Probable Effect Concentration Quotients (PECQS) Practice Test 2026 - Free PECQS Practice Questions and Study Guide

The correct answer is 230 V because this voltage level is commonly associated with residential wiring standards in many regions, particularly in Europe and other areas that follow similar standards. In these contexts, the nominal voltage between conductors for receptacles typically adheres to the 230 V specification for household appliances and devices.

This voltage standard allows for the effective operation of a wide variety of electrical devices while ensuring safety and compatibility. It is designed to provide enough power for everyday usage while minimizing the risk of electrical hazards.

Understanding this voltage level is essential for compliance with electrical codes and for ensuring safe installations in dwelling units.