5.1. Mobility and Cost Advantages

Try these first

1. 1.

   What does 'u' represent in crane operations?

   Hint

   Think about crane balance.

2. 2.

   What is the purpose of outriggers?

   Hint

   Consider the base area.

3. 3.

   What does 'u' stand for?

   • Overturning distance
   • Fulcrum distance
   • Distance from the boom center to tipping axis

   Hint

   It's related to the crane’s balance.

4. 4.

   True or False: Outriggers can be skipped if the crane is on flat ground.

   • True
   • False

   Hint

   Think about lifting safety.

5. 5.

   A crane has a weight of 200 tons and a counterweight of 50 tons. Discuss how you would calculate the maximum safe working load of the crane, using appropriate formulas and considering safety margins.

   Hint

   Focus on understanding how each factor affects the outcome.

6. 6.

   Given a telescopic crane with a SWL of 75 tons, detail how changing the loading angle impacts lifting capacity and potential safety issues.

   Hint

   Think about center of gravity shifts and stability.