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CALIFORNIA RADIOGRAPHY AND FLUOROSCOPY SUPERVISOR AND OPERATOR PERMIT / CALIFORNIA FLUOROSCOPY SUPERVISOR AND OPERATOR PRACTICE EXAM 150 QUESTIONS AND CORRECT ANSWERS.$21.99
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CALIFORNIA RADIOGRAPHY AND FLUOROSCOPY SUPERVISOR AND OPERATOR PERMIT / CALIFORNIA FLUOROSCOPY SUPERVISOR AND OPERATOR PRACTICE EXAM 150 QUESTIONS AND CORRECT ANSWERS.
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Course
CALIFORNIA RADIOGRAPHY AND FLUOROSCOPY SUPERVISOR
Institution
CALIFORNIA RADIOGRAPHY AND FLUOROSCOPY SUPERVISOR
CALIFORNIA RADIOGRAPHY AND FLUOROSCOPY SUPERVISOR AND OPERATOR PERMIT / CALIFORNIA FLUOROSCOPY SUPERVISOR AND OPERATOR PRACTICE EXAM 150 QUESTIONS AND CORRECT ANSWERS.
CALIFORNIA RADIOGRAPHY AND FLUOROSCOPY SUPERVISOR
AND OPERATOR PERMIT / CALIFORNIA FLUOROSCOPY
SUPERVISOR AND OPERATOR PRACTICE EXAM 150 QUESTIONS
AND CORRECT ANSWERS.
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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-d. 81 times
The point in the image intensifier tube where the electrons cross:
a. Optical point
b. Electronic focal point
c. Input focal point
d. Output focal point - ANSWER-b. Electronic focal point
In order to prevent light from scattering back to the photocathode intensifier, a
thin sheet of aluminum is placed onto:
a. Input phosphor
b. Photocathode
c. Output phosphor
d. Output focal spot - ANSWER-c. Output phosphor
Which of the following could be used to increase brightness gain?
a. A higher x-ray beam intensity
b. Decrease minification ratio
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