🔍 Key Concepts

• Electric motor protection devices and how they react to overloads or faults • Difference between electrical problems (power to the motor) and pneumatic/mechanical problems (air side of the system) • Which components act before the motor turns vs. which only matter after the motor is running

💭 Think About

• Ask yourself: which option would completely prevent the motor from getting power or from starting to turn at all? • Which of these devices is specifically designed to open a circuit when there is an overload or fault in the electrical system? • Which components listed deal mainly with pressure relief or unloading of air, and would more likely affect compressor performance rather than motor starting?

✅ Before You Answer

• Identify which choice is an electrical protection device in the power circuit to the motor • Eliminate options that only affect air pressure control once the compressor is running • Consider normal troubleshooting order: verify power and protection devices before looking at pneumatic controls