RAD TCDHA FINAL EXAM NEWEST 2024 ACTUAL EXAM 180 QUESTIONS AND CORRECT DETAILED
ANSWERS
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 - (answer) determined by the distance between
the orbiting electrons and the nucleus
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 x-rays? - (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
, RAD TCDHA FINAL EXAM NEWEST 2024 ACTUAL EXAM 180 QUESTIONS AND CORRECT DETAILED
ANSWERS
in dental radiography, the term .......... is used to describe the mean energy or penetrating ability of the
x-ray beam - (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 - (answer) first statement is true; the second statement is false
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
(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 - (answer) both statements are fals
refers to the total amount of radiation that is received or absorbed - (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 - (answer) both statements are true
what should you do prior to taking x-rays to protect your patient from radiation exposure - (answer)
proper prescribing of radiographs
the thyroid collar - (answer) is recommended for all intraoral exposures
the lead apron - (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 - (answer) exposure time
ANSWERS
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 - (answer) determined by the distance between
the orbiting electrons and the nucleus
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 x-rays? - (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
, RAD TCDHA FINAL EXAM NEWEST 2024 ACTUAL EXAM 180 QUESTIONS AND CORRECT DETAILED
ANSWERS
in dental radiography, the term .......... is used to describe the mean energy or penetrating ability of the
x-ray beam - (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 - (answer) first statement is true; the second statement is false
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
(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 - (answer) both statements are fals
refers to the total amount of radiation that is received or absorbed - (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 - (answer) both statements are true
what should you do prior to taking x-rays to protect your patient from radiation exposure - (answer)
proper prescribing of radiographs
the thyroid collar - (answer) is recommended for all intraoral exposures
the lead apron - (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 - (answer) exposure time
