7.2. Importance of Proper Use of Outriggers

Try these first

1. 1.

   What is the primary function of outriggers in cranes?

   Hint

   Think about how a wide stance helps maintain balance.

2. 2.

   What is a safety margin?

   Hint

   Consider it a cushion for safety.

3. 3.

   What is the function of outriggers in crane operation?

   • Increase stability
   • Reduce weight
   • Increase height

   Hint

   Consider how they help maintain balance.

4. 4.

   True or False: Safety margins are optional when determining crane loads.

   • True
   • False

   Hint

   Think about safety in construction.

5. 5.

   If a truck-mounted crane has an operating radius of 15m with a load line measuring 12m from the center, calculate the changing safe working load as the radius increases to 18m under the same conditions.

   Hint

   Use values of X in the equation to understand how L is affected by radius change.

6. 6.

   A crane capable of lifting 200 tons at maximum capacity fails to stabilize due to insufficient outrigger extension. If conditions are remedied and load is reduced to 80 tons, how will the operational guidelines change?

   Hint

   Consider the factors like ground conditions and load distribution.