Some circuits employ the use of normally open auxiliary contacts to prevent motor 2 from starting before motor 1, and motor 3 cannot start before motor2. These normally open auxiliary contacts that control the starting sequence are often called ____ contacts.
A) automatic
B) permissive
C) energizing
D) overload

Question

Quizplus · Accepted Answer

Permissive contacts are used in control circuits to ensure certain conditions are met before allowing an operation to proceed, such as ensuring one motor starts before another in a sequence.

Some Circuits Employ the Use of Normally Open Auxiliary Contacts