TCDHA RADIOGRAPHY MIDTERM AND FINAL
EXAM REVIEW NEWEST ACTUAL EXAM WITH
COMPLETE QUESTIONS AND DETAILED
VERIFIED ANSWERS GRADED A+ | 100%
VERIFIED |
what is the purpose of the lead foil sheet found within the film pocket? -
CORRECT ANSWER ✔✔- to shield the film from secondary backscattered
radiation
what should you do prior to taking x-rays to protect your patient from radiation
exposure - CORRECT ANSWER ✔✔- proper prescribing of radiographs
A fast film responds more quickly than a slow film, because - CORRECT
ANSWER ✔✔- the silver halide crystals in the emulsion are larger
what would be an example of the use of interpersonal skills rather than technical
skills with patients - CORRECT ANSWER ✔✔- discussing the rationale for use of
dental image
radiation is defined as - CORRECT ANSWER ✔✔- a form of energy carried by
waves or streams of particles
when taking images on a patient with a hearing disability, (1) you should wear
your mask (2) because of infection control guidelines - CORRECT ANSWER
✔✔- both statements are false
1|Page
,If a person is blind or visually impaired, the dental radiographer must - CORRECT
ANSWER ✔✔- communicate using clear verbal explanations
with digital imaging, the term ........... is used to describe the pictures that are
produced - CORRECT ANSWER ✔✔- image
it is questionable whether digital images can be used as evidence in lawsuits,
because - CORRECT ANSWER ✔✔- the original digital image can be enhanced
a radiograph is defined as - CORRECT ANSWER ✔✔- a picture on film produced
by the passage of x-rays through an object or body
why are dental images important - CORRECT 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 - CORRECT ANSWER ✔✔- F. Gordon Fitzgerald
which of the following would you place in the patients mouth in order to take
dental x-rays - CORRECT ANSWER ✔✔- image receptor
the orbiting shell closest to the nucleus has the highest energy level - CORRECT
ANSWER ✔✔- true
the binding energy or binding force of an electron is - CORRECT ANSWER ✔✔-
determined by the distance between the orbiting electrons and the nucleus
2|Page
,ionization - CORRECT ANSWER ✔✔- an atom that gains an electron has a
negative charge, and an atom that loses an electron has a positive charge
ionizing radiation - CORRECT 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 x-rays? - CORRECT ANSWER
✔✔- insulation oil
the head collimator - CORRECT ANSWER ✔✔- restricts the size of the x-ray
beam
which would you adjust if you wanted to create a larger electron cloud -
CORRECT ANSWER ✔✔- mA
in dental radiography, the term .......... is used to describe the mean energy or
penetrating ability of the x-ray beam - CORRECT ANSWER ✔✔- quality
(1) density is the overall darkness or blackness of a dental image (2) when the
kilovoltage is increased while other exposure factors rain constant, the resultant
image exhibits a decreased density and appears lighter - CORRECT ANSWER
✔✔- first statement is true; the second statement is false
mA regulates the ........... of electrons produced at the cathode filament -
CORRECT ANSWER ✔✔- quantity
3|Page
, according to the inverse square law, if the length of the PID is halved, the resultant
beam ............. as intense - CORRECT ANSWER ✔✔- one quarter
(1) as kV, mA, and time increases, x-ray beam intensity decreases (2) as distance
and filtration increase, the intensity of the x-ray beam increase - CORRECT
ANSWER ✔✔- both statements are fals
refers to the total amount of radiation that is received or absorbed - CORRECT
ANSWER ✔✔- total dose
(1) more radiation damage takes place with high dose rates (2) because a rapid
delivery of radiation does not allow time for cellular damage to be repaired -
CORRECT ANSWER ✔✔- both statements are true
the thyroid collar - CORRECT ANSWER ✔✔- is recommended for all intraoral
exposures
the lead apron - CORRECT ANSWER ✔✔- is recommended for intraoral
exposures
on some dental x-ray machines, only the .......... can be altered; the other
parameters are preset by the manufacturer - CORRECT ANSWER ✔✔- exposure
time
a film badge - CORRECT ANSWER ✔✔- is worn at waist level by the operator
the ........ allow for positioning of the tubehead - CORRECT ANSWER ✔✔-
extension arm
4|Page
EXAM REVIEW NEWEST ACTUAL EXAM WITH
COMPLETE QUESTIONS AND DETAILED
VERIFIED ANSWERS GRADED A+ | 100%
VERIFIED |
what is the purpose of the lead foil sheet found within the film pocket? -
CORRECT ANSWER ✔✔- to shield the film from secondary backscattered
radiation
what should you do prior to taking x-rays to protect your patient from radiation
exposure - CORRECT ANSWER ✔✔- proper prescribing of radiographs
A fast film responds more quickly than a slow film, because - CORRECT
ANSWER ✔✔- the silver halide crystals in the emulsion are larger
what would be an example of the use of interpersonal skills rather than technical
skills with patients - CORRECT ANSWER ✔✔- discussing the rationale for use of
dental image
radiation is defined as - CORRECT ANSWER ✔✔- a form of energy carried by
waves or streams of particles
when taking images on a patient with a hearing disability, (1) you should wear
your mask (2) because of infection control guidelines - CORRECT ANSWER
✔✔- both statements are false
1|Page
,If a person is blind or visually impaired, the dental radiographer must - CORRECT
ANSWER ✔✔- communicate using clear verbal explanations
with digital imaging, the term ........... is used to describe the pictures that are
produced - CORRECT ANSWER ✔✔- image
it is questionable whether digital images can be used as evidence in lawsuits,
because - CORRECT ANSWER ✔✔- the original digital image can be enhanced
a radiograph is defined as - CORRECT ANSWER ✔✔- a picture on film produced
by the passage of x-rays through an object or body
why are dental images important - CORRECT 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 - CORRECT ANSWER ✔✔- F. Gordon Fitzgerald
which of the following would you place in the patients mouth in order to take
dental x-rays - CORRECT ANSWER ✔✔- image receptor
the orbiting shell closest to the nucleus has the highest energy level - CORRECT
ANSWER ✔✔- true
the binding energy or binding force of an electron is - CORRECT ANSWER ✔✔-
determined by the distance between the orbiting electrons and the nucleus
2|Page
,ionization - CORRECT ANSWER ✔✔- an atom that gains an electron has a
negative charge, and an atom that loses an electron has a positive charge
ionizing radiation - CORRECT 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 x-rays? - CORRECT ANSWER
✔✔- insulation oil
the head collimator - CORRECT ANSWER ✔✔- restricts the size of the x-ray
beam
which would you adjust if you wanted to create a larger electron cloud -
CORRECT ANSWER ✔✔- mA
in dental radiography, the term .......... is used to describe the mean energy or
penetrating ability of the x-ray beam - CORRECT ANSWER ✔✔- quality
(1) density is the overall darkness or blackness of a dental image (2) when the
kilovoltage is increased while other exposure factors rain constant, the resultant
image exhibits a decreased density and appears lighter - CORRECT ANSWER
✔✔- first statement is true; the second statement is false
mA regulates the ........... of electrons produced at the cathode filament -
CORRECT ANSWER ✔✔- quantity
3|Page
, according to the inverse square law, if the length of the PID is halved, the resultant
beam ............. as intense - CORRECT ANSWER ✔✔- one quarter
(1) as kV, mA, and time increases, x-ray beam intensity decreases (2) as distance
and filtration increase, the intensity of the x-ray beam increase - CORRECT
ANSWER ✔✔- both statements are fals
refers to the total amount of radiation that is received or absorbed - CORRECT
ANSWER ✔✔- total dose
(1) more radiation damage takes place with high dose rates (2) because a rapid
delivery of radiation does not allow time for cellular damage to be repaired -
CORRECT ANSWER ✔✔- both statements are true
the thyroid collar - CORRECT ANSWER ✔✔- is recommended for all intraoral
exposures
the lead apron - CORRECT ANSWER ✔✔- is recommended for intraoral
exposures
on some dental x-ray machines, only the .......... can be altered; the other
parameters are preset by the manufacturer - CORRECT ANSWER ✔✔- exposure
time
a film badge - CORRECT ANSWER ✔✔- is worn at waist level by the operator
the ........ allow for positioning of the tubehead - CORRECT ANSWER ✔✔-
extension arm
4|Page
