DANB RHS PRACTICE TEST ACTUAL 2025/2026

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DANB RHS PRACTICE TEST ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Why is aluminum filtration used in dental X-ray tubeheads? - Answer -to harden the beam by removing low-energy protons The use of a rectangular collimator in dental radiography serves to: - Answer -reduce the radiation dose to the patient What is the effect of increasing the kVp (kilovoltage peak) on the contrast of a dental radiographic image? - Answer -decreases contrast, producing more shades of gray In panoramic radiography, what is the primary reason for the patient to bite on a bite block during image acquisition? - Answer -to align the teeth with the focal trough Which of the following factors does NOT affect the sharpness of a dental radiographic image? - Answer -beam collimation What is the most appropriate angle of vertical angulation for a maxillary molar periapical radiograph using the bisecting angle technique? - Answer -45 degrees When considering the inverse square law in dental radiography, if the distance from the X-ray source to the film is doubled, how does this affect the intensity of the X-ray beam? - Answer -it is reduced to one-fourth When adjusting the milliamperage on a dental X-ray unit, what is the primary outcome on the resulting image? - Answer -increased mA results in a denser (darker) image In dental radiography, the term "contrast resolution" refers to: Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com - Answer -the ability to distinguish between different shades of gray What is the primary purpose of using a grid in dental radiography? - Answer -to reduce scatter radiation and improve image clarity In the context of dental radiography, what is the significance of the anode heel effect? - Answer -it results in varying intensities across the X-ray beam, affecting film density What is the primary function of the fixer solution in film processing? - Answer -to remove unexposed and undeveloped silver halide crystals In dental radiography, the use of a faster film speed: - Answer -reduces patient exposure to radiation The principle of ALARA in dental radiography stands for: - Answer -as low as reasonably achievable When discussing the quality of an X-ray beam, what does the term "hardness" refer to? - Answer -the ability of the beam to penetrate tissues and objects What is the primary reason for using a lead apron with a thyroid collar during dental radiography? - Answer -to protect sensitive organs from scatter radiation What is the effect of using a longer PID (position-indicating device) in dental radiography? - Answer -it reduces the magnification and distortion of the image The term "focal spot" in dental radiography refers to: - Answer -the point at which the X-rays originate within the X-ray tube What role does the "target-to-film distance" play in dental radiography? - Answer -it affects the amount of geometric unsharpness in the image. In dental radiography, what is the primary benefit of using a digital sensor over traditional film? Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com