Question 246General Subjects - 1st Asst/Chief

70% to pass

While calibrating a 4-20 mA electronic, or a 3-15 PSI pneumatic controller, with a process output of 50-250 PSI, what is the controller span/range you are dealing with?

AOutput process range is 0-250 PSI.

BOutput process span is 200 PSI.

CController input ranges are 0-40 mA and 0-15 PSI.

DController process output span is 0-250 PSI.

AI Explanation

The correct answer is B) Output process span is 200 PSI. The explanation is as follows: 1. The process output range is 50-250 PSI, which means the process span or range is 200 PSI (250 PSI - 50 PSI = 200 PSI). 2. This is the correct answer because the question is asking about the controller span/range, which is determined by the process output range. 3. The other options are incorrect because A) is only the upper limit of the process range, C) describes the controller input ranges which are not specified in the question, and D) is the full process output range, not the span. 4. The correct answer is the process output span of 200 PSI.