If the input signal rises above the setpoint of '17A', shown in the illustration, but remains below the setpoint of '17B', the output from '22A' will __________. Illustration MO-0114

Correct Answer: Option A — indicate a pressure on '67B' equal to the setpoint of '17A'

Pneumatic control and relay circuits function according to setpoint thresholds. When an input pressure exceeds the lower setpoint of component 17A but stays below 17B, the relaying pneumatic logic at 22A outputs a signal representing the activated lower setpoint pressure onto gauge line 67B.