Question

1. what is the maximum percent of the rated capacity of a crane that can be used to lift personnel?

a. 40%
b. 50%
c. 60%
d. 80%

Explanation:

In crane operations (related to engineering safety standards), the maximum percent of a crane's rated capacity allowed for lifting personnel is typically 50% (this is a standard safety regulation in crane operation for personnel lifting to ensure safety and stability).

Answer:

b. 50%