Denzel Washington on screen and stage. Denzel Washington is an American actor who made his feature film debut in Carbon Copy (1981).[1] In 1982, Washington made his first appearance in the medical drama St. Elsewhere as Dr. Philip Chandler.
Report Abuse. Sprinklers do not detect smoke. Some operate by a fuse that melts, from the heat of a fire, to release water, others operate by a sudden drop in water or air pressure in the pipe which is controlled by a alarm system, when activated.
They're an important part of a fire prevention system, as are fire sprinklers. The presence of one does not cancel out the need for the other. They work together to save life and property from fire. When a fire starts, the resulting smoke will eventually set off a smoke detector alerting residents to danger.