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

Question

Quizplus · Accepted Answer

Two-blocking occurs when the lower load block (or hook assembly) comes in contact with the upper load block or boom tip, which can happen during hoisting, lowering, or extending the boom. Retracting the boom does not cause two-blocking; instead, it typically moves the boom away from the load or decreases its reach, thereby reducing the risk of two-blocking.

Which of the Following Does Not Lead to Two-Blocking