Question

what should be confirmed before climbing on a scaffold?
○ a competent person on the ground is holding on to the scaffold
○ only composite scaffolds are used when working near electricity lines
○ the path is clear for the scaffold to be rolled into location
○ the wheel brakes on the scaffold are locked in place

Explanation:

Before climbing on a scaffold, safety - related aspects need to be confirmed. Having the wheel brakes locked in place prevents the scaffold from moving during use, which is crucial for safety. A competent person on the ground holding the scaffold is not a standard pre - climb requirement. Using only composite scaffolds near electricity lines is about the type of scaffold during work, not pre - climb confirmation. Clearing the path for rolling the scaffold is for moving it, not for pre - climb safety check.

Answer:

D. the wheel brakes on the scaffold are locked in place