According to the theory of relativity, the speed of light is a constant and does not vary depending on the type of wave or particle. Therefore, all the options listed in the question travel at the same maximum speed.Rate this question:
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- 36.
The amount of radiation a person receives
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Begings anew each day
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Is cumulative only on the skin
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Is cumulative in the entire body
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None of the above
Correct Answer
A. Is cumulative in the entire bodyExplanation
The given answer states that the amount of radiation a person receives is cumulative in the entire body. This means that the radiation exposure builds up over time and affects the entire body, rather than being limited to just the skin or starting fresh each day. This suggests that the effects of radiation can accumulate and potentially have long-term impacts on the person's health.Rate this question:
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- 37.
If the intensitying screens are not in perfect contact with the film which of the following will occur?
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The screen may be damaged
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The film may be damaged
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There will be a light leak
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There will be a loss of image sharpness
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A thin film will result
Correct Answer
A. There will be a loss of image sharpnessExplanation
If the intensifying screens are not in perfect contact with the film, there will be a loss of image sharpness. This is because the screens are designed to amplify the light reaching the film, and if there is a gap between the screens and the film, some of the light will be scattered or lost, resulting in a decrease in image sharpness.Rate this question:
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- 38.
What is the major advantage in using the fastest speed film and high kilovolt peak?
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It increases film density
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It increases film contrast
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It produces a clearer image
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It reduces the radiation exposure to the patient
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It makes film easier and faster to develop
Correct Answer
A. It reduces the radiation exposure to the patientExplanation
Using the fastest speed film and high kilovolt peak reduces the radiation exposure to the patient. This is because the fast film requires less radiation to produce a properly exposed image, and the high kilovolt peak allows for better penetration of the X-rays through the patient's body. As a result, the patient is exposed to less radiation during the imaging process, which is advantageous for their overall health and safety.Rate this question:
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- 39.
The quality or penetrating power of secondary radiation is
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More than that of primary radiation
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Less than that of primary radiation
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The same as that of primary radiation
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Unrelated to that of primary radiation
Correct Answer
A. Less than that of primary radiationExplanation
Secondary radiation refers to the radiation that is produced as a result of the interaction of primary radiation with matter. It can be in the form of scattered or secondary photons, as well as secondary particles such as electrons or protons. The quality or penetrating power of radiation refers to its ability to penetrate through matter. Primary radiation, being the initial radiation, typically has higher energy and thus greater penetrating power compared to secondary radiation. Therefore, the correct answer is that the quality or penetrating power of secondary radiation is less than that of primary radiation.Rate this question:
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- 40.
Bitewing radiographs are useful in helping to determine
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Interproximal caries
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Proximal bone height
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Fit of crowns
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All of the above
Correct Answer
A. All of the aboveExplanation
Bitewing radiographs are dental X-rays that are taken to visualize the upper and lower teeth in a specific region of the mouth. These radiographs are useful in helping to determine various dental conditions. They can detect interproximal caries, which are cavities that form between the teeth. Additionally, bitewing radiographs can provide information about the proximal bone height, which is important in evaluating the health of the supporting bone around the teeth. Lastly, these X-rays can also assess the fit of dental crowns, which are prosthetic devices used to restore damaged teeth. Therefore, all of the given options are correct and can be determined using bitewing radiographs.Rate this question:
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- 41.
The radiograph film is covered with an emulsion of
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Silver bromide salts
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Cellulose
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Silver acetate
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Potassium bromide
Correct Answer
A. Silver bromide saltsExplanation
The correct answer is silver bromide salts because radiograph films are coated with an emulsion that contains silver bromide salts. This emulsion is sensitive to light and helps capture the image during the radiographic process. Silver bromide salts have high sensitivity to X-rays, making them ideal for use in radiography. Cellulose, silver acetate, and potassium bromide are not typically used in radiograph films.Rate this question:
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- 42.
A constant source of radiation is
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Strontium 90
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Natural elements
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The sun
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All of the above
Correct Answer
A. All of the aboveExplanation
The correct answer is "all of the above" because all three options mentioned (strontium 90, natural elements, and the sun) can be considered as constant sources of radiation. Strontium 90 is a radioactive isotope that emits radiation, natural elements like uranium and radon also emit radiation, and the sun emits various forms of radiation, including ultraviolet and infrared. Therefore, all three options can be considered as constant sources of radiation.Rate this question:
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- 43.
Which extraoral film is used to visualized the sinus?
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Lateral oblique film
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Lateral skull film
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Waters films
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Posterior anterior film
Correct Answer
A. Waters filmsExplanation
Waters films are used to visualize the sinus. The Waters view is an extraoral radiographic technique that provides a clear view of the maxillary sinuses. It is obtained by placing the film under the patient's nose and angling the x-ray beam towards the forehead. This view helps to assess the sinuses for any abnormalities or pathologies such as sinusitis or tumors.Rate this question:
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- 44.
For x ray timers calibrated in impulses how many impulses are there in a second?
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10
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30
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60
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120
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15
Correct Answer
A. 60Explanation
X-ray timers calibrated in impulses measure the number of impulses that occur in a given time period. In this case, the question is asking how many impulses are there in a second. The correct answer is 60, indicating that there are 60 impulses in one second.Rate this question:
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- 45.
Which form of radiation can cause ionization of atoms?
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Radar
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Microwaves
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Radio waves
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Visible light
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Gamma rays
Correct Answer
A. Gamma raysExplanation
Gamma rays are a form of high-energy electromagnetic radiation that can cause ionization of atoms. When gamma rays interact with atoms, they can knock off electrons from the atoms, creating ions. This ionization process can have various effects, including damaging living tissues and causing genetic mutations. Therefore, gamma rays are known for their ability to cause ionization of atoms.Rate this question:
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- 46.
Film racks should be
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Clean and dry
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Numbered and lettered
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Neither of the above
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Both of the above
Correct Answer
A. Both of the aboveExplanation
Film racks should be both clean and dry, as this is important for maintaining the quality and longevity of the films stored in them. Clean racks prevent any dust or debris from contaminating the films, while dry racks prevent moisture buildup that can cause damage. Additionally, numbering and lettering the film racks helps in organizing and easily locating specific films, making the retrieval process more efficient. Therefore, both cleanliness and dryness, as well as numbering and lettering, are necessary for proper film rack maintenance.Rate this question:
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- 47.
Under the new metric system for measuring dose SI the rem replaced by the
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Rad
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Gray
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Sievert
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Becquerel
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Curie
Correct Answer
A. SievertExplanation
Under the new metric system for measuring dose in the International System of Units (SI), the rem unit has been replaced by the sievert. The sievert is the unit used to measure the biological effect of ionizing radiation on the human body. It takes into account the type of radiation and the sensitivity of different tissues and organs. The sievert is considered a more accurate and comprehensive measurement of radiation dose compared to the rem.Rate this question:
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- 48.
The best technique for reducing the radiation exposure to both patient and operator is the use of
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An automatic timer
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Fast film
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Thinner films
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A thicker cellulose acetate base
Correct Answer
A. Fast filmExplanation
Fast film is the best technique for reducing radiation exposure to both the patient and operator because it requires less exposure time to capture the image compared to slower films. This means that the patient and operator are exposed to radiation for a shorter duration, minimizing their overall radiation dose. Fast film also allows for higher image quality with less noise, reducing the need for retakes and further exposure.Rate this question:
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- 49.
The temperature of the radiographic processing solutions is adjusted by
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Individual heaters
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Chemical interaction
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A temperature adjustable water bath
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Gas heaters
Correct Answer
A. A temperature adjustable water bathExplanation
The temperature of the radiographic processing solutions is adjusted by a temperature adjustable water bath. This is because a water bath provides a controlled and consistent temperature environment for the solutions. By adjusting the temperature of the water bath, the temperature of the solutions can be easily regulated. This ensures that the solutions are maintained at the optimal temperature for efficient and accurate processing of radiographic films. Using individual heaters, chemical interaction, or gas heaters may not provide the same level of control and stability as a temperature adjustable water bath.Rate this question:
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Mar 22, 2023Quiz Edited by
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Sep 11, 2015Quiz Created by
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