Exam 17: Rigging

A __________ hook has a narrow throat so that it will grab a link in the chain and not slip.

All synthetic slings have __________ embedded in the material that when exposed mean the sling must be taken out of service.

Which of the following is not required to be on a sling's manufacturer's tag?

The crane operator receives instructions by radio or hand signals only from the __________.

Which of the following is not a common type of core used in wire ropes?

OSHA requires that all chain slings be inspected by a trained "competent person" at least once a __________.

__________ are used with wire ropes and synthetic slings to protect the sling from sharp corners on the load.

If blocking is needed to support the load at its new location, it should be prepared __________.

When working with wire ropes, it is the __________ responsibility to obtain and follow the proper inspection criteria for each application inspected.

The lay of a rope affects its operational characteristics. __________ lay is more fatigue resistant and abrasion resistant.

The greatest use of cranes and rigging in residential construction is in lifting __________ into place.

Explain the advantages synthetic slings have over wire ropes.

With wire ropes, a __________ fault is caused by the sudden release of tension and the resulting rebound of the rope.

The length along the rope that a strand makes one complete spiral around the rope core is called the __________.

Explain the disadvantages of synthetic slings in relation to wire ropes.

With wire ropes, a __________ break occurs when a wire breaks under a tensile load exceeding its strength.

A light line attached to a load to control it by hand is called a(n) __________.

A __________ hook has an eye at a right angle to the plane of the hook.

The amount of weight the manufacturer has specified as the maximum load on a sling is called the rated __________

Explain why a sling should not be used if the manufacturer's tag is not readable or is missing.