This is the content of the pop-over!

DANB's LDRT (LDRT) Practice Tests & Test Prep by Exam Edge - Free Test


(5.0) Based on 34 Reviews
DANB's Licensed Dental Radiologic Technologist   product image

DANB LDRT Practice Test Features

Everything you need to pass your certification exam!


Our free DANB's Licensed Dental Radiologic Technologist (LDRT) Practice Test was created by experienced educators who designed them to align with the official Dental Assisting National Board content guidelines. They were built to accurately mirror the real exam's structure, coverage of topics, difficulty, and types of questions.

Upon completing your free practice test, it will be instantly reviewed to give you an idea of your score and potential performance on the actual test. Carefully study your feedback to each question to assess whether your responses were correct or incorrect. This is an effective way to highlight your strengths and weaknesses across different content areas, guiding you on where to concentrate your study efforts for improvement on future tests. Our detailed explanations will provide the information you need to enhance your understanding of the exam content and help you build your knowledge base leading you to better test results.

Login or Create an Account to take a free test

After you have completed your free test you will receive a special promo code that will save your between 10-15% on any additional practice tests!

Testimonial Image ExamEdge's online practice test is that they mimicked the actual exam. I walked into the exam feeling confident I knew the material and walked out knowing my time studying with Exam Edge was well worth the effort."

Olivia R., Washington

** Sample images, content may not apply to your exam **

DANB's Licensed Dental Radiologic Technologist Sample Test

1 of 5

When duplicating a patient's film, the longer the film is exposed to the light, the _______ the film becomes.





Correct Answer:
lighter.


when duplicating a patient's film, the longer the film is exposed to the light, the lighter the film becomes. this happens because the type of film used in duplication processes is designed to respond to light exposure differently than standard photographic or radiographic films.

normally, in traditional film photography or radiography, the film darkens as it is exposed to more light. this is due to the chemical properties of the film's emulsion layers, which contain silver halide crystals. these crystals react to light; the more light they are exposed to, the more they darken. this process is what typically produces the image on the film.

however, duplicating film works on a different principle. duplicating films are used specifically for creating copies of already processed films. these films are generally more sensitive to light and have a different type of emulsion that is designed to lighten during exposure. the light exposure degrades the duplicating film's emulsion, resulting in lighter areas on the film where more light hits it.

the rationale behind this is that duplicating a film typically involves reversing the tones of the original image. where the original has darker tones (more exposure in the original film), the duplicating film exposed to this area will become lighter. conversely, areas with lighter tones on the original will result in darker tones on the duplicate because these areas allow less light to pass through during the duplicating process.

this is why, when duplicating a patient's film, increasing the light exposure time results in a lighter duplicate film. the process is designed to inverse the tonal range of the original image, producing a clear and accurate copy for further medical review or record-keeping. understanding this property of duplicating films is crucial for technicians to achieve the desired results in medical imaging duplication.


Return To Main Product Page Back To General Exam Info