Unlocking Success: The Ultimate Guide to
the California Fluoroscopy Test 2025 -
Comprehensive Exam Questions, Verified
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An image intensifiers photocathode causes ___ to be given off in direct proportion to the
intensity of the fluorescent light:
a. remnant radiation
b. electrons
c. x-rays
d. light photons - anselectrons
What fluoroscopic television system device decodes the video signal into a visible image?
a. Vidicon camera
b. Camera control unit
c. Television monitor
d. Electron gun - ansTelevision Monitor
Which of the following materials are used in the construction of a fluoroscopic tabletop?
1. Lead
2. Aluminum
3. Bakelite
4. Carbon fiber - ans2, 3, and 4
Geometric factors in the shape of the image intensification tube
b. Focal-film-distance (FFD)
c. Object-to-image distance (OID)
d. Minification gain - ans...
If the entrance skin dose is measured from the surface of the tabletop, the x-ray source is
located:
a. either over or under the table
b. under the table
c. over the table
d. not enough information provided - ansb. Under the table
The mottle level of an image can be adjusted by:
1. changing mA
2. changing kVp
3. changing the exposure factors
4. increasing the number of available x-ray photons - ansAll of the above
During a fluoroscopic exam, the main source of scattered radiation is produced from:
a. the patient
b. x-ray source
c. table top
d. leakage radiation - ansthe patient
Excessive lighting in the fluoroscopy room:
a. Helps to perceive a dim image as brighter
b. Helps to properly adjust the overall luminance of the TV image
c. Enhances visualization of a black and white TV image
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d. May result in increasing the technical operating factors - ansMay result in increasing the
technical operating factors
Suitable gonad shields must be used:
a. Whenever gonads are within the useful x-raybeam
b. When shielding of gonads does not interfere with the diagnosis
c. On all potentially procreative patients
d. At all times - ansWhen shielding of gonads does not interfere with the diagnosis
Which of the following are true concerning cine film?
1. Available film sizes are: 70 mm, 100 mm, and 110 mm
2. The larger the film size the better the image quality
3. Nearly all cine-fluorography exams involve studies of the GI system
4. Delivers approximately the same dose as routine photospot image recording - ans2 only
The exposure rate at the tabletop may not exceed five rads per minute except:
1. when using the ABC on large patients
2. during magnification mode
3. where higher exposure rates are allowed - ansb. 1, 2 and 3 only
Images produced with photo spot film cameras ___ spot films taken with conventional
cassettes.
1. use a higher mA than
2. require about 1/2 to 1/3 the dose of
3. exhibit superior image quality compared to - ansrequire about 1/2 to 1/3 the dose
The ability of an imaging system to differentiate small objects that are closely spaced as
separate objects is referred to as:
a. Differentiation
b. Resolution
c. Statistical fluctuation
d. Detector contrast - ansb. Resolution
The photoconductive target in a television camera pick-up tube:
a. Conducts electrons across to the target
b. Allows a proportional electron charge to be generated at a particular position
c. Creates a video signal
d. Creates an electronic current which is converted into a video image
. - ansAllows a proportional electron charge to be generated at a particular position
Size distortion is primarily caused by:
a. Focal-film-distance (FFD)
b. Geometric factors in the shape of the image intensification tube
c. Minification gain
d. Object-to-image distance (OID) - ansObject-to-image distance (OID)
The overall luminescence of the TV image may be properly adjusted by:
1. increasing room lighting
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2. adjusting the contrast control button on the TV monitor
3. adjusting the brightness control button on the TV monitor - ans2 and 3 only
Which of the following statements is true concerning fluoroscopic grids?
a. Reduces scattered radiation produced in the image intensifier
b. The typical grid ratio is 12:1
c. High ratio grids are preferred
d. Located between the patient and input layer of the image intensifier - ansLocated between
the patient and input layer of the image intensifier
One of the most important actions a fluoroscopist can take to avoid unnecessary radiation
exposure to the patient is to use appropriate:
a. Illumination
b. Primary beam filtration
c. Collimation
d. Protective lead curtains - ansCollimation
The increase in effective brightness due to the size reduction of the output image size is
referred to as:
a. Total gain
b. Minification gain
c. Output gain
d. Electronic gain - ansb. Minification gain
In a TV camera, the proportional electron charge is converted into a proportional voltage
which is sent to the:
a. Camera control unit
b. Electron gun
c. TV monitor
d. Output phosphor - ansCamera control unit
The greatest limiting factor concerning resolution for fluoroscopic systems is the:
a. Output phosphor
b. Video monitor
c. Input phosphor
d. TV camera - ansVideo monitor
Since the Bucky tray cover is directly in line with the fluoroscopists gonads, the opening
must be automatically covered with ___ equivalent material.
a. 2.5 mm aluminum
b. 2.5 mm lead
c. 0.25 mm aluminum
d. 0.25 mm lead - ans0.25 mm lead
What percentage of incident photons will emerge unaffected by the patients tissues?
a. 50%
b. 10%
c. 1%
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d. 5%
. - ans5%
The primary purpose of protective drapes or sliding panels is to:
1. Reduce scatter to the patient
2. Reduce scatter to the operator
3. Reduce scatter to the image intensifier
4. Reduce radiation coming primarily from the patient - ans2 and 4
The components of the closed-circuit television system are:
1. vidicon camera
2. imaging intensifier
3. camera control unit
4. television monitor - ans1, 3 and 4 only
For fluoroscopic installations, the primary barrier is considered to be the:
1. Floor
2. Ceiling
3. Walls
4. Image intensifier assembly - ans4 only
The component in an image intensifier that regulates or changes the amount of magnification
in the virtual image is the:
a. Accelerating anode
b. Electrostatic lens
c. Magnifying lens
d. Focusing cup
. - ansElectrostatic lens
Remnant, exit, or imaging forming radiation consists of:
1. Interacting photons
2. Non-interacting photons
3. Small-angle scattered photons
4. large-angle scattered photons - ans2 and 3
The mottle level of an image can be adjusted by:
1. changing mA
2. changing kVp
3. changing the exposure factors
4. increasing the number of available x-ray photons - ansAll of the above
Why is it important to coordinate the video signal between the TV camera and the TV
monitor?
a. To amplify the video signal appropriately
b. To avoid unnecessary screen lag in the television picture
c. To avoid unnecessary flicker in the television picture
the California Fluoroscopy Test 2025 -
Comprehensive Exam Questions, Verified
Answers, and Complete Solutions for A+
Mastery! Multiple Choices With 100%
Correct Solutions. Already Graded A+
An image intensifiers photocathode causes ___ to be given off in direct proportion to the
intensity of the fluorescent light:
a. remnant radiation
b. electrons
c. x-rays
d. light photons - anselectrons
What fluoroscopic television system device decodes the video signal into a visible image?
a. Vidicon camera
b. Camera control unit
c. Television monitor
d. Electron gun - ansTelevision Monitor
Which of the following materials are used in the construction of a fluoroscopic tabletop?
1. Lead
2. Aluminum
3. Bakelite
4. Carbon fiber - ans2, 3, and 4
Geometric factors in the shape of the image intensification tube
b. Focal-film-distance (FFD)
c. Object-to-image distance (OID)
d. Minification gain - ans...
If the entrance skin dose is measured from the surface of the tabletop, the x-ray source is
located:
a. either over or under the table
b. under the table
c. over the table
d. not enough information provided - ansb. Under the table
The mottle level of an image can be adjusted by:
1. changing mA
2. changing kVp
3. changing the exposure factors
4. increasing the number of available x-ray photons - ansAll of the above
During a fluoroscopic exam, the main source of scattered radiation is produced from:
a. the patient
b. x-ray source
c. table top
d. leakage radiation - ansthe patient
Excessive lighting in the fluoroscopy room:
a. Helps to perceive a dim image as brighter
b. Helps to properly adjust the overall luminance of the TV image
c. Enhances visualization of a black and white TV image
,Unlocking Success: The Ultimate Guide to
the California Fluoroscopy Test 2025 -
Comprehensive Exam Questions, Verified
Answers, and Complete Solutions for A+
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Correct Solutions. Already Graded A+
d. May result in increasing the technical operating factors - ansMay result in increasing the
technical operating factors
Suitable gonad shields must be used:
a. Whenever gonads are within the useful x-raybeam
b. When shielding of gonads does not interfere with the diagnosis
c. On all potentially procreative patients
d. At all times - ansWhen shielding of gonads does not interfere with the diagnosis
Which of the following are true concerning cine film?
1. Available film sizes are: 70 mm, 100 mm, and 110 mm
2. The larger the film size the better the image quality
3. Nearly all cine-fluorography exams involve studies of the GI system
4. Delivers approximately the same dose as routine photospot image recording - ans2 only
The exposure rate at the tabletop may not exceed five rads per minute except:
1. when using the ABC on large patients
2. during magnification mode
3. where higher exposure rates are allowed - ansb. 1, 2 and 3 only
Images produced with photo spot film cameras ___ spot films taken with conventional
cassettes.
1. use a higher mA than
2. require about 1/2 to 1/3 the dose of
3. exhibit superior image quality compared to - ansrequire about 1/2 to 1/3 the dose
The ability of an imaging system to differentiate small objects that are closely spaced as
separate objects is referred to as:
a. Differentiation
b. Resolution
c. Statistical fluctuation
d. Detector contrast - ansb. Resolution
The photoconductive target in a television camera pick-up tube:
a. Conducts electrons across to the target
b. Allows a proportional electron charge to be generated at a particular position
c. Creates a video signal
d. Creates an electronic current which is converted into a video image
. - ansAllows a proportional electron charge to be generated at a particular position
Size distortion is primarily caused by:
a. Focal-film-distance (FFD)
b. Geometric factors in the shape of the image intensification tube
c. Minification gain
d. Object-to-image distance (OID) - ansObject-to-image distance (OID)
The overall luminescence of the TV image may be properly adjusted by:
1. increasing room lighting
,Unlocking Success: The Ultimate Guide to
the California Fluoroscopy Test 2025 -
Comprehensive Exam Questions, Verified
Answers, and Complete Solutions for A+
Mastery! Multiple Choices With 100%
Correct Solutions. Already Graded A+
2. adjusting the contrast control button on the TV monitor
3. adjusting the brightness control button on the TV monitor - ans2 and 3 only
Which of the following statements is true concerning fluoroscopic grids?
a. Reduces scattered radiation produced in the image intensifier
b. The typical grid ratio is 12:1
c. High ratio grids are preferred
d. Located between the patient and input layer of the image intensifier - ansLocated between
the patient and input layer of the image intensifier
One of the most important actions a fluoroscopist can take to avoid unnecessary radiation
exposure to the patient is to use appropriate:
a. Illumination
b. Primary beam filtration
c. Collimation
d. Protective lead curtains - ansCollimation
The increase in effective brightness due to the size reduction of the output image size is
referred to as:
a. Total gain
b. Minification gain
c. Output gain
d. Electronic gain - ansb. Minification gain
In a TV camera, the proportional electron charge is converted into a proportional voltage
which is sent to the:
a. Camera control unit
b. Electron gun
c. TV monitor
d. Output phosphor - ansCamera control unit
The greatest limiting factor concerning resolution for fluoroscopic systems is the:
a. Output phosphor
b. Video monitor
c. Input phosphor
d. TV camera - ansVideo monitor
Since the Bucky tray cover is directly in line with the fluoroscopists gonads, the opening
must be automatically covered with ___ equivalent material.
a. 2.5 mm aluminum
b. 2.5 mm lead
c. 0.25 mm aluminum
d. 0.25 mm lead - ans0.25 mm lead
What percentage of incident photons will emerge unaffected by the patients tissues?
a. 50%
b. 10%
c. 1%
, Unlocking Success: The Ultimate Guide to
the California Fluoroscopy Test 2025 -
Comprehensive Exam Questions, Verified
Answers, and Complete Solutions for A+
Mastery! Multiple Choices With 100%
Correct Solutions. Already Graded A+
d. 5%
. - ans5%
The primary purpose of protective drapes or sliding panels is to:
1. Reduce scatter to the patient
2. Reduce scatter to the operator
3. Reduce scatter to the image intensifier
4. Reduce radiation coming primarily from the patient - ans2 and 4
The components of the closed-circuit television system are:
1. vidicon camera
2. imaging intensifier
3. camera control unit
4. television monitor - ans1, 3 and 4 only
For fluoroscopic installations, the primary barrier is considered to be the:
1. Floor
2. Ceiling
3. Walls
4. Image intensifier assembly - ans4 only
The component in an image intensifier that regulates or changes the amount of magnification
in the virtual image is the:
a. Accelerating anode
b. Electrostatic lens
c. Magnifying lens
d. Focusing cup
. - ansElectrostatic lens
Remnant, exit, or imaging forming radiation consists of:
1. Interacting photons
2. Non-interacting photons
3. Small-angle scattered photons
4. large-angle scattered photons - ans2 and 3
The mottle level of an image can be adjusted by:
1. changing mA
2. changing kVp
3. changing the exposure factors
4. increasing the number of available x-ray photons - ansAll of the above
Why is it important to coordinate the video signal between the TV camera and the TV
monitor?
a. To amplify the video signal appropriately
b. To avoid unnecessary screen lag in the television picture
c. To avoid unnecessary flicker in the television picture
