The duration of an x-ray exposure is determined by which control?
A) The timer
B) The line switch
C) The kVp selector
D) The mA selector

Question

Quizplus · Accepted Answer

The timer is the control that determines the duration of an x-ray exposure. It is used to set the length of time that the x-ray tube emits radiation. The other controls, including the line switch, kVp selector, and mA selector, all affect the quality and quantity of the radiation produced, but not the length of time that it is emitted.

The Duration of an X-Ray Exposure Is Determined by Which