FDI Assessment 2 Exam Questions With Correct Answers A+
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Module
FDI
Institution
FDI
FDI Assessment 2 Exam Questions With
Correct Answers A+
Factors that increase optical film density - Answer-increasing mAs
-Increasing Kvp
factors that increase optical film contrast - Answerdecrease KVP
The x-ray tube is where - Answerx-ray photons are created
the protective housing for the ...
FDI Assessment 2 Exam Questions With
Correct Answers A+
Factors that increase optical film density - Answer✔-increasing mAs
-Increasing Kvp
factors that increase optical film contrast - Answer✔decrease KVP
The x-ray tube is where - Answer✔x-ray photons are created
the protective housing for the x-ray tube contains - Answer✔insulating oil
cooling fan
x-ray tube
main purpose of the x-ray tube - Answer✔to maintain a vacuum within the tube
X-ray tube contains - Answer✔cathode, anode, induction motor
Cathode - Answer✔Negative electrode
provides the source of electrons for x-ray production
cathode contains - Answer✔filament and focusing cup
focusing cup - Answer✔receives a strong negative charge that forces the electrons together into a
cloud
Anode - Answer✔Positive electrode
Anode is composed of - Answer✔molybdenum, copper, tungsten, and graphite
anode contains - Answer✔target, stator, rotor
Where are x-rays produced? - Answer✔tungsten target
Filtration resulting from aluminum plates placed between the tube housing and the collimator is
known as ___________. - Answer✔added
The radiographer can use the anode-heel effect to their advantage by placing the _____ part of
the patient towards the _________. - Answer✔thickest; cathode
T/F
A 15 degree Anode target angle will have a smaller effective focal spot than a 10 degree Anode
target angle. - Answer✔FALSE
The smaller anode target angle will have a smaller effective focal spot due to the line-focus
principle. Thus, the 10 degree Anode target angle will have a SMALLER effective focal spot
than a 15 degree Anode target angle. In other words,
10 degree anode target angle = smaller effective focal spot
15 degree anode target angle = large effective focal spot
X-rays that escape through the protective housing are termed _______ radiation. -
Answer✔Leakage
The unit used to measure the tube current is _____________, which is associated with quantity
of x-rays produced. - Answer✔mA
The kinetic energy of the primary beam X-rays has a greater intensity on the cathode side of the
tube and diminishes towards the anode side of the tube. What is this phenomenon named? -
Answer✔Anode-heel effect
According to the National Council on Radiation Protection and Measurement, how many mm of
aluminum or it equivalent should be used for an x-ray machine operating at 70 kVp or higher? -
Answer✔2.5 mm
Which process accounts for a majority of the x-ray production in diagnostic ranges? -
Answer✔Bremsstrahlung
An x-ray generator that produces a 100% voltage ripple can be described as a ______________.
- Answer✔single phase
X-rays that are produced from any area other than the focal spot are known as ________
radiation. - Answer✔off-focus
Electrons are "boiled" off what portion of the x-ray tube? - Answer✔filament
What term is used to describe the boiling off of electrons from the filament when current is
applied? - Answer✔thermionic emission
t/f
2
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