1|Page
TCDHA RAD 1 ACTUAL EXAM LATEST 2025/ 2026
ACTUAL EXAM WITH COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||SURE PASS!!!||
||BRANDNEW!!!||
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
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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
c. Protons
d. alpha particle decay - Answer-a. Electrons
, 3|Page
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
TCDHA RAD 1 ACTUAL EXAM LATEST 2025/ 2026
ACTUAL EXAM WITH COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||SURE PASS!!!||
||BRANDNEW!!!||
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
,2|Page
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
c. Protons
d. alpha particle decay - Answer-a. Electrons
, 3|Page
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
