What must a hydraulic crane have to lift a man basket?

What must a hydraulic crane have to lift a man basket?

• A. Load cell
• B. Boom length indicator
• C. Outriggers level indicator
• D. Tilt sensor

Answer: (B)

The key idea is that the safe lifting capacity of a hydraulic crane depends on how far the boom is extended. The boom length indicator gives the real-time measurement of the current boom extension, which lets the operator read the correct part of the crane’s load rating chart and ensure the lift, including the man basket and personnel, stays within safe limits for that reach. Other devices like a load cell, an outriggers level indicator, or a tilt sensor contribute to safety, but they don’t by themselves establish whether the lift is permitted at the exact reach. Knowing the exact boom length is what makes a personnel lift calculable and compliant.

The key idea is that the safe lifting capacity of a hydraulic crane depends on how far the boom is extended. The boom length indicator gives the real-time measurement of the current boom extension, which lets the operator read the correct part of the crane’s load rating chart and ensure the lift, including the man basket and personnel, stays within safe limits for that reach. Other devices like a load cell, an outriggers level indicator, or a tilt sensor contribute to safety, but they don’t by themselves establish whether the lift is permitted at the exact reach. Knowing the exact boom length is what makes a personnel lift calculable and compliant.