If a normally open discrete contact is connected to turn the motor on and run forward, to which two terminals would you connect the contact?

Master the Motor Controls Level 3 Test. Engage with flashcards and detailed multiple-choice questions, complete with hints and thorough explanations. Prepare effectively for your exam!

Multiple Choice

If a normally open discrete contact is connected to turn the motor on and run forward, to which two terminals would you connect the contact?

Explanation:
The idea being tested is how a normally open contact behaves in a control circuit. A normally open contact only conducts when its coil is energized, so you wire it to form a path from the power supply to the motor through the common terminal and the normally open terminal that drives the forward direction. When the relay energizes, that NO path closes and current flows to the motor, making it run forward. So the two terminals you use are the common terminal and the normally open terminal designated for the forward run. In this system those are the common terminal paired with the forward NO terminal. The other options don’t create the proper closed path needed to power the motor in forward.

The idea being tested is how a normally open contact behaves in a control circuit. A normally open contact only conducts when its coil is energized, so you wire it to form a path from the power supply to the motor through the common terminal and the normally open terminal that drives the forward direction. When the relay energizes, that NO path closes and current flows to the motor, making it run forward. So the two terminals you use are the common terminal and the normally open terminal designated for the forward run. In this system those are the common terminal paired with the forward NO terminal. The other options don’t create the proper closed path needed to power the motor in forward.

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