Question

what crane device limits the angle of the boom at its highest position? select the best option. block boom stop jib if you need to review this content, it can be found in the introduction module of the cranes topic.

Explanation:

To determine the crane device that limits the boom's angle at its highest position, we analyze each option:

• "Block" is part of the hoisting mechanism, not for boom angle limitation.
• "Boom stop" is specifically designed to restrict the boom's angle, especially at its maximum (highest) position, preventing over - angling.
• "Jib" is an extension of the boom for additional reach, not for angle limitation.

Answer:

Boom stop