Which statement about a load test is accurate?

• A. A load test is optional if the crane is new.
• B. A load test involves lifting a light load to test controls.
• C. A load test is performed under supervision only after maintenance.
• D. A controlled test at or near rated capacity to confirm crane control responses, stability, and rigging integrity.

Answer: (D)

A load test is about proving the crane can handle its expected maximum load safely and showing how it behaves under real working conditions. The best description is a controlled test performed at or near the crane’s rated capacity to confirm how the crane’s controls respond, that the machine remains stable during lifting, and that the rigging system stays sound under load. This means checking the hoist and drive controls, braking, limit switches, travel and rotation, as well as overall stability and the condition of slings, hooks, and other rigging gear. Lifting only a light load won’t reveal issues that appear under heavy loads, so that approach isn’t sufficient. While maintenance and inspections can prompt testing, the essential purpose is to verify safe performance at rated capacity, under proper supervision and using correct procedures.