Refer to the drawing of a valve motor control circuit (see figure below).
Which one of the following describes the function of the #3 contact?
A. To keep the K3 relay energized after the initiating condition clears.
B. To provide a method for manually energizing the K3 relay.
C. To increase circuit reliability because any one of the three contacts can energize the K3 relay.
D. To ensure the K3 relay can always be deenergized even with the initiating condition present.
Show Answer
Answer: A
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