10 free CEM practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CEM Practice Test 3Tutor mode
Question 1 of 10
Building Automation, Controls and Artificial Intelligence Systems
A proportional-only discharge-air controller on a laboratory air handler holds 55°F at light load but settles at a steady 57°F during peak cooling, even though the valve is not fully open. Which change will eliminate this persistent deviation?