Module 6 Basic rigging

The maximum load weight that a sling is designed to carry is the _____.

• top weight

• carry weight

• rated capacity

• load capacity

Most alloy steel chain slings can be used in temperatures up to _____.

• 200°F (93°C)

• 300°F (149°C)

• 400°F (204°C)

• 500°F (260°C)

When a tattle-tail has been pulled into the jacket of a synthetic sling, the sling most likely has been _____.

• chemically damaged

• overheated

• overloaded

• crushed

If a wire rope sling appears to be damaged, the decision to keep it in service must be made by a _____.

• site supervisor

• district manager

• competent person

• crane operator

Because of the need for increased toughness, shackles for most overhead lifting are made from _____.

• cast steel

• forged steel

• drop iron

• tempered aluminum

Which style of hook is designed to be used on alloy steel chain slings?

• Grab hook

• Eye hook

• Sliding hook

• Short hook

To lift heavy loads, all chain hoists use a(n) _____.

• sprocket set

• anchorage slide

• gear system

• hook retainer

A type of hand-operated winching device that should never be used for vertical overhead lifting is a _____.

• chain hoist

• come-along

• block and tackle

• ratchet lever hoist

Two choker hitches are recommended when lifting a load longer than _____.

• 6 feet (≈2 m)

• 8 feet (≈2.5 m)

• 10 feet (≈3 m)

• 12 feet (≈3.5 m)

If an emergency occurs during a rigging operation, who is allowed to give the emergency stop hand signal?

• Only another crane operator in the vicinity.

• Only a designated signal person.

• Only a qualified rigger who has completed signal training.

• Anyone on the ground who is in site of the crane operator.