Dental Assisting Radiology MN Licensure Exam Questions and Answers 100% Pass

Dental Assisting Radiology MN Licensure Exam Questions and Answers 100% Pass This is a device used to reduce the amount of scatter radiation that reaches an extraoral film during exposure. - Correct Answer ️️ -grid Identify the error that causes teeth to appear foreshortened on a radiograph. - Correct Answer ️️ -excessive vertical angle Identify the benefit of using a long-cone (16 inch) position-indicating device, versus a short-cone (8inch) position indicating device. - Correct Answer ️️ -less magnification What is the angulation of the central ray when using the bisection angle technique? - Correct Answer ️️ -90 degrees to the imaginary bisector The clearing test is used for checking the: - Correct Answer ️️ -fixer solution The step-up transformer is activated by the: - Correct Answer ️️ -exposure button If the intensity of a beam of radiation is given a value of "12" at a point 12 inches from the target the intensity of the beam at 24 inches from the target would be: - Correct Answer ️️ -3 Which type pf PID (positioning indicating device) is most effective in reducing patient exposure? - Correct Answer ️️ -rectangular Which of the following describes the use of a filter in a dental x-ray machine? a. a filter removes low-energy x-rays b. a filer decreases the mean energy of the beam c. a filer reduces the size and shape of the beam d. a filer removes the dose of radiation to the thyroid gland - Correct Answer ️️ -a. filter removes low-energy x-rays Which of the following is used as a collimator? a. lead plate b. aluminum plate c. copper plate d. molybdenum cup - Correct Answer ️️ -a. lead plate What is the purpose of the lead foil in the film packets? - Correct Answer ️️ -to stop the backscatter radiation The step-down transformer is controlled by the? - Correct Answer ️️ -mA dial (milliamperage) Where are x-rays produced? - Correct Answer ️️ -positive anode X-rays are made up of: - Correct Answer ️️ -photons Which film speed is currently the fastest intraoral film available? - Correct Answer ️️ -F speed film Which of the following appear most radiopaque on a radiograph?