The BOOM is usually 70 to 90 feet long and is hinged to the mast at its base, so that both move together when the derrick swings to a new direction. Which question can be answered only if an illustration accompanies the text? A. What is the shape of the boom? B. How long is the boom? C. Does the boom move when the derrick swings? D. Where is the boom attached to the mast?

A. What is the shape of the boom?

Explanation:

When describing a shape, it is notable to identify all the characteristics that makes it so. This encompasses the length, width, what is attached to it, importance and how to use it in most scenario.

Having identified the length of the "Boom" and where it can be found, it could be said that the answer addresses the question of "what is the shape of the boom?"

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