Which of the following does not lead to two-blocking?
A)riding the headache ball
B)hoisting the load
C)lowering the load
D)extending the boom

Question

Quizplus · Accepted Answer

Two-blocking refers to the condition where the lower load block (or hook assembly) is raised too high and comes into contact with the upper block or boom tip, potentially causing equipment damage or failure. Riding the headache ball (a slang term for the crane's hook or load block) does not inherently lead to two-blocking, as it refers to a person being lifted by the crane, which is unsafe and unrelated to the mechanical process of two-blocking. Hoisting, lowering the load, and extending the boom are all operations that can lead to two-blocking if not carefully monitored.

Which of the Following Does Not Lead to Two-Blocking