Course Introduction
Radiographic Physics Exam Practice
Tests
Radiographic Physics is a foundational course that explores the principles and applications of physics essential to the field of radiography. The course covers the nature and properties of X-rays, the interaction of radiation with matter, and the basic mechanisms of image formation. Students will examine the structure and operation of radiographic equipment, including X-ray tubes and generators, as well as the principles of radiation protection and safety. Emphasis is placed on understanding factors that affect image quality and patient dose, preparing students for the technical and safety demands of clinical practice in diagnostic imaging.
Recommended Textbook
Essentials of Radiographic Physics and Imaging 2nd Edition by James Johnston
Available Study Resources on Quizplus
16 Chapters
1530 Verified Questions
1530 Flashcards
Source URL: https://quizplus.com/study-set/1322 Page 2
Chapter 1: Introduction to the Imaging Sciences
Available Study Resources on Quizplus for this Chatper
76 Verified Questions
76 Flashcards
Source URL: https://quizplus.com/quiz/26349
Sample Questions
Q1) The ____________ is the SI unit equivalent to the Curie.
A)roentgen
B)Becquerel
C)sievert
D)gray
Answer: B
Q2) If a basketball goes from being stationary to a velocity of 18 m/s in 3 seconds,what is its acceleration?
A)6 N.
B)6 m/s².
C)6 m/s.
D)6 W.
Answer: B
Q3) What is the velocity of a baseball that travels 15 meters in 2 seconds?
A)7.5 N.
B)7.5 m/s².
C)7.5 J.
D)7.5 m/s.
Answer: D
To view all questions and flashcards with answers, click on the resource link above.
Page 3
Chapter 2: Structure of the Atom
Available Study Resources on Quizplus for this Chatper
63 Verified Questions
63 Flashcards
Source URL: https://quizplus.com/quiz/26350
Sample Questions
Q1) Elements can only occur naturally.
A)True
B)False
Answer: False
Q2) The simplest form of the substances that form matter is the A)atomic number
B)atomic mass number
C)element
D)compound
Answer: C
Q3) Each electron shell has a specific limit to the amounts of electrons it can hold.
A)True
B)False
Answer: True
Q4) An ionic bond results in an electrically charged molecule or compound.
A)True
B)False
Answer: False
To view all questions and flashcards with answers, click on the resource link above.
Page 4
Chapter 3: Electromagnetic and Particulate Radiation
Available Study Resources on Quizplus for this Chatper
58 Verified Questions
58 Flashcards
Source URL: https://quizplus.com/quiz/26351
Sample Questions
Q1) An ion pair is
A)an electron and proton
B)a proton and neutron
C)an atom and the electron that was removed from it
D)an atom with an extra electron and an atom that is missing an electron
Answer: C
Q2) The electromagnetic radiation used in tanning beds is
A)visible light
B)infrared light
C)microwaves
D)ultraviolet light
Answer: D
Q3) The half-life of technetium-99m is 6 hours.How many unstable atoms will remain after 12 hours?
A)One sixth of the original amount.
B)One fourth of the original amount.
C)One third of the original amount.
D)Half of the original amount.
Answer: B
To view all questions and flashcards with answers, click on the resource link above.
Page 5
Chapter 4: The X-Ray Circuit
Available Study Resources on Quizplus for this Chatper
152 Verified Questions
152 Flashcards
Source URL: https://quizplus.com/quiz/26352
Sample Questions
Q1) Place the following events leading to the production of x-rays in order,from first to last
I.resistance is adjusted at the rheostat
II.filament is heated
III.filament current is increased
IV.electrons are boiled off filament
A)II,IV,III,I
B)III,II,IV,I
C)I,III,II,IV
D)I,IV,III,II
Q2) The property of a circuit that impedes the flow of electrons is
A)electric current
B)electric potential
C)resistance
D)electrostatics
Q3) The rheostat is found on the
A)primary circuit
B)secondary circuit
C)filament circuit
D)none of the above
To view all questions and flashcards with answers, click on the resource link above. Page 6
Chapter 5: The X-Ray Tube
Available Study Resources on Quizplus for this Chatper
110 Verified Questions
110 Flashcards
Source URL: https://quizplus.com/quiz/26353
Sample Questions
Q1) When the electrons strike the anode target,they all produce x-rays.
A)True
B)False
Q2) Tungsten is used in the cathode filament because it is able to vaporize very easily.
A)True
B)False
Q3) "Sun-tanning" in glass envelopes is caused by
A)the color the tube gets as it loses its resistance to heat over time
B)oil leaking out of the protective housing
C)the breaking of the glass envelope into small pieces of glass
D)the vaporized tungsten from filament deposits that coats the inside of the glass
Q4) There is about 1-2% of ______________ added to the filament to increase thermionic emission.
A)thorium
B)rhenium
C)tungsten
D)copper
To view all questions and flashcards with answers, click on the resource link above.
Chapter 6: X-Ray Production
Available Study Resources on Quizplus for this Chatper
72 Verified Questions
72 Flashcards
Source URL: https://quizplus.com/quiz/26354
Sample Questions
Q1) The discrete emission spectrum typically displays
A)K-characteristic photon energies
B)L-characteristic photon energies
C)all of the above
D)none of the above
Q2) When filament electrons enter the anode target,they interact with
A)outer shell electrons of tungsten atoms
B)inner shell electrons of tungsten atoms
C)outer shell electrons of copper atoms
D)inner shell electrons of copper atoms
Q3) How many HVLs are needed to reduce beam intensity from 600 mR to 300 mR?
A)One.
B)Two.
C)Three.
D)Four.
Q4) The stronger the attraction between the filament electron and the nucleus,the less energy the brems photon has.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 8
Chapter 7: X-Ray Interactions With Matter
Available Study Resources on Quizplus for this Chatper
66 Verified Questions
66 Flashcards
Source URL: https://quizplus.com/quiz/26355
Sample Questions
Q1) The energy of the photoelectron is equal to
A)the binding energy of the orbital electron minus the energy of the incident photon
B)the energy of the incident photon minus the binding energy of the orbital electron
C)the binding energy of the orbital electron plus the energy of the incident photon
D)none of the above
Q2) In reference to patient radiation dose,classical scatter interactions
A)slightly increase dose
B)significantly increase dose
C)have no effect on dose
D)slightly decrease dose
Q3) All Compton scatter photons travel in the direction of the image receptor.
A)True
B)False
Q4) Without differential absorption,the image would be a single shade of gray.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above.
9
Chapter 8: Image Production
Available Study Resources on Quizplus for this Chatper
66 Verified Questions
66 Flashcards
Source URL: https://quizplus.com/quiz/26356
Sample Questions
Q1) In the image intensifier,the photocathode
A)converts remnant radiation to light
B)focuses the electrons
C)converts light to electrons
D)absorbs the energized electrons and produces a brighter image
Q2) Transmission refers to
A)all x-rays in the beam before entering the patient
B)x-rays leaving the patient that did not interact with atoms
C)all x-rays leaving the patient
D)the process of sending the x-ray beam through the patient
Q3) Photoelectric interactions occur only at the lower end of the diagnostic range of photon energies.
A)True
B)False
Q4) In producing a radiographic image,which of the following occurs last?
A)Differential absorption.
B)Quality and quantity of x-ray beam is set at console.
C)Radiation interacts with image receptor.
D)Radiation exits the patient with different energies.
To view all questions and flashcards with answers, click on the resource link above. Page 10
Chapter 9: Image Quality and Characteristics
Available Study Resources on Quizplus for this Chatper
129 Verified Questions
129 Flashcards
Source URL: https://quizplus.com/quiz/26357
Sample Questions
Q1) Radiographic contrast should change based on the anatomy being imaged.
A)True
B)False
Q2) The study of the relationship between the intensity of radiation exposure to the film and the amount of blackness produced after processing (density)is
A)filmometry
B)densitometry
C)sensitometry
D)expousurometry
Q3) An artifact
A)includes over- and underexposure of the image
B)is always due to items imaged that are not part of the anatomy (such as necklaces that were not removed)
C)is an unwanted image seen in a radiograph
D)none of the above
Q4) Failure to remove jewelry from the area being imaged results in
A)a film-screen image artifact
B)a digital image artifact
C)a film-screen image and digital image artifact
To view all questions and flashcards with answers, click on the resource link above. Page 11
Chapter 10: Radiographic Exposure Technique
Available Study Resources on Quizplus for this Chatper
135 Verified Questions
135 Flashcards
Source URL: https://quizplus.com/quiz/26358
Sample Questions
Q1) The inverse square law describes the relationship between _________ and __________.
A)kVp and density
B)mAs and density
C)distance and beam intensity
D)kVp and beam intensity
Q2) As the SID increases,the x-ray photons in the beam become less perpendicular to the object being imaged.
A)True
B)False
Q3) The controlling factor for density when using a film-screen image receptor is A)SID
B)mAs
C)OID
D)image receptor type
Q4) With digital imaging,it is impossible to overexpose the patient to radiation because the computer makes adjustments to the image.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 12
Chapter 11: Scatter Control
Available Study Resources on Quizplus for this Chatper
80 Verified Questions
80 Flashcards
Source URL: https://quizplus.com/quiz/26359
Sample Questions
Q1) When the SID is above or below the focal range you have _________ cutoff.
A)upside-down focused
B)off-level
C)off-center
D)off-focus
Q2) What is the grid ratio if the lead strips are 2.4 mm high,0.02 mm wide,and 0.3 mm apart?
A)5:1.
B)61.
C)8:1.
D)12:1.
Q3) A linear grid
A)has lead strips that cross each other
B)has lead strips that travel in one direction
C)is the most common type of radiographic grid
D)A and C
E)B and C
Q4) Adding a grid or increasing grid ratio results in an increase in patient dose.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 13
Chapter 12: Image Receptors
Available Study Resources on Quizplus for this Chatper
176 Verified Questions
176 Flashcards
Source URL: https://quizplus.com/quiz/26360
Sample Questions
Q1) The fixer solution
A)is acidic
B)is alkaline
C)makes the latent image visible
Q2) With digital imaging,mAs does not control image brightness
A)True
B)False
Q3) Primary workstation displays are used for
A)viewing the image for the first time
B)official image interpretation
C)viewing the digital image at the radiographer's console
D)All of the above
Q4) Postprocessing functions have no effect on the original data set used to create the image.You can always go back to that original image.
A)True
B)False
Q5) It is appropriate to use a higher kVp with digital examinations.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 14
Chapter 13: Exposure Technique Selection
Available Study Resources on Quizplus for this Chatper
63 Verified Questions
63 Flashcards
Source URL: https://quizplus.com/quiz/26361
Sample Questions
Q1) When there is a significant amount of scatter radiation reaching the detector,the exposure time will
A)be shorter than needed
B)be appropriate
C)be longer than needed
Q2) With film-screen imaging using AEC,if an AP thoracic spine is imaged using an outside instead of center detector,the density in the area of interest will be __________________ and the patient will be ________________________.(Assume all other factors are appropriate. )
A)light;underexposed
B)light;overexposed
C)dark;underexposed
D)appropriate;underexposed
Q3) Which of the following is the most critical aspect of successfully performing an examination using AEC?
A)Centering the anatomy of interest over the detector
B)Using the right mA
C)Using the right kVp
D)Setting the best back-up time
To view all questions and flashcards with answers, click on the resource link above.
Page 15
Chapter 14: Image Intensified Fluoroscopy
Available Study Resources on Quizplus for this Chatper
95 Verified Questions
95 Flashcards
Source URL: https://quizplus.com/quiz/26362
Sample Questions
Q1) Which of the following recording systems require the x-ray-beam to be in radiographic mode?
A)Cassette spot filming.
B)Film cameras for spot filming.
C)Cine filming.
D)Flat panel detector.
Q2) Each electron that interacts with the output phosphor results in significantly fewer light photons being produced in comparison with the number of light photons it took to release that electron.
A)True
B)False
Q3) The analog-to-digital converter
A)takes the video (analog)signal and divides it into binary language that the computer "understands."
B)determines the contrast resolution of the system
C)is necessary for the computer to process and display the image
D)all of the above
Q4) When a CCD is exposed to light,it generates and briefly stores light energy.
A)True
B)False
16
To view all questions and flashcards with answers, click on the resource link above.
Chapter 15: Additional Equipment
Available Study Resources on Quizplus for this Chatper
53 Verified Questions
53 Flashcards
Source URL: https://quizplus.com/quiz/26363
Sample Questions
Q1) Linear tomography is used to overcome the limitation that some anatomic areas are difficult to see because they are superimposed by other structures.
A)True
B)False
Q2) Breast imaging is done on this type of dedicated radiographic unit
A)Chest
B)Panorex
C)Mammography
D)Bone densitometry
Q3) The focal spot size of a dedicated mammography unit is _________ than that of a standard x-ray tube,measuring __________________
A)smaller;0.1-0.3 mm
B)smaller;1-3 mm
C)larger;0.1-0.3 mm
D)larger;1-3 mm
Q4) In that the exposure time for a linear tomographic image is long,the mA must be A)low
B)mid-range
C)high
To view all questions and flashcards with answers, click on the resource link above. Page 17
Chapter 16: Computed Tomography
Available Study Resources on Quizplus for this Chatper
136 Verified Questions
136 Flashcards
Source URL: https://quizplus.com/quiz/26364
Sample Questions
Q1) Metal in the area being imaged produces a A)streak artifact
B)ring artifact
C)partial-volume artifact
D)beam-hardening artifact
Q2) With spiral CT imaging,the relationship between slice thickness and table travel during one tube rotation is the A)protocol
B)scan field of view (SFOV)
C)display field of view (DFOV)
D)pitch
Q3) An image with a WW of 200 and a WL of 50 produces an image that displays pixels with CT numbers ranging from
A)-100 to 100
B)-50 to 100
C)-50 to 150
D)200 to 250
Q4) Filtered back projection uses the bowtie filter to reconstruct the CT image.
A)True
B)False
Page 18
To view all questions and flashcards with answers, click on the resource link above.