Positioning the bridge and trolley over the load for hoisting is called:

Positioning the bridge and trolley over the load for hoisting is called:

• A. Centering
• B. Aligning
• C. Hooking
• D. Idling

Answer: (A)

Centering is bringing the bridge and trolley to a position so the hoist hook sits directly over the load’s center of gravity. This precise alignment keeps the load balanced and minimizes sideways forces, reducing sway and the chance of tipping once lifting begins. To center, move the bridge and trolley along their tracks until the hook is right above the load, then verify with a small controlled lift or a visual check of balance. The other actions don’t describe this exact step: aligning is a more general notion of getting things in line, hooking means attaching the hook to the load, and idling means not moving at all.

Centering is bringing the bridge and trolley to a position so the hoist hook sits directly over the load’s center of gravity. This precise alignment keeps the load balanced and minimizes sideways forces, reducing sway and the chance of tipping once lifting begins. To center, move the bridge and trolley along their tracks until the hook is right above the load, then verify with a small controlled lift or a visual check of balance. The other actions don’t describe this exact step: aligning is a more general notion of getting things in line, hooking means attaching the hook to the load, and idling means not moving at all.