©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
GXMO Exam Study Guide 100% Verified And
Updated 2025
PROTON - Answer✔The positive particle found in the nucleus
GROUP - Answer✔A____ indicates the number of electrons in the outermost shell
ION - Answer✔A____ is an atom that has gained or lost an electron
Creates radiologic image - Answer✔Identify 1 important contribution from the process of
ionization
Natural Radiation - Answer✔The greatest source of radiation expsoure on average to the US
population is
4 - Answer✔particles are composed of the He nucleus
High/ Short - Answer✔"Hard x-rays posses____ frequency &____ wavelengths
UV - Answer✔Ionizing radiation is located above___ on the electromagnetic spectrum
Cosmic Gamma X-rays Ultraviolet Visible light Infrared radio - Answer✔"Can Gramma really use
Val's initial R" represents the order of the EMR spectrum. The word really represents........
X, Gamma - Answer✔___ rays originate by disturbing electrons and ____ rays originate from
the nucleus
Chemical, Biologic - Answer✔X-rays can produce______and____ changes in the human body
Produces secondary & scatter radiation
Highly penetrating invisible rays - Answer✔Identify 2 properties of X-rays
Compton - Answer✔The interaction that occurs when incident x-rays ionize atoms and change
direction with a loss of energy is called____ effect
Remant - Answer✔The radiation that remains after attenuation to reach the image receptor is
called
Increase - Answer✔As x-ray energy increases, we will have___ photons transmitted through
tissue .
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
Rad or Gray - Answer✔The traditional unit of measurement for patient doses is
Rem or Sievert - Answer✔The metric unit of radiation measurement as an occupational dose
equivalent is called
Friction - Answer✔The process of electrification by rubbing objects together is
Insulators - Answer✔Materials that inhibit the flow of electrons in a conductor are called
Unlike charges attract; like charges repel - Answer✔Identify 1 law of electrostatics:
Directly - Answer✔The electrostatic force is____ proportional to the product of the charges
Volt - Answer✔Electromotive force is another term for
Series - Answer✔An example of a___ circuit is when 1 Christmas tree bulb goes out, they all go
out
Alternating - Answer✔______current involves the oscillation of electrons in opposite directions.
300 mA 120kV - Answer✔General x-ray tube circuits utilize___mA and__kV.
Cathode - Answer✔The___ is the negative terminal contained in the glass envelope of the x-ray
tube.
Follow recommended warm up procedure - Answer✔Identify 1 method of prolonging x-ray
tube life.
Actual - Answer✔The__ focal spot is the surface on the anode that encounters the electron
stream.
Increase - Answer✔An increase in kVp will____ the penetrating ability of the x-ray beam.
Long - Answer✔The primary function of filtration is to eliminate___ wavelengths from the x-ray
beam.
2.5 mm Al - Answer✔Total filtration in diagnostic x-ray tubes is equivalent to___ mm Al.
100 mR/hr. at 1 m - Answer✔The protective housing reduces leakage radiation to less
than___mR/hr. at 1m.
Ionization - Answer✔AEC can be constructed with a photomultiplier tube or an____ chamber.
Radiographic Quality - Answer✔Exactness of anatomic structures within a useful density range
describes_____.
Noise - Answer✔Unwanted/ unnecessary optical densities on a radiographic image is called
mA - Answer✔The prime factor of exposure that determines the number of xrays is
Density - Answer✔The term___ is the degree of overall blackness on the image.
2|Page
GXMO Exam Study Guide 100% Verified And
Updated 2025
PROTON - Answer✔The positive particle found in the nucleus
GROUP - Answer✔A____ indicates the number of electrons in the outermost shell
ION - Answer✔A____ is an atom that has gained or lost an electron
Creates radiologic image - Answer✔Identify 1 important contribution from the process of
ionization
Natural Radiation - Answer✔The greatest source of radiation expsoure on average to the US
population is
4 - Answer✔particles are composed of the He nucleus
High/ Short - Answer✔"Hard x-rays posses____ frequency &____ wavelengths
UV - Answer✔Ionizing radiation is located above___ on the electromagnetic spectrum
Cosmic Gamma X-rays Ultraviolet Visible light Infrared radio - Answer✔"Can Gramma really use
Val's initial R" represents the order of the EMR spectrum. The word really represents........
X, Gamma - Answer✔___ rays originate by disturbing electrons and ____ rays originate from
the nucleus
Chemical, Biologic - Answer✔X-rays can produce______and____ changes in the human body
Produces secondary & scatter radiation
Highly penetrating invisible rays - Answer✔Identify 2 properties of X-rays
Compton - Answer✔The interaction that occurs when incident x-rays ionize atoms and change
direction with a loss of energy is called____ effect
Remant - Answer✔The radiation that remains after attenuation to reach the image receptor is
called
Increase - Answer✔As x-ray energy increases, we will have___ photons transmitted through
tissue .
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
Rad or Gray - Answer✔The traditional unit of measurement for patient doses is
Rem or Sievert - Answer✔The metric unit of radiation measurement as an occupational dose
equivalent is called
Friction - Answer✔The process of electrification by rubbing objects together is
Insulators - Answer✔Materials that inhibit the flow of electrons in a conductor are called
Unlike charges attract; like charges repel - Answer✔Identify 1 law of electrostatics:
Directly - Answer✔The electrostatic force is____ proportional to the product of the charges
Volt - Answer✔Electromotive force is another term for
Series - Answer✔An example of a___ circuit is when 1 Christmas tree bulb goes out, they all go
out
Alternating - Answer✔______current involves the oscillation of electrons in opposite directions.
300 mA 120kV - Answer✔General x-ray tube circuits utilize___mA and__kV.
Cathode - Answer✔The___ is the negative terminal contained in the glass envelope of the x-ray
tube.
Follow recommended warm up procedure - Answer✔Identify 1 method of prolonging x-ray
tube life.
Actual - Answer✔The__ focal spot is the surface on the anode that encounters the electron
stream.
Increase - Answer✔An increase in kVp will____ the penetrating ability of the x-ray beam.
Long - Answer✔The primary function of filtration is to eliminate___ wavelengths from the x-ray
beam.
2.5 mm Al - Answer✔Total filtration in diagnostic x-ray tubes is equivalent to___ mm Al.
100 mR/hr. at 1 m - Answer✔The protective housing reduces leakage radiation to less
than___mR/hr. at 1m.
Ionization - Answer✔AEC can be constructed with a photomultiplier tube or an____ chamber.
Radiographic Quality - Answer✔Exactness of anatomic structures within a useful density range
describes_____.
Noise - Answer✔Unwanted/ unnecessary optical densities on a radiographic image is called
mA - Answer✔The prime factor of exposure that determines the number of xrays is
Density - Answer✔The term___ is the degree of overall blackness on the image.
2|Page
