Prepare for the essential 636 Period 3 Motor Final Test with comprehensive flashcards and detailed questions. Access explanations and hints for each question to ace your exam!

Multiple Choice

In a current-type starting relay, the contacts are normally closed.

The starting relay is built to connect the start winding only during the moment of startup. A current-type starting relay uses a coil that energizes when the line current is high, which causes the contacts to close and energize the start winding. As the motor speeds up, the current in the main winding drops, the coil de-energizes, and the contacts open to disconnect the start winding. Because the device is designed to be open when not energized and to close during startup, the contacts are not normally closed. So the statement is not correct.

The starting relay is built to connect the start winding only during the moment of startup. A current-type starting relay uses a coil that energizes when the line current is high, which causes the contacts to close and energize the start winding. As the motor speeds up, the current in the main winding drops, the coil de-energizes, and the contacts open to disconnect the start winding. Because the device is designed to be open when not energized and to close during startup, the contacts are not normally closed. So the statement is not correct.