DHYG 1304: Exam 1 Questions With
Verified Answers 2025
the PID is sometimes called a "cone" because the PID of early dental xray machines
was of a pointed shape - Correct Answer-both statement and reason are correct and
related
the purpose of aluminum filtration is to - Correct Answer-absorb the less penetrating
long wavelengths to reduce radiation exposure
t/f: computed tomography eliminates the use of radiation to produce an image - Correct
Answer-false
the amount of energy deposited in the teeth or soft tissue by any type of radiation is
called the - Correct Answer-absorbed dose
t/f: a small area on the tungsten target of the anode toward which the electron beam is
directed is called the "focal spot" - Correct Answer-true
dental xray machines contain each of the following components except one. which one
is the exception? - Correct Answer-radioactive material
t/f: xrays make the materials they pass through radioactive - Correct Answer-false
each of the following is an advantage of digital imaging except one. which one is the
exception? - Correct Answer-it allows the use of pointed cones without radiation
hazards
guidelines for prescribing radiographs are based on - Correct Answer-all of these
how many electrical circuits are used in a dental xray machine? - Correct Answer-2
amperage measures the electric potential or force that moves electrons along a
conductor. increasing the force with which the electrons move increases the penetrating
potential of the xray beam. - Correct Answer-the first statement is false. the second
statement is true
the first dental radiograph was produced using an exposure time of - Correct Answer-25
minutes
t/f: thermionic emission refers to the release of electrons from the target material during
the process of incandescence - Correct Answer-true
CELESTINE808
Verified Answers 2025
the PID is sometimes called a "cone" because the PID of early dental xray machines
was of a pointed shape - Correct Answer-both statement and reason are correct and
related
the purpose of aluminum filtration is to - Correct Answer-absorb the less penetrating
long wavelengths to reduce radiation exposure
t/f: computed tomography eliminates the use of radiation to produce an image - Correct
Answer-false
the amount of energy deposited in the teeth or soft tissue by any type of radiation is
called the - Correct Answer-absorbed dose
t/f: a small area on the tungsten target of the anode toward which the electron beam is
directed is called the "focal spot" - Correct Answer-true
dental xray machines contain each of the following components except one. which one
is the exception? - Correct Answer-radioactive material
t/f: xrays make the materials they pass through radioactive - Correct Answer-false
each of the following is an advantage of digital imaging except one. which one is the
exception? - Correct Answer-it allows the use of pointed cones without radiation
hazards
guidelines for prescribing radiographs are based on - Correct Answer-all of these
how many electrical circuits are used in a dental xray machine? - Correct Answer-2
amperage measures the electric potential or force that moves electrons along a
conductor. increasing the force with which the electrons move increases the penetrating
potential of the xray beam. - Correct Answer-the first statement is false. the second
statement is true
the first dental radiograph was produced using an exposure time of - Correct Answer-25
minutes
t/f: thermionic emission refers to the release of electrons from the target material during
the process of incandescence - Correct Answer-true
CELESTINE808
