TCDHA RAD MIDTERM Questions And Correct
Answers Verified Latest 2024-2025 Guaranteed Pass
Grade A + UPDATED!!
A form of energy carried by waves or streams of particles is defined as...
- ---CORRECT ANSWER-->Radiation
The x-ray was discovered by... - ---CORRECT ANSWER-->Wilhelm
Roentgen
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 patient's mouth in order
to take dental x-rays?
a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph - ---CORRECT ANSWER-->b. Image Receptor
Which subatomic particle carries a negative electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon - ---CORRECT ANSWER-->c. An Electron
1
Page
, What is the binding energy or binding force of an electron is... - ---
CORRECT ANSWER-->Determined by the distance between the orbiting
electrons and the nucleus
A spontaneous emission of radiation from the disintegration of
unstable atomic nuclei is... - ---CORRECT ANSWER-->Radioactivity
Cathode rays are derived from which of the following types of
particulate radiation?
a. Electrons
b. Alpha Particles
c. Protons
d. alpha particle decay - ---CORRECT ANSWER-->a. Electrons
What type of radiation includes x-rays and visible light? - ---CORRECT
ANSWER-->Electromagnetic
Approximately what percentage of the kinetic energy of the electrons is
converted to x-rays at the anode? - ---CORRECT ANSWER-->Less than
1%
What restricts the size of the x-ray beam? - ---CORRECT ANSWER-->The
Lead Collimator
Which form of the x-ray beam is more detrimental to the patient and
operator? - ---CORRECT ANSWER-->Scatter Radiation
2
Page
, What happens with the electrons when the kilovoltage is increased? - --
-CORRECT ANSWER-->The electrons moves from the CATHODE to the
ANODE with more speed
Higher-energy x-ray beam with increased penetrating ability results
by... - ---CORRECT ANSWER-->When the kilovolt is increased
(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 - ---
CORRECT ANSWER-->c. The first statement is true; the second
statement is false
What controls the quantity of x-rays produced? - ---CORRECT ANSWER--
>Milliamperage (mA)
In regard to increasing density: - ---CORRECT ANSWER-->An increase in
either kVp or mA will increase density.
According to inverse square law, the intensity of radiation is ________
proportional to the _________ from the source of radiation. - ---
CORRECT ANSWER-->Inversely; square of the distance
3
Page
Answers Verified Latest 2024-2025 Guaranteed Pass
Grade A + UPDATED!!
A form of energy carried by waves or streams of particles is defined as...
- ---CORRECT ANSWER-->Radiation
The x-ray was discovered by... - ---CORRECT ANSWER-->Wilhelm
Roentgen
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 patient's mouth in order
to take dental x-rays?
a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph - ---CORRECT ANSWER-->b. Image Receptor
Which subatomic particle carries a negative electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon - ---CORRECT ANSWER-->c. An Electron
1
Page
, What is the binding energy or binding force of an electron is... - ---
CORRECT ANSWER-->Determined by the distance between the orbiting
electrons and the nucleus
A spontaneous emission of radiation from the disintegration of
unstable atomic nuclei is... - ---CORRECT ANSWER-->Radioactivity
Cathode rays are derived from which of the following types of
particulate radiation?
a. Electrons
b. Alpha Particles
c. Protons
d. alpha particle decay - ---CORRECT ANSWER-->a. Electrons
What type of radiation includes x-rays and visible light? - ---CORRECT
ANSWER-->Electromagnetic
Approximately what percentage of the kinetic energy of the electrons is
converted to x-rays at the anode? - ---CORRECT ANSWER-->Less than
1%
What restricts the size of the x-ray beam? - ---CORRECT ANSWER-->The
Lead Collimator
Which form of the x-ray beam is more detrimental to the patient and
operator? - ---CORRECT ANSWER-->Scatter Radiation
2
Page
, What happens with the electrons when the kilovoltage is increased? - --
-CORRECT ANSWER-->The electrons moves from the CATHODE to the
ANODE with more speed
Higher-energy x-ray beam with increased penetrating ability results
by... - ---CORRECT ANSWER-->When the kilovolt is increased
(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 - ---
CORRECT ANSWER-->c. The first statement is true; the second
statement is false
What controls the quantity of x-rays produced? - ---CORRECT ANSWER--
>Milliamperage (mA)
In regard to increasing density: - ---CORRECT ANSWER-->An increase in
either kVp or mA will increase density.
According to inverse square law, the intensity of radiation is ________
proportional to the _________ from the source of radiation. - ---
CORRECT ANSWER-->Inversely; square of the distance
3
Page
