DMI 106 Final Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
Capable of adding or removing an electron is defined as what? - CORRECT ANSWER -
Ionizing radiation
What do the production of x-rays require? - CORRECT ANSWER - Source of electrons,
method to accelerate, method to stop
Define attenuation - CORRECT ANSWER - Loss of radiation energy as it passes through
a patient
X-ray beam after it leaves the x-ray tube but before it interacts with the patient is called what? -
CORRECT ANSWER - Primary radiation
The radiation that exits after passing through matter is defined as what? - CORRECT
ANSWER - Remnant
What are the two things needed to produce and image? - CORRECT ANSWER - X-rays
and an image receptor
What is differential absorption? - CORRECT ANSWER - The difference between x-ray
photons that are absorbed and those that penetrate the body
Current passing through the X-ray tube, represents the quantity and calculated by the
multiplication of mA times S is which exposure factor? - CORRECT ANSWER - Mas
What Affects the beam quality and controls the penetration? - CORRECT ANSWER -
KVP
, The overall blackness or darkness of an image is termed: - CORRECT ANSWER - density
The visible differences between black and white on an image is defined as - CORRECT
ANSWER - Contrast
Structural lines on an image is called - CORRECT ANSWER - Detail
What are factors that affect density? - CORRECT ANSWER - Age, thickness, tissue
density, tissue composition, pathology
What are Factors that affect contrast - CORRECT ANSWER - KVp, portrait factors,
collimation, grids
What are factors that affect detail? - CORRECT ANSWER - Motion, focal spot size, SID,
OID
90-90 table tilts in which direction? - CORRECT ANSWER - Horizontal to complete
vertical either direction
What are the 4 tube supports? - CORRECT ANSWER - Floor mounted, floor to ceiling or
wall, ceiling mounted, table supported
90-30 table rotates in which direction? - CORRECT ANSWER - Complete vertical in one
direction and 30 degrees in another
What controls the contrast in a radiograph? - CORRECT ANSWER - kVp
What controls the density in a radiograph? - CORRECT ANSWER - mA
Exam Questions and CORRECT Answers
Capable of adding or removing an electron is defined as what? - CORRECT ANSWER -
Ionizing radiation
What do the production of x-rays require? - CORRECT ANSWER - Source of electrons,
method to accelerate, method to stop
Define attenuation - CORRECT ANSWER - Loss of radiation energy as it passes through
a patient
X-ray beam after it leaves the x-ray tube but before it interacts with the patient is called what? -
CORRECT ANSWER - Primary radiation
The radiation that exits after passing through matter is defined as what? - CORRECT
ANSWER - Remnant
What are the two things needed to produce and image? - CORRECT ANSWER - X-rays
and an image receptor
What is differential absorption? - CORRECT ANSWER - The difference between x-ray
photons that are absorbed and those that penetrate the body
Current passing through the X-ray tube, represents the quantity and calculated by the
multiplication of mA times S is which exposure factor? - CORRECT ANSWER - Mas
What Affects the beam quality and controls the penetration? - CORRECT ANSWER -
KVP
, The overall blackness or darkness of an image is termed: - CORRECT ANSWER - density
The visible differences between black and white on an image is defined as - CORRECT
ANSWER - Contrast
Structural lines on an image is called - CORRECT ANSWER - Detail
What are factors that affect density? - CORRECT ANSWER - Age, thickness, tissue
density, tissue composition, pathology
What are Factors that affect contrast - CORRECT ANSWER - KVp, portrait factors,
collimation, grids
What are factors that affect detail? - CORRECT ANSWER - Motion, focal spot size, SID,
OID
90-90 table tilts in which direction? - CORRECT ANSWER - Horizontal to complete
vertical either direction
What are the 4 tube supports? - CORRECT ANSWER - Floor mounted, floor to ceiling or
wall, ceiling mounted, table supported
90-30 table rotates in which direction? - CORRECT ANSWER - Complete vertical in one
direction and 30 degrees in another
What controls the contrast in a radiograph? - CORRECT ANSWER - kVp
What controls the density in a radiograph? - CORRECT ANSWER - mA
