Respuesta :
Engineering controls are methods that are built into the design of a plant, equipment or process to minimize the hazard. Engineering controls are a very reliable way to control worker exposures as long as the controls are designed, used and maintained properly.
The correct option is B. Placing used needles in a sharps container is not an example of an engineering control.
Engineering controls are practices designed in an attempt to reduce or even eliminate the exposure of a human being to chemical and other physical hazards by using or substitution of engineered machinery or tools.
The basic types of engineering controls are: process control, enclosure and/or isolation of emission source, ventilation.