RAD112&RTBC&TEST&1 QUESTIONS WITH
APPROVED ANSWERS
Which are required for Xray production?
Means of rapidly accelerating/decelerating electrons and
Source of electrons
Which component of the Xray tube serves as the source of free electrons
Cathode filament
What technical factor is responsible for accelerating eletrons through the x-ray
tube?
Kilovoltage Peak (kVP)
Thermionic emission is the process within the xray tube directly responsible
for creating:
Free Electrons
Which component of the xray tube becomes negatively charged during an xray
exposure?
Cathode Filament
What technical factor is primarily responsible for controlling the energy of the
xray beam?
Kilovoltage Peak (kVp)
which condition is required to induce thermionic emission within the cathode
filament?
High current
Consider this scenario: an exposure of an obese patient results in inadequate
receptor exposure. What technical factor should be modified to increase the
energy and penetrability of the X-ray beam?
Kilovoltage peak (kVp)
Consider this scenario a portable chest X-ray demonstrates excessive
exposure. How can the technologists decrease the intensity of the X ray beam
while maintaining the same beam energy?
Decrease milliamperage
During an attempted x-ray exposure, the X ray tube fails to create any X ray
photons. The following conditions is most likely to explain this failure?
Breakage of the cathode filament
Which of the following describes an x-ray photon?
massless package of energy
Which of following describes the number of wave cycles per second of an
electromagnetic wave?
Frequency
The difference in energy between different forms of electromagnetic radiation
is the result of changes in?
Wavelength and Frequency
A decrease in the wavelength of an X ray photon results in which of the
following?
Increased frequency and increased energy
