RAD MIDTERM 1 TCDHA (CHAPTERS 1-8, 17 & 19 (WEEKS 1-7) NEWEST 2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS
A form of energy carried by waves or streams of particles is defined as... - (answer) Radiation
The x-ray was discovered by... - (answer) Wilhelm Roentgen
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 patient's mouth in order to take dental x-rays?
a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph - (answer) b. Image Receptor
Which subatomic particle carries a negative electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon - (answer) c. An Electron
What is the binding energy or binding force of an electron is... - (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... - (answer)
Radioactivity
Cathode rays are derived from which of the following types of particulate radiation?
a. Electrons
b. Alpha Particles
, RAD MIDTERM 1 TCDHA (CHAPTERS 1-8, 17 & 19 (WEEKS 1-7) NEWEST 2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS
c. Protons
d. alpha particle decay - (answer) a. Electrons
What type of radiation includes x-rays and visible light? - (answer) Electromagnetic
Approximately what percentage of the kinetic energy of the electrons is converted to x-rays at the
anode? - (answer) Less than 1%
What restricts the size of the x-ray beam? - (answer) The Lead Collimator
Which form of the x-ray beam is more detrimental to the patient and operator? - (answer) Scatter
Radiation
What happens with the electrons when the kilovoltage is increased? - (answer) The electrons moves
from the CATHODE to the ANODE with more speed
Higher-energy x-ray beam with increased penetrating ability results by... - (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 - (answer) c. The first statement is true; the
second statement is false
What controls the quantity of x-rays produced? - (answer) Milliamperage (mA)
QUESTIONS AND CORRECT DETAILED ANSWERS
A form of energy carried by waves or streams of particles is defined as... - (answer) Radiation
The x-ray was discovered by... - (answer) Wilhelm Roentgen
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 patient's mouth in order to take dental x-rays?
a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph - (answer) b. Image Receptor
Which subatomic particle carries a negative electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon - (answer) c. An Electron
What is the binding energy or binding force of an electron is... - (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... - (answer)
Radioactivity
Cathode rays are derived from which of the following types of particulate radiation?
a. Electrons
b. Alpha Particles
, RAD MIDTERM 1 TCDHA (CHAPTERS 1-8, 17 & 19 (WEEKS 1-7) NEWEST 2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS
c. Protons
d. alpha particle decay - (answer) a. Electrons
What type of radiation includes x-rays and visible light? - (answer) Electromagnetic
Approximately what percentage of the kinetic energy of the electrons is converted to x-rays at the
anode? - (answer) Less than 1%
What restricts the size of the x-ray beam? - (answer) The Lead Collimator
Which form of the x-ray beam is more detrimental to the patient and operator? - (answer) Scatter
Radiation
What happens with the electrons when the kilovoltage is increased? - (answer) The electrons moves
from the CATHODE to the ANODE with more speed
Higher-energy x-ray beam with increased penetrating ability results by... - (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 - (answer) c. The first statement is true; the
second statement is false
What controls the quantity of x-rays produced? - (answer) Milliamperage (mA)
