This RTE 1401 Essentials of Radiographic Physics & Imaging Final Practice Test 2026/2027 contains 18 exam-style questions with correct answers covering essential concepts in radiographic physics, radiation science and diagnostic imaging. Across 8 pages, the material reviews radiographic grids and buckys, x-ray interactions with matter, electromagnetic and particulate radiation, digital imaging, scatter control, kVp and mAs relationships, atomic structure, radioactivity, radiation units, radiographic contrast and focal-spot selection. The cover page explicitly identifies the resource as an RTE 1401 final practice test for the 2026/2027 academic period.
The radiographic grid and image-quality questions examine grid caps, buckys and image-receptor positioning, along with the importance of scatter control in digital imaging. Students review how changing collimation from 14 × 17 to 8 × 10 affects exposure requirements and apply the 15% kVp rule, including the relationship between increasing kVp and doubling mAs with respect to radiation quantity. The document also tests low radiographic contrast and the relationship between similar densities and image appearance.
The radiation physics material distinguishes interactions between x-radiation and biologic matter, including Compton scattering, pair production and photoelectric absorption, while contrasting these with Bremsstrahlung. Additional questions address microwave energy, particulate radiation, alpha and beta particles, radioactive half-life and the conversion of an alpha particle into a neutral helium atom after acquiring electrons.
Atomic and electrical principles are also represented. The practice test reviews protons, neutrons and electrons as fundamental atomic particles, elements as basic forms of matter, isobars as atoms with different atomic numbers but identical mass numbers, and the relationship between voltage, joules and electric charge. Radiation measurement is tested through the SI exposure unit coulomb per kilogram.
The final questions reinforce practical radiographic imaging concepts, including whether a diagnostically sufficient film image should be repeated and how the radiographer selects the small or large focal spot at the operating console to determine which filament is used during an exposure. This combination of conceptual physics and imaging-application questions makes the document suitable for focused final-exam preparation.
A relevant academic reference for these subjects is Bushberg, Seibert, Leidholdt & Boone, The Essential Physics of Medical Imaging, a widely used medical-imaging physics text addressing x-ray production, interactions of radiation with matter, image formation, image quality and radiation measurement. The uploaded document itself does not identify the institution offering RTE 1401, so no university or college has been attributed without supporting evidence.
Relevant Students: This document is relevant to RTE 1401 students preparing for an Essentials of Radiographic Physics & Imaging final examination, as well as radiography and radiologic technology students studying introductory imaging physics. It is particularly useful for reviewing x-ray interactions, radiation quantities, atomic structure, grids, digital imaging, exposure factors, radiographic contrast and focal-spot selection.
Keywords: RTE 1401 final exam, RTE 1401 practice test, RTE , RTE 1401 questions and answers, Essentials of Radiographic Physics and Imaging, radiographic physics final exam, radiography practice questions, radiologic technology exam, x ray physics questions, radiation physics questions, radiographic grids, bucky grid, grid cap, scatter radiation control, digital radiography, kVp and mAs, 15 percent kVp rule, radiographic contrast, x ray interactions with matter, Compton scattering, photoelectric absorption, pair production, Bremsstrahlung radiation, particulate radiation, alpha particles, beta particles, radioactive half life, atomic structure, isobars, radiation exposure units, coulomb per kilogram, focal spot selection, image receptor, radiographic image quality
Content preview
RTE 1401 Essentials of
Radiographic Physics &
Imaging Final Practice Test
2026/2027 Exam Questions and
Answers | Already Graded A+
The type of grid that is permanently mounted but includes a channel for
the IR to slide into is the
a. wafer grid
b. bucky
c. grid cap
, d. grid cassette - ANSWER ✔✔grid cap
Which of the following is not a type of interaction between x-radiation
and biologic matter?
a. Compton scattering
b. Bremsstrahlung
c. Pair Production
d. Photoelectric absorption - ANSWER ✔✔Bremsstralung
Microwaves heat up food because their energy causes the atoms and
molecules to
a. dissolve
b. expand
c. vibrate
d. contract - ANSWER ✔✔vibrate
In LCD monitors, the number of TFT's is equal to the
