NCCCO Core Exam Outline questions with correct answers

Timber or steel - Answer These materials should be used when setting up on soft surfaces such as soft ground, asphalt or backfilled material Over the corner - Answer On crawler cranes, which boom position creates the greatest ground pressure Blocking - Answer Allows the weight of the crane and load to be distributed over a greater surface area. Should be used under outrigger floats at all times. 3 - Answer Blocking should be at least how many times the surface area of the float Energized - Answer Overhead power lines must be considered to be in this condition until electrical authorities indicate otherwise Prohibited zone - Answer No part of the crane or load must ever enter this area around an energized power line kV - Answer The prohibited zone must be enlarged as this increases 20 foot - Answer What minimum distance does OSHA require be maintained