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3 cards from this section. Quick, good the night before a test.
What are the main types of cranes discussed in this section?
Think about the mobility of the cranes.
What is hoisting?
Relate it to how a crane operates.
What types of cranes are characterized by their mobility?
Think about what makes each type unique.
True or False: The luffing motion can increase the distance between the load line and the center of rotation.
Consider what happens when the angle changes.
A crane is lifting a load of 3000 kg with a boom weighing 600 kg. If the crane's counterweights total 4000 kg, calculate the tipping and resisting moments, given the fulcrum distance is 5 meters.
Use the formula for moment, which is force multiplied by distance.
Design a scenario where a mobile crane is inefficient for lifting heavy materials. Describe the factors leading to the inefficiency, citing mobility and load capacity.
Consider the environment and weight of the materials.
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