Red Seal Mobile Crane Operator Practice Exam

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What does the term "outrigger" refer to in crane setup?

Counterweights used to prevent tipping

Extendable arms designed to stabilize the crane during lifting operations

The term "outrigger" specifically refers to extendable arms that are deployed on a mobile crane to increase stability during lifting operations. These components are crucial because they provide a broader base of support, which helps to prevent tipping when the crane is engaged in lifting heavy loads. By extending outwards from the crane's main body, outriggers distribute the load more evenly and enhance the structural integrity of the crane during operation.

This is particularly important when lifting loads that can cause significant lateral forces. The correct deployment of outriggers ensures that the crane can operate safely and effectively, making them a vital part of the setup process before any lifting begins. Other options, while related to crane operation, do not accurately define what outriggers are or their function in stabilizing a crane.

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Hydraulic arms that control the boom tilt

Safety barriers placed around the crane

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