Red Seal Appliance Service Technician Practice Exam

What component of an appliance is responsible for converting electrical energy into mechanical energy?

1. The thermostat

2. The motor

3. The capacitor

4. The control board

The correct answer is: The motor

The motor is the component of an appliance that converts electrical energy into mechanical energy. This conversion is fundamental to the operation of many appliances, as it enables them to perform physical tasks. For instance, in a washing machine, the motor spins the drum to agitate the clothes; in a refrigerator, it drives the compressor to circulate refrigerant. The motor operates based on electromagnetic principles, where electric current passes through windings to create a magnetic field, which then generates motion. This makes the motor essential for appliances that require moving parts to function properly, such as blenders, fans, and vacuum cleaners. The other components listed serve different purposes within an appliance. The thermostat regulates temperature, ensuring the appliance operates within a desired range. The capacitor stores electrical energy and can help start the motor or improve its efficiency but does not convert energy itself. The control board manages and coordinates the appliance's functions and settings, directing the operation of various components based on user input or preprogrammed settings.