Which component is described to increase MJ-1's lifting capacity when using attachments?

• A. 2200lbs
• B. Extension Lift Arm
• C. Bomb Support Roller
• D. Side Loader

Answer: (B)

The lifting capacity when you’re using attachments is increased by a component that changes the lever geometry and how the load is supported. An extension lift arm is designed to extend the lift apparatus, which alters the leverage and load distribution so the system can handle heavier loads in conjunction with attachments. By lengthening the arm, the load can be positioned in a way that keeps the center of gravity within the machine’s stability envelope while maximizing the effective leverage of the hydraulic lifting system. This combination of modified reach and improved load alignment is what boosts the practical lifting capacity when attachments are in use. The other options don’t provide that mechanism: a fixed weight rating isn’t a component, and bomb support roller or side loader are attachments/tools that don’t inherently increase the lift capacity.