California Fluoroscopy Supervisor and Operator Final
Exam 2024 Question and Answers
The normal view distance for binocular vision is
a. 1-2 in
b. 4-8 in
c. 12-15 in
d. 16-20 in
c. 12-15 in
In general, during conventional fluoroscopic examinations the preferred technique is:
a. High kVp, low mA
b. High kVp, low mAs
c. Low kVp, high mAs
d. Low kVp, high mA
a. High kVp, low mA
Which of the following properties are associated with cones rather than rods:
a. Contrast perception
b. Color detection
c. Visual acuity
d. All of the above
d. All of the above
,How long does it take for the fluoroscopic table to move from the horizontal to the vertical position?
a. 5-15 sec
b. 10-20 sec
c. 25-30 sec
d. 30-40 sec
c. 25-30 sec
Visible light:
a. Is not part of the electromagnetic spectrum
b. Has higher energy than x-rays
c. Is the only part of the electromagnetic spectrum we can see
d. Has lower energy than radiowaves
c. Is the only part of the electromagnetic spectrum we can see
Most modern image intensifiers use an input fluorescent screen layer that is composed of:
a. Calcium tungstate
b. Cesium iodide
c. Barium lead sulfate
d. Zinc cadmium sulfide
b. Cesium iodide
,The conversion of light energy into a proportional amount of electrons is accomplished by a/an:
a. Electron gun
b. Photomultiplier
c. Electrostatic lens
d. Photocathode
d. Photocathode
The acceleration of the electron stream inside the image intensifier requires a potential difference
(voltage) of
a. 25 volts
b. 50 volts
c. 25 kilovolts
d. 50 kilovolts
c. 25 kilovolts
The ouput screen of an image intesifier functions to convert ___ into ____ :
a. Light, electrons
b. Light, x-rays
c. Electrons, light
d. X-rays, electrons
c. Electrons, light
The target to panel and target to skin distance shall not be less than:
, a. 18 in
b. 35 cm
c. 40 in
d. 12 in
d. 12 in
The squared ratio of input screen to output screen is called:
a. Minification ratio
b. Flux gain
c. Magnification ratio
d. Conversion ratio
a. Minification ratio
A 9" input screen and a 1" output screen increases brightness:
a. 9 times
b. 18 times
c. 40 times
d. 81 times
d. 81 times
The point in the image intensifier tube where the electrons cross:
a. Optical point
Exam 2024 Question and Answers
The normal view distance for binocular vision is
a. 1-2 in
b. 4-8 in
c. 12-15 in
d. 16-20 in
c. 12-15 in
In general, during conventional fluoroscopic examinations the preferred technique is:
a. High kVp, low mA
b. High kVp, low mAs
c. Low kVp, high mAs
d. Low kVp, high mA
a. High kVp, low mA
Which of the following properties are associated with cones rather than rods:
a. Contrast perception
b. Color detection
c. Visual acuity
d. All of the above
d. All of the above
,How long does it take for the fluoroscopic table to move from the horizontal to the vertical position?
a. 5-15 sec
b. 10-20 sec
c. 25-30 sec
d. 30-40 sec
c. 25-30 sec
Visible light:
a. Is not part of the electromagnetic spectrum
b. Has higher energy than x-rays
c. Is the only part of the electromagnetic spectrum we can see
d. Has lower energy than radiowaves
c. Is the only part of the electromagnetic spectrum we can see
Most modern image intensifiers use an input fluorescent screen layer that is composed of:
a. Calcium tungstate
b. Cesium iodide
c. Barium lead sulfate
d. Zinc cadmium sulfide
b. Cesium iodide
,The conversion of light energy into a proportional amount of electrons is accomplished by a/an:
a. Electron gun
b. Photomultiplier
c. Electrostatic lens
d. Photocathode
d. Photocathode
The acceleration of the electron stream inside the image intensifier requires a potential difference
(voltage) of
a. 25 volts
b. 50 volts
c. 25 kilovolts
d. 50 kilovolts
c. 25 kilovolts
The ouput screen of an image intesifier functions to convert ___ into ____ :
a. Light, electrons
b. Light, x-rays
c. Electrons, light
d. X-rays, electrons
c. Electrons, light
The target to panel and target to skin distance shall not be less than:
, a. 18 in
b. 35 cm
c. 40 in
d. 12 in
d. 12 in
The squared ratio of input screen to output screen is called:
a. Minification ratio
b. Flux gain
c. Magnification ratio
d. Conversion ratio
a. Minification ratio
A 9" input screen and a 1" output screen increases brightness:
a. 9 times
b. 18 times
c. 40 times
d. 81 times
d. 81 times
The point in the image intensifier tube where the electrons cross:
a. Optical point
