Question

question 7/10
what is the primary function of the back - up timer?
prevent over - exposure to the receptor
prevent over - exposure to the patient
ensure adequate receptor exposure
ensure adequate image contrast

Explanation:

The backup timer in imaging - related contexts is mainly to safeguard against excessive radiation exposure to the patient. It acts as a failsafe in case the primary exposure - control mechanisms malfunction.

Answer:

Prevent over - exposure to the patient