The boom falls is secured to a ______ fastened to the back end of the crane-body frame.

Prepare for the California Structural Steel Contractor (C-51 License) Exam. Study with flashcards and multiple-choice questions with hints and explanations. Get ready to succeed!

Multiple Choice

The boom falls is secured to a ______ fastened to the back end of the crane-body frame.

Explanation:
The boom falls need a strong, fixed anchor point on the crane to keep the hoisting lines under control and out of the way when the crane is moving or the boom is stowed. That anchor point is a gantry—a rigid framework fastened to the back end of the crane body. The gantry provides a sturdy, stable attachment for the boom falls, ensuring the lines stay secure and don’t snag or whip during operation. A jib is a different extension on some cranes, used to reach further; the counterweight is for balance, not a securing point for the lines; and an A-frame is another structural form, not the standard anchor for the boom falls.

The boom falls need a strong, fixed anchor point on the crane to keep the hoisting lines under control and out of the way when the crane is moving or the boom is stowed. That anchor point is a gantry—a rigid framework fastened to the back end of the crane body. The gantry provides a sturdy, stable attachment for the boom falls, ensuring the lines stay secure and don’t snag or whip during operation.

A jib is a different extension on some cranes, used to reach further; the counterweight is for balance, not a securing point for the lines; and an A-frame is another structural form, not the standard anchor for the boom falls.

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