Refer to the drawing of a motor and its control circuit (see figure below).
Note: Relay contacts are shown open/closed according to the standard convention for control circuit drawings.
The motor has been idle for several days when it is decided to start the motor.
What is the status of the starting resistors before and after the motor START pushbutton is depressed?
A. Initially bypassed; bypass is removed immediately after the START pushbutton is depressed.
B. Initially bypassed; bypass is removed following a preset time delay after the START pushbutton is depressed.
C. Initially inserted in the motor circuit; bypassed immediately after the START pushbutton is depressed.
D. Initially inserted in the motor circuit; bypassed following a preset time delay after the START pushbutton is depressed.
Show Answer
Answer: D
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