Refer to the drawing of a valve motor control circuit (see figure below).
One purpose of the K3 relay is to…
A. hold the valve open after one or both initiating conditions have cleared, even if the reset pushbutton (S1) is depressed.
B. hold the valve open even if one or both initiating conditions have cleared.
C. close the valve as soon as either initiating condition has cleared.
D. close the valve as soon as both initiating conditions have cleared.
Show Answer
Answer: B
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