Question

which of the following conditions must be met before moving a mobile scaffold while workers are on it? the surface on which the scaffold is being moved is within 3 degrees of level and free of pits, holes, and obstructions. the height to base - width ratio of the scaffold is two to one or less unless the scaffold is designed and constructed to meet or exceed nationally recognized stability test requirements. required outrigger frames are installed on both sides of the scaffold. all of the above

Explanation:

When moving a mobile scaffold with workers on it, the surface must be level (within 3 degrees) and clear of obstacles. The height - to - base - width ratio is important for stability (2:1 or less unless special design). Outrigger frames are required for safety. All these are standard safety requirements in construction (Construction Project Management sub - field of Social Science).

Answer:

All of the above.