FDI Past Quizzes (Final Review)
QUESTIONS AND ANSWERS
What is the definition of energy?
A. Anything that occupies space and has shape
B. The ability to do work
C. A force exerted by a body
D. The quantity of matter - ANSWER>>B
What does ALARA stand for? - ANSWER>>As Low As Reasonably Achievable
Which of the following is FALSE regarding x-rays?
A. They can cause chemical changes.
B. They are polyenergetic.
C. They can be focused by a lens
D. They travel at the speed of light. - ANSWER>>C
What was the device Roentgen was using when he discovered x-rays?
A. Anode tube
B. Geissler tube
C. Crookes tube
D. Coolidge tube - ANSWER>>C
The instantaneous production of light resulting from the interaction of some
type energy is called _______________. - ANSWER>>Fluorescence
As the frequency of electromagnetic radiation decreases, wavelength will
___________.
,A. decrease
B. increase
C. remain the same
D. frequency and wavelength are unrelated - ANSWER>>B
The distance between two successive crests or troughs of a wave defines
________ and is represented the Greek letter ________.
A. wavelength; nu
B. frequency; lambda
C. wavelength; lambda
D. wavelength; nu - ANSWER>>C
In what year were x-rays discovered?
A. 1895
B. 1898
C. 1901
D. 1904 - ANSWER>>A
Wavelength and frequency are _________ related. - ANSWER>>inversely
X-rays are classified as a specific type of energy termed ________ _________. -
ANSWER>>electromagnetic radiation
Central to minimizing the radiation dose to oneself and to others are the
cardinal principles of ________, __________, and ___________. -
ANSWER>>Shielding
Time
Distance
Who discovered x-rays?
,A. William Coolidge
B. Daniel David Palmer
C. Thomas Edison
D. Wilhelm Conrad Roentgen - ANSWER>>D
The x-ray beam used in diagnostic imaging can be described as being
____________.
A. monoenergetic
B. scattered
C. polyenergetic
D. homogenous - ANSWER>>C
The number of waves passing a given point per given unit of time defines _____
and is represented by the Greek letter ________.
A. wavelength; nu
B. wavelength; lambda
C. frequency; nu
D. frequency; lambda - ANSWER>>C
What was the phosphor Roentgen used is early experiments with x-rays?
A. cadmium tungstate
B. barium platinocyanide
C. calcium tungstate
D. molybdenum sulfide - ANSWER>>B
Which of the following is the purpose of collimation?
A. Limits field size reducing patient dose
B. Increase the quantity or number of photons in an x-ray beam.
C. Reduce exposure time
, D. Increase the intensity or penetrating power of the x-ray beam - ANSWER>>A
A ____________ is a small, discrete bundle of electromagnetic energy. -
ANSWER>>photon
What unit of measurement is used when referring to patient exposure?
A. roentgen or gray
B. rad or gray
C. rem or sievert
D. curie or becquerel - ANSWER>>B
Which primary control is responsible for the quality or penetrating power of the
x-ray beam?
A. miliamperage (mA)
B. time (sec)
C. kilovoltage peak (kVp)
D. distance - ANSWER>>C
Which of the following is the most closely related to a rad?
A. gray
B. curie
C. becquerel
D. sievert - ANSWER>>A
What two imaging properties are associated with visibility? -
ANSWER>>density/brightness and contrast
True/False: The process of differential absorption for image formation is the
same for digital and film-screen imaging. - ANSWER>>True
QUESTIONS AND ANSWERS
What is the definition of energy?
A. Anything that occupies space and has shape
B. The ability to do work
C. A force exerted by a body
D. The quantity of matter - ANSWER>>B
What does ALARA stand for? - ANSWER>>As Low As Reasonably Achievable
Which of the following is FALSE regarding x-rays?
A. They can cause chemical changes.
B. They are polyenergetic.
C. They can be focused by a lens
D. They travel at the speed of light. - ANSWER>>C
What was the device Roentgen was using when he discovered x-rays?
A. Anode tube
B. Geissler tube
C. Crookes tube
D. Coolidge tube - ANSWER>>C
The instantaneous production of light resulting from the interaction of some
type energy is called _______________. - ANSWER>>Fluorescence
As the frequency of electromagnetic radiation decreases, wavelength will
___________.
,A. decrease
B. increase
C. remain the same
D. frequency and wavelength are unrelated - ANSWER>>B
The distance between two successive crests or troughs of a wave defines
________ and is represented the Greek letter ________.
A. wavelength; nu
B. frequency; lambda
C. wavelength; lambda
D. wavelength; nu - ANSWER>>C
In what year were x-rays discovered?
A. 1895
B. 1898
C. 1901
D. 1904 - ANSWER>>A
Wavelength and frequency are _________ related. - ANSWER>>inversely
X-rays are classified as a specific type of energy termed ________ _________. -
ANSWER>>electromagnetic radiation
Central to minimizing the radiation dose to oneself and to others are the
cardinal principles of ________, __________, and ___________. -
ANSWER>>Shielding
Time
Distance
Who discovered x-rays?
,A. William Coolidge
B. Daniel David Palmer
C. Thomas Edison
D. Wilhelm Conrad Roentgen - ANSWER>>D
The x-ray beam used in diagnostic imaging can be described as being
____________.
A. monoenergetic
B. scattered
C. polyenergetic
D. homogenous - ANSWER>>C
The number of waves passing a given point per given unit of time defines _____
and is represented by the Greek letter ________.
A. wavelength; nu
B. wavelength; lambda
C. frequency; nu
D. frequency; lambda - ANSWER>>C
What was the phosphor Roentgen used is early experiments with x-rays?
A. cadmium tungstate
B. barium platinocyanide
C. calcium tungstate
D. molybdenum sulfide - ANSWER>>B
Which of the following is the purpose of collimation?
A. Limits field size reducing patient dose
B. Increase the quantity or number of photons in an x-ray beam.
C. Reduce exposure time
, D. Increase the intensity or penetrating power of the x-ray beam - ANSWER>>A
A ____________ is a small, discrete bundle of electromagnetic energy. -
ANSWER>>photon
What unit of measurement is used when referring to patient exposure?
A. roentgen or gray
B. rad or gray
C. rem or sievert
D. curie or becquerel - ANSWER>>B
Which primary control is responsible for the quality or penetrating power of the
x-ray beam?
A. miliamperage (mA)
B. time (sec)
C. kilovoltage peak (kVp)
D. distance - ANSWER>>C
Which of the following is the most closely related to a rad?
A. gray
B. curie
C. becquerel
D. sievert - ANSWER>>A
What two imaging properties are associated with visibility? -
ANSWER>>density/brightness and contrast
True/False: The process of differential absorption for image formation is the
same for digital and film-screen imaging. - ANSWER>>True
