Which statement is true about load charts?

The statement regarding load charts being specific to different crane brands is correct because load charts provide critical information about the lifting capabilities and operational parameters of a particular crane model. Each manufacturer may construct their cranes differently, resulting in variations in how much weight they can lift and at which distances. This means that knowing the specific load chart for the model being operated is crucial for safe and effective lifting.

Load charts include details such as maximum load capacities for different boom lengths, different angles of the boom, and configurations for various types of lifts. This specificity helps ensure that operators understand the limits of their particular crane, thus preventing accidents due to overloading or incorrect usage.

Other statements are misleading. For example, load charts are not optional; they are essential for safe crane operation. They are not universally applicable, as different types of cranes will have different load capacities and configurations. Lastly, while experienced operators should certainly be well-versed in interpreting load charts, that knowledge is necessary for all operators, regardless of their experience level, as safety is paramount in all lifting operations.