Crane with a dynamic lowering system allows a light load to move while a heavy load is held back.

Crane with a dynamic lowering system allows a light load to move while a heavy load is held back.

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

Answer: (A)

Dynamic lowering controls how a load descends by using a motor-driven drum and a braking system to regulate speed. The system can apply a controlled lowering torque that depends on the load, so a lighter load requires less torque to move than a heavier one. When a lighter load is allowed to move, the heavier load can be held back by the brake or by the motor’s torque limit, preventing it from moving. This means you can have a light load descent under control while a heavier load remains stationary. Therefore, the statement is true.

Dynamic lowering controls how a load descends by using a motor-driven drum and a braking system to regulate speed. The system can apply a controlled lowering torque that depends on the load, so a lighter load requires less torque to move than a heavier one. When a lighter load is allowed to move, the heavier load can be held back by the brake or by the motor’s torque limit, preventing it from moving. This means you can have a light load descent under control while a heavier load remains stationary. Therefore, the statement is true.