Mobile Cranes No. 1 Study Guide | 100% Correct Answers | Verified | Latest 2024 Version

The load radius as shown on the capacity chart is the distance from the center of rotation to the centerline of the vertical host line with: - The rated load suspended. If the jib angle to ground is changed from 50 degrees to 40 degrees, this would affect the capacity of the crane how? - Capacity will decrease. Load capacity charts are based on 75% of tipping for crawler cranes without out riggers. For wheel mounted cranes, using outriggers fully extended, capacities are based on what percentage of tipping? - 85% The operators should exercise extreme caution when lifting loads from the water mainly because: - The load on the crane will increase as an object leaves the water. On the upper works - On the carrier. When working on soft soil with poor bearing support: - Use matting to distribute crane's weight over a larger area. The best way to determine the weight of a load to be lifte