10 free CRES practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CRES Practice Test 10Tutor mode
Question 1 of 10
Healthcare Technology Problem Solving
Images on every probe and port intermittently break into noise when the ultrasound cart is rolled over a door threshold, while on-screen text and menus stay normal. Gently tapping the system card cage with an insulated tool reproduces the fault. What is the most likely cause?