New York State Master Electrician Practice Exam

What is the preferred means of supplying power for receptacle outlets in kitchen areas within a dwelling unit?

1. Single branch circuit

2. 20A small appliance branch circuits

3. Dedicated circuit only

4. Shared branch circuits

The correct answer is: 20A small appliance branch circuits

The preferred means of supplying power for receptacle outlets in kitchen areas is through 20A small appliance branch circuits. This requirement is rooted in the National Electrical Code (NEC), which recognizes that kitchens are high-demand areas due to the use of appliances such as microwaves, toasters, and coffee makers. The use of 20A small appliance branch circuits ensures that these outlets can handle the load of multiple appliances without overloading the circuit. Unlike standard 15A circuits, which may not support the combined load of several kitchen devices, a 20A circuit provides an added margin of safety and capacity. This is particularly important in kitchens where multiple appliances may be used simultaneously. Additionally, the NEC specifies that at least two separate 20A small appliance branch circuits should be provided for receptacles designated for kitchen countertop areas. This helps prevent circuit overload and reduces the risk of tripping breakers or potential electrical hazards. In contrast, while a single branch circuit, dedicated circuits, and shared branch circuits might serve functions elsewhere in the home, they do not offer the same level of support and safety needed for the specific demands of a kitchen environment. A dedicated circuit is typically for single large appliances, and shared circuits are not recommended in high-demand areas like