LMRT ARRT EXAM questions and
answers 2024\2025 Grade A+
Roentgen discovered x-rays while working with a _____ tube?
- correct answer Crookes
An "electron cloud" surrounding the filament of the cathode is referred to as a
- correct answer Space charge
Free electrons of X-ray production come from the
- correct answer Filament
The creation of the space charge in the X-ray tube produces:
- correct answer thermionic emission
The majority of photons in the X-ray beam are created by which process?
- correct answer Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted into:
- correct answer heat
the high-speed rotation (10,000 rpm) of the anode enables
- correct answer Greater dissipation of heat from high technical factors
, The degree of angulation of the x-ray tube target will determine the:
- correct answer size of the actual and effective focal spot
A dual-focus X-ray tube has:
1: Two filaments
2: Two focal spot sizes
3: Two anodes
- correct answer 1 and 2
The anode heel effect is a phenomenon of X-ray production that results in:
- correct answer Uneven distribution of radiation within the x-ray field
The penetrating power of the X-ray beam is controlled by varying the
- correct answer Peak kilovoltage (kVp)
The rate flow of current flow across the X-ray tube is measured in
- correct answer mA
Doubling the mA will result in
1: increased patient dose
2: twice as many photons in the X-ray beam
3: increased radiographic density
- correct answer 1, 2, and 3
The unit used to indicate the total quantity of X-ray expose is
- correct answer Millionsampere-seconds (mAs)
The device for removing long-wavelength radiation from the primary X-ray beam is the
- correct answer Filter
answers 2024\2025 Grade A+
Roentgen discovered x-rays while working with a _____ tube?
- correct answer Crookes
An "electron cloud" surrounding the filament of the cathode is referred to as a
- correct answer Space charge
Free electrons of X-ray production come from the
- correct answer Filament
The creation of the space charge in the X-ray tube produces:
- correct answer thermionic emission
The majority of photons in the X-ray beam are created by which process?
- correct answer Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted into:
- correct answer heat
the high-speed rotation (10,000 rpm) of the anode enables
- correct answer Greater dissipation of heat from high technical factors
, The degree of angulation of the x-ray tube target will determine the:
- correct answer size of the actual and effective focal spot
A dual-focus X-ray tube has:
1: Two filaments
2: Two focal spot sizes
3: Two anodes
- correct answer 1 and 2
The anode heel effect is a phenomenon of X-ray production that results in:
- correct answer Uneven distribution of radiation within the x-ray field
The penetrating power of the X-ray beam is controlled by varying the
- correct answer Peak kilovoltage (kVp)
The rate flow of current flow across the X-ray tube is measured in
- correct answer mA
Doubling the mA will result in
1: increased patient dose
2: twice as many photons in the X-ray beam
3: increased radiographic density
- correct answer 1, 2, and 3
The unit used to indicate the total quantity of X-ray expose is
- correct answer Millionsampere-seconds (mAs)
The device for removing long-wavelength radiation from the primary X-ray beam is the
- correct answer Filter
