1.4 - Safety Margins from Guidelines
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Practice Questions
Test your understanding with targeted questions
What does the term 'u' represent in crane stability?
💡 Hint: Think about the tipping point of the crane.
What is the purpose of outriggers on a crane?
💡 Hint: Consider how cranes stabilize themselves when lifting heavy loads.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does 'X' represent in crane calculations?
💡 Hint: It's related to how the crane balances loads.
True or False: The power crane shovel association recommends that crawler cranes should not exceed 75% of tipping load.
💡 Hint: Think about how safety guidelines help prevent accidents.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A crawler crane rated to lift 200 tons is to operate at a radius of 30m with a fulcrum distance of 10m. Calculate 'X' and determine the working load if the safety margin recommended is 75%.
💡 Hint: Apply the formulas we discussed earlier.
Analyze how operating a truck-mounted crane without outriggers on uneven terrain can lead to an accident, detailing the conditions leading to a tipping incident.
💡 Hint: Consider what happens to stability when the supporting surface is compromised.
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