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3 cards from this section. Quick, good the night before a test.
What is the main distinguishing feature of a bottom slewing crane?
Think about where the pivot point for rotation is located.
How does the height limitation of bottom slewing cranes affect their use?
Consider the implications of design and stability.
What is the primary advantage of bottom slewing cranes?
Think about the context in which they are typically used.
Bottom slewing cranes can exceed a height of 120 meters.
Consider the design and structural constraints.
Design a project plan for a low-rise building in a highly condensed urban area. Determine why a bottom slewing crane would be appropriate. Support your reasoning with pros and cons of using this type of crane.
Weigh the pros and cons against the project's size and location.
Calculate the potential lifting capacity loss of a bottom slewing crane if it is required to operate under windy conditions. Assume that the lifting capacity decreases by 10% for each 10 km/h above 50 km/h.
Think about how external conditions influence operational capacity.
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