GXMO EXAM QUESTIONS AND
ANSWERS 100% CORRECT
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 .
, 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.
ANSWERS 100% CORRECT
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 .
, 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.
