# Which of the following describes the etiology of cone-cutting?
A. Inadequate exposure time
B. Excessive mA
C. Excessive kVp
D. Incorrect source-object distance
E. Incorrect placement of X-ray machine
The correct answer is E. Incorrect placement of X Ray machine.
Cone-cutting occurs when the X-ray machine is not lined up properly with the X-ray sensor or film.
The film or sensor should be placed perpendicular to the X-ray
collimator to ensure that all of the necessary information is picked
up.
External devices are often used to ensure that the film/sensor are
perpendicular to the X-ray collimator.
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