Rigging Fundamentals and Hardware Flashcards

Which type of hook is specifically designed to prevent accidental release of a sling or load during a lift?

Answer: Safety latch hook

Safety latch hooks incorporate a spring-loaded latch that must be manually depressed to open, preventing accidental sling or load release.

When rigging a load with multiple lift points, the load should be picked up using a test lift by raising the load:

Answer: A few inches off the ground to check balance and sling tension before proceeding

A trial lift a few inches off the ground lets the rigger verify load balance, sling tension, and stability before committing to the full lift.

The minimum number of full tucks required for a proper mechanical splice in wire rope is:

Answer: 5

ASME B30.9 requires a minimum of 5 full tucks for a proper mechanical splice in wire rope to achieve full rated capacity.

A turnbuckle used in a rigging assembly should always be:

Answer: Loaded in line (tension) along its axis only

Turnbuckles are rated for axial tension loads only; side-loading or bending a turnbuckle can cause premature failure well below its rated capacity.

What is the purpose of a tag line during a crane lift?

Answer: To control load spin and prevent uncontrolled rotation

Tag lines are used by ground personnel to control load rotation and lateral movement during a lift, keeping the load positioned safely.

When storing wire rope slings, which of the following is the correct practice?

Answer: Coil and hang them on a clean, dry rack away from chemicals and heat

Wire rope slings should be coiled and hung on a clean, dry rack, away from chemicals, excessive heat, and moisture to prevent corrosion and damage.

When a rigging component's identification tag or embossed markings are no longer legible, the correct action is to:

Answer: Remove the component from service immediately

If a rigging component's identification markings are illegible, it cannot be verified for safe use and must be immediately removed from service.