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.
For example: 1  Residential sprinkler systems offer a low cost reliable safety option that attracts many home buyers. 2  Residential sprinklers will either extinguish a fire or control it until the arrival of the fire department. 3  Residential sprinkler systems help to eliminate flame and smoke by controlling a fire quickly.