Final answer:
To safeguard workers from the risks of protruding steel, one should guard the hazard and alert the supervisor. Following OSHA regulations includes safety training, hazard reduction, and use of personal protective equipment.
Step-by-step explanation:
To protect workers from injury caused by protruding reinforcing steel on a job site, the appropriate action would be to take steps to ensure the protruding steel is properly guarded. It is essential to inform the supervisor or project manager of the hazard so that immediate corrective measures can be taken.
It would also be advisable to ensure that all workers on the site are trained in safety awareness and understand the risks associated with the job site. In line with OSHA's regulations, employers are required to provide safety training, eliminate or reduce hazards by making changes in working conditions, and utilize protective equipment to safeguard their workers from recognized dangers.