RAD TCDHA FINAL EXAM NEWEST 2024
WITH UPDATED QUESTIONS AND
DETAILED CORRECT ANSWERS WITH
RATIONALES (ALREADY GRADED A+)
ionization - ANSWER-an atom that gains an electron has a
negative charge, and an atom that loses an electron has a
positive charge
ionizing radiation - ANSWER-radiation that is capable of
producing ions by removing or adding an electron to an atom
Heat is a byproduct of x-ray production. Which component of the
x-ray tubehead dissipates the heat created by the production of xrays? - ANSWER-insulation oil
the head collimator - ANSWER-restricts the size of the x-ray
beam
which would you adjust if you wanted to create a larger electron
cloud - ANSWER-mA
in dental radiography, the term .......... is used to describe the
mean energy or penetrating ability of the x-ray beam - ANSWERquality
(1) density is the overall darkness or blackness of a dental image
(2) when the kilovoltage is increased while other exposure factors
2 | P a g e
rain constant, the resultant image exhibits a decreased density
and appears lighter - ANSWER-first statement is true; the second
statement is false
radiation is defined as - ANSWER-a form of energy carried by
waves or streams of particles
a radiograph is defined as - ANSWER-a picture on film produced
by the passage of x-rays through an object or body
why are dental images important - ANSWER-many dental
diseases are typically discovered only through the use of dental
images
who modified the paralleling technique with the introduction of the
long-cone technique - ANSWER-F. Gordon Fitzgerald
which of the following would you place in the patients mouth in
order to take dental x-rays - ANSWER-image receptor
the orbiting shell closest to the nucleus has the highest energy
level - ANSWER-true
the binding energy or binding force of an electron is - ANSWERdetermined by the distance between the orbiting electrons and the
nucleus
mA regulates the ........... of electrons produced at the cathode
filament - ANSWER-quantity
according to the inverse square law, if the length of the PID is
halved, the resultant beam ............. as intense - ANSWER-one
quarter
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