Massachusetts Hoisting License Practice Test 2025 – Complete Exam Prep Resource

Hooks and shackles used in hoisting and lifting applications should be made from drop forged steel to ensure safety. Drop forged steel is incredibly strong and has a high tensile strength, making it suitable for heavy lifting tasks. The forging process enhances the structural integrity of the metal, reducing the likelihood of failure under load.

Drop forged steel also has good fatigue resistance, which is essential for equipment that will undergo repetitive loading and unloading cycles. This material can withstand harsh environmental conditions, resist wear, and maintain structural performance over time, making it reliable for securing loads.

In contrast, aluminum alloy, while light, does not possess the same strength characteristics as drop forged steel, which could lead to safety hazards in lifting operations. Plastic composites lack the necessary durability and strength for heavy lifting, and cast iron, while it can be strong, is brittle and can fracture under impact or stress, making it unsuitable for hoisting applications.