Millwright Level 1 Practice Exam

What classification of ladders is suitable for construction purposes?

1. Grade 1

2. Grade 2

3. Grade 3

4. Grade 4

The correct answer is: Grade 3

The classification of ladders for construction purposes is critical for ensuring safety and durability during tasks that often involve significant weight and stress. Grade 1 ladders are the strongest and are often rated for industrial use, making them suitable for heavy-duty tasks. They can safely support heavier loads than the lower grades, which is essential on construction sites where ladders experience more demanding conditions. Grade 2 ladders are intended for lighter duty applications and are not constructed to withstand the same level of load as Grade 1 ladders, making them less suitable for the rigorous environments found in construction. Grade 3 ladders are designed for light household tasks and cannot support the greater weight requirements typically needed on construction sites. Grade 4 ladders, if available, would be for very minimal use and would not be safe for construction purposes where stability and load-bearing capabilities are critical. Thus, a Grade 1 ladder is the appropriate choice for construction, as it provides the necessary strength and stability to safely complete construction tasks.