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Sling Types and Load Distribution Flashcards

7 cards from real NCCCO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Sling Types and Load Distribution flashcards as text

  1. A nylon web sling should NOT be used when in contact with:

    Answer: Acids or bleaching agents

    Nylon is degraded by acids and bleaching agents; exposure can drastically reduce its strength and lead to sling failure.

  2. When lifting a load with a four-leg bridle sling, how many legs are assumed to share the load equally per ASME B30.9 guidance?

    Answer: Three legs, with the fourth as backup

    ASME B30.9 states that for a four-leg bridle, only three legs are assumed to carry the load because one leg may go slack due to load geometry variations.

  3. Which condition requires immediate removal of a chain sling from service?

    Answer: Chain elongation exceeding 3% of the original length

    Chain elongation of 3% or more indicates overload or fatigue and is a rejection criterion under ASME B30.9.

  4. What does 'rated capacity' of a sling mean?

    Answer: The maximum working load limit for a specific hitch and angle

    Rated capacity (Working Load Limit) is the maximum load a sling may carry for a specific hitch configuration and sling angle, as specified by the manufacturer.

  5. When selecting a sling for a load with sharp edges, which protective measure is required?

    Answer: Using padding or corner protectors between the sling and load edge

    Sharp edges can cut or abrade slings, so padding or corner protectors must be used to protect the sling and maintain its rated capacity.

  6. A roundsling (endless loop) is being used in a basket hitch with the legs equally loaded. Compared to a choker hitch, the basket hitch provides:

    Answer: Double the vertical hitch capacity

    A basket hitch with vertical legs can support up to twice the vertical hitch rated capacity because both legs share the load.

  7. Which marking is required on all synthetic web slings per ASME B30.9?

    Answer: Manufacturer name, rated load for applicable hitches, material type, and color code

    ASME B30.9 requires synthetic slings to be permanently marked with the manufacturer's name, rated capacity for each hitch type, material, and applicable color code.