Final answer:
Option b, Segregating the hazard in time and space, is an engineering control as it involves designing the work environment to remove the hazard or place a barrier between the hazard and workers.
Step-by-step explanation:
When evaluating which of the given options is an engineering control, it is important to understand what engineering controls involve. Engineering controls are strategies designed to protect workers by removing a hazard or placing a barrier between the worker and the hazard. The use of engineering controls takes priority over other forms of risk management, such as administrative controls or personal protective equipment (PPE), whenever feasible.
Given the available options, b. Segregating the hazard in time and space is an example of an engineering control. This approach involves designing the work environment in such a way that the hazard can neither harm workers nor affect them when they are present. Examples include, as the information references, safety mechanisms like fire extinguishers and eyewash stations, as well as machine guards and ventilation systems.
Options a, c, and d are not considered engineering controls. Recognizing the source of the hazard is more about hazard identification; protecting workers through personal protective equipment is considered a form of personal control; and contacting the Ministry of Labour is a post-incident administrative action.