In cranes with a dynamic lowering system, a light load is allowed to move while a heavy load is held back.

In cranes with a dynamic lowering system, a light load is allowed to move while a heavy load is held back.

• A. True
• B. False
• C. Not sure
• D. N/A

Answer: (A)

Dynamic lowering uses hydraulic control to regulate how fast the load descends, independent of the drum speed. The system applies more resistance for heavier loads, which slows or holds them back to prevent rapid, uncontrolled lowering. With lighter loads, the resistance is reduced, so the load can move more easily under the operator’s control. This arrangement gives safe, controlled lowering: you can let a light load move to its position while heavier loads are restrained to prevent a sudden drop.

Dynamic lowering uses hydraulic control to regulate how fast the load descends, independent of the drum speed. The system applies more resistance for heavier loads, which slows or holds them back to prevent rapid, uncontrolled lowering. With lighter loads, the resistance is reduced, so the load can move more easily under the operator’s control. This arrangement gives safe, controlled lowering: you can let a light load move to its position while heavier loads are restrained to prevent a sudden drop.