Radiology Test 1 Multiple Choice exam |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
with correct answers |||\\\ |||\\\
Which of the following statements regarding all electromagnetic radiations of the
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
electromagentic spectrum is incorrect? |||\\\ |||\\\ |||\\\
A:They are arranged according to their wavelength and frequency
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
B:They have no mass |||\\\ |||\\\ |||\\\
C:They have no electrical charges |||\\\ |||\\\ |||\\\ |||\\\
D:They travel at various speeds - correct answer✔✔D
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
X-rays were discovered in the year:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:1985
B:1895
C:1865
D:1898 - correct answer✔✔B |||\\\ |||\\\ |||\\\ |||\\\
The process by which the nucleus of an unstable atom decays in an effort to obtain a more
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
balanced state is termed: |||\\\ |||\\\ |||\\\
A:radioactivity
B:radiation
C:radiographs
D:radiography - correct answer✔✔A |||\\\ |||\\\ |||\\\ |||\\\
Of the following, select the scientific term used for referencing the approximate amount of
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
time radioactive elements take to decay:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:Half-life
,B:isotope
C:half-value layer |||\\\
D:alpha time - correct answer✔✔A |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
All of the following regarding ionization is true except:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:all radiations on the electromagnetic spectrum may cause ionization
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
B:Ionization is the process whereby an electrically neutral atom becomes unstable through the |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
loss of an orbital shell electron
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
C:ionization is a dangerous characteristic of X-radiation |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
D:ionization can cause stable but harmful re-combinations of atoms to occur - correct |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
answer✔✔A
Which of the following is specific for each element and establishes its chemical characteristics?
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:protons
B:Neutrons
C:electrons
D:Orbital shells - correct answer✔✔A |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Which of the following statements is true regarding dental radiographs?
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:an oral examination with dental radiographs limits the practitioner to what is only seen
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
clinically
B:Dental radiographs are not a necessary component in providing comprehensive dental
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
treatment planning |||\\\
C:Radiographs are an important tool in detecting many dental diseases |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
D:under no circumstances should dental radiographs be taken on a pregnant patient - correct
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
answer✔✔C
, Which device within the x-ray machine is responsible for decreasing the voltage at the
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
cathode?
A:rectifying device |||\\\
B:step down transformer |||\\\ |||\\\
C:rheostat
D:autotransformer - correct answer✔✔B |||\\\ |||\\\ |||\\\ |||\\\
Which term describes electrical pressure or force?
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:amperage |||\\\
B:ionization
C:voltage
D:rectification - correct answer✔✔C |||\\\ |||\\\ |||\\\ |||\\\
Which part of the x-ray tube is heated when the electrical current passes into the cathode
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
circuit?
A:the focal spot
|||\\\ |||\\\
B:the tungsten filament
|||\\\ |||\\\
C:the copper stem
|||\\\ |||\\\
D:the anode - correct answer✔✔B
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
The actual focal spot in the tungsten target:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:serves to generate x-rays over a large surface area for better dissipation of heat
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
B:serves to concentrate the produced x-rays into a smaller area for increased image clearity
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
C:is angled at 40 degrees
|||\\\ |||\\\ |||\\\ |||\\\
D:is square - correct answer✔✔A
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
The PID is the extension of the
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
with correct answers |||\\\ |||\\\
Which of the following statements regarding all electromagnetic radiations of the
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
electromagentic spectrum is incorrect? |||\\\ |||\\\ |||\\\
A:They are arranged according to their wavelength and frequency
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
B:They have no mass |||\\\ |||\\\ |||\\\
C:They have no electrical charges |||\\\ |||\\\ |||\\\ |||\\\
D:They travel at various speeds - correct answer✔✔D
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
X-rays were discovered in the year:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:1985
B:1895
C:1865
D:1898 - correct answer✔✔B |||\\\ |||\\\ |||\\\ |||\\\
The process by which the nucleus of an unstable atom decays in an effort to obtain a more
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
balanced state is termed: |||\\\ |||\\\ |||\\\
A:radioactivity
B:radiation
C:radiographs
D:radiography - correct answer✔✔A |||\\\ |||\\\ |||\\\ |||\\\
Of the following, select the scientific term used for referencing the approximate amount of
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
time radioactive elements take to decay:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:Half-life
,B:isotope
C:half-value layer |||\\\
D:alpha time - correct answer✔✔A |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
All of the following regarding ionization is true except:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:all radiations on the electromagnetic spectrum may cause ionization
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
B:Ionization is the process whereby an electrically neutral atom becomes unstable through the |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
loss of an orbital shell electron
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
C:ionization is a dangerous characteristic of X-radiation |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
D:ionization can cause stable but harmful re-combinations of atoms to occur - correct |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
answer✔✔A
Which of the following is specific for each element and establishes its chemical characteristics?
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:protons
B:Neutrons
C:electrons
D:Orbital shells - correct answer✔✔A |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Which of the following statements is true regarding dental radiographs?
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:an oral examination with dental radiographs limits the practitioner to what is only seen
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
clinically
B:Dental radiographs are not a necessary component in providing comprehensive dental
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
treatment planning |||\\\
C:Radiographs are an important tool in detecting many dental diseases |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
D:under no circumstances should dental radiographs be taken on a pregnant patient - correct
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
answer✔✔C
, Which device within the x-ray machine is responsible for decreasing the voltage at the
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
cathode?
A:rectifying device |||\\\
B:step down transformer |||\\\ |||\\\
C:rheostat
D:autotransformer - correct answer✔✔B |||\\\ |||\\\ |||\\\ |||\\\
Which term describes electrical pressure or force?
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:amperage |||\\\
B:ionization
C:voltage
D:rectification - correct answer✔✔C |||\\\ |||\\\ |||\\\ |||\\\
Which part of the x-ray tube is heated when the electrical current passes into the cathode
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
circuit?
A:the focal spot
|||\\\ |||\\\
B:the tungsten filament
|||\\\ |||\\\
C:the copper stem
|||\\\ |||\\\
D:the anode - correct answer✔✔B
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
The actual focal spot in the tungsten target:
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
A:serves to generate x-rays over a large surface area for better dissipation of heat
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
B:serves to concentrate the produced x-rays into a smaller area for increased image clearity
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
C:is angled at 40 degrees
|||\\\ |||\\\ |||\\\ |||\\\
D:is square - correct answer✔✔A
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
The PID is the extension of the
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
