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LRA 211 - radiology Questions and Correct
Answers
The earliest atomic theory based on an arrangement similar to the
solar system is attributed to Ans: Rutherford
The three fundamental particles of the atom are the Ans: neutron,
proton, electron
The atomic nucleus contains Ans: neutrons and protons
The component of the nucleus that has a positive charge and mass
is the Ans: proton
The electron shell closest to the nucleus is lettered Ans: "k"
What is not part of the electromagnetic spectrum? Ans: sound
Which of the electromagnetic radiations have the lowest energy
level? Ans: radio waves
As the wave's frequency increases, the wavelength Ans: decreases
Frequency is typically measured in Ans: Hertz
The process of removing an electron from an atom is Ans:
ionization
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, 2 | Page
X-rays are produced from Ans: fast moving electrons
Which of the following helps to keep the x-ray tube cool on the
inside of the protective housing? Ans: oil bath and cooling fan
In terms of the x-ray tube, envelope is another name for the Ans:
glass or metal enclosure
The positive end of the x-ray tube is the Ans: anode
The negative end of the x-ray tube is the Ans: cathode
The area of the envelope where x-rays should exit the tube is the
Ans: target window
The anode serves as a(n) Ans: target for the electron interaction to
produce x-ray, electrical conductor, heat conductor.
The two types of anode designs are Ans: stationary and rotating
Tungsten is used to coat the anode disc because it Ans: has a high
atomic number
With a rotating anode, the focal spot becomes a focal Ans: track
X-rays are produced by Ans: characteristic and bremsstrahlung
interactions.
© 2025 All rights reserved
LRA 211 - radiology Questions and Correct
Answers
The earliest atomic theory based on an arrangement similar to the
solar system is attributed to Ans: Rutherford
The three fundamental particles of the atom are the Ans: neutron,
proton, electron
The atomic nucleus contains Ans: neutrons and protons
The component of the nucleus that has a positive charge and mass
is the Ans: proton
The electron shell closest to the nucleus is lettered Ans: "k"
What is not part of the electromagnetic spectrum? Ans: sound
Which of the electromagnetic radiations have the lowest energy
level? Ans: radio waves
As the wave's frequency increases, the wavelength Ans: decreases
Frequency is typically measured in Ans: Hertz
The process of removing an electron from an atom is Ans:
ionization
© 2025 All rights reserved
, 2 | Page
X-rays are produced from Ans: fast moving electrons
Which of the following helps to keep the x-ray tube cool on the
inside of the protective housing? Ans: oil bath and cooling fan
In terms of the x-ray tube, envelope is another name for the Ans:
glass or metal enclosure
The positive end of the x-ray tube is the Ans: anode
The negative end of the x-ray tube is the Ans: cathode
The area of the envelope where x-rays should exit the tube is the
Ans: target window
The anode serves as a(n) Ans: target for the electron interaction to
produce x-ray, electrical conductor, heat conductor.
The two types of anode designs are Ans: stationary and rotating
Tungsten is used to coat the anode disc because it Ans: has a high
atomic number
With a rotating anode, the focal spot becomes a focal Ans: track
X-rays are produced by Ans: characteristic and bremsstrahlung
interactions.
© 2025 All rights reserved
