Which statement correctly describes the testing requirements for a custom fabricated lifting beam?

Which statement correctly describes the testing requirements for a custom fabricated lifting beam?

• A. Be designed by an engineer and stamped with rated capacity, but no test lift is required.
• B. Be stamped with rated capacity and be tested at 125%.
• C. Be designed by an engineer, stamped with rated capacity, and be tested at 125%.
• D. Be designed by an engineer and tested at 150%.

Answer: (C)

The main idea here is that a custom fabricated lifting beam must be engineered, stamped with its rated capacity, and proven with a 125% load test. An engineer designs the beam to ensure the geometry, welds, material, and overall load path are safe for the intended use. Stamping communicates the maximum safe working load to riggers and inspectors. The 125% test validates that the beam can withstand more than its rated load under real conditions, helping catch hidden weaknesses before it’s put into service. The other descriptions miss at least one of these elements—without the engineering design, the rating, or the required test, the beam isn’t verified for safe use.

The main idea here is that a custom fabricated lifting beam must be engineered, stamped with its rated capacity, and proven with a 125% load test. An engineer designs the beam to ensure the geometry, welds, material, and overall load path are safe for the intended use. Stamping communicates the maximum safe working load to riggers and inspectors. The 125% test validates that the beam can withstand more than its rated load under real conditions, helping catch hidden weaknesses before it’s put into service. The other descriptions miss at least one of these elements—without the engineering design, the rating, or the required test, the beam isn’t verified for safe use.