TCDHA RAD Midterm 1 Exam Questions and
Answers All Correct
_____ Particles are emitted from nuclei of heavy metals. - ANSWER-
ALPHA
._______ are accelerated particles with a mass of _____ and a charge
of _____ - ANSWER-Protons; 1; +1
.________ is the penetrating x-ray beam produced at the target of the
anode. - ANSWER-Primary Radiation
.________ Measures the energy produced by gamma radiation in a
cubic centimetre of air. - ANSWER-Roentgen (R)
.________ Portion of the tube permits a small number of x-rays to exit
from the X-ray tube. - ANSWER-The Unleaded glass window
.________ radiation effects are associated with acute radiation
syndrome. - ANSWER-Short-term
._________ filters the long-wavelength x-rays from the beam -
ANSWER-The aluminum disc
,.____________ Is a unit that relates the dose of any radiation to the
biological effect of that dose. - ANSWER-Rem
.(1) Density is the overall darkness or blackness of a dental image. (2)
When the kilovoltage is increased while other exposure factors
remain constant, the resultant image exhibits a decreased density and
appears lighter.
a. Both statement are true
b. Both statement are false
c. The first statement is true; the second statement is false - ANSWER-
c. The first statement is true; the second statement is false
.A beam alignment device can be used to help the dental radiographer
position the PID in relation to the ________ and the receptor. -
ANSWER-Tooth
.A beam of energy that has the power to penetrate substances and
record image shadows on a receptor is... - ANSWER-An x-ray
.A DENTAL radiograph is... - ANSWER-Is the dental image produced on
a recording medium
.A film emulsion has a homogeneous mixture of: - ANSWER-Gelatin
and halide crystals
, .A flexible piece of polyester plastic 0.2 mm in thickness that is
constructed to withstand heat, moisture, and chemical exposure is....
- ANSWER-A Film Base
.A form of energy carried by waves or streams of particles is defined
as... - ANSWER-Radiation
.A radiograph is... - ANSWER-An image of two-dimensional
representation of a three-dimensional object.
.A spontaneous emission of radiation from the disintegration of
unstable atomic nuclei is... - ANSWER-Radioactivity
.A thin layer of adhesive material that covers both sides of the film
base is... - ANSWER-Adhesive Layer
.According to inverse square law, the intensity of radiation is
________ proportional to the _________ from the source of radiation.
- ANSWER-Inversely; square of the distance
.According to the text, a size 1 receptor is always positioned with the
long portion of the receptor in a __________ direction, and size 2
receptor is always positioned with the long portion of the receptor in
a ________ direction. - ANSWER-Vertical; horizontal
Answers All Correct
_____ Particles are emitted from nuclei of heavy metals. - ANSWER-
ALPHA
._______ are accelerated particles with a mass of _____ and a charge
of _____ - ANSWER-Protons; 1; +1
.________ is the penetrating x-ray beam produced at the target of the
anode. - ANSWER-Primary Radiation
.________ Measures the energy produced by gamma radiation in a
cubic centimetre of air. - ANSWER-Roentgen (R)
.________ Portion of the tube permits a small number of x-rays to exit
from the X-ray tube. - ANSWER-The Unleaded glass window
.________ radiation effects are associated with acute radiation
syndrome. - ANSWER-Short-term
._________ filters the long-wavelength x-rays from the beam -
ANSWER-The aluminum disc
,.____________ Is a unit that relates the dose of any radiation to the
biological effect of that dose. - ANSWER-Rem
.(1) Density is the overall darkness or blackness of a dental image. (2)
When the kilovoltage is increased while other exposure factors
remain constant, the resultant image exhibits a decreased density and
appears lighter.
a. Both statement are true
b. Both statement are false
c. The first statement is true; the second statement is false - ANSWER-
c. The first statement is true; the second statement is false
.A beam alignment device can be used to help the dental radiographer
position the PID in relation to the ________ and the receptor. -
ANSWER-Tooth
.A beam of energy that has the power to penetrate substances and
record image shadows on a receptor is... - ANSWER-An x-ray
.A DENTAL radiograph is... - ANSWER-Is the dental image produced on
a recording medium
.A film emulsion has a homogeneous mixture of: - ANSWER-Gelatin
and halide crystals
, .A flexible piece of polyester plastic 0.2 mm in thickness that is
constructed to withstand heat, moisture, and chemical exposure is....
- ANSWER-A Film Base
.A form of energy carried by waves or streams of particles is defined
as... - ANSWER-Radiation
.A radiograph is... - ANSWER-An image of two-dimensional
representation of a three-dimensional object.
.A spontaneous emission of radiation from the disintegration of
unstable atomic nuclei is... - ANSWER-Radioactivity
.A thin layer of adhesive material that covers both sides of the film
base is... - ANSWER-Adhesive Layer
.According to inverse square law, the intensity of radiation is
________ proportional to the _________ from the source of radiation.
- ANSWER-Inversely; square of the distance
.According to the text, a size 1 receptor is always positioned with the
long portion of the receptor in a __________ direction, and size 2
receptor is always positioned with the long portion of the receptor in
a ________ direction. - ANSWER-Vertical; horizontal
