Millwright Level 1 Practice Exam

Which is the correct order of the six colors for power load strength from lowest to highest?

1. Grey, Brown, Green, Yellow, Red, Purple

2. Brown, Grey, Yellow, Green, Red, Purple

3. Grey, Green, Brown, Yellow, Red, Purple

4. Grey, Brown, Green, Red, Yellow, Purple

The correct answer is: Grey, Brown, Green, Yellow, Red, Purple

In the context of identifying power load strength, the correct order of colors reflects a systematic way to categorize and understand electrical load capacities. The chosen sequence of colors starts with grey, which indicates the lowest load strength and progresses through various colors, culminating in purple, which signifies the highest load strength. This gradient often corresponds to standardized industry practices, facilitating communication and safety among technicians and engineers. For example, grey typically represents a minimal load, making it a starting point for understanding how much electrical load can be safely and effectively handled. As one moves through the colors—brown, green, yellow, and red—there is a clear escalation in load capability, culminating in purple, which designates the maximum load strength. This ordered system is crucial for proper installation, maintenance, and troubleshooting in millwright and electrical work, ensuring that components are matched appropriately to their load specifications. Such color coding is vital in preventing overload situations that could lead to equipment damage or safety hazards. The correct arrangement of these colors enhances clarity in training and operational contexts, thereby supporting effective maneuvering of power systems in industrial settings.