RAD Midterm 1 TCDHA UPDATED
ACTUAL Exam Questions and CORRECT
Answers
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
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
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
ACTUAL Exam Questions and CORRECT
Answers
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
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
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
