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.
Sprinkler heads operate individually. Note the red liquid alcohol in the glass bulb. A fire sprinkler system is an active fire protection method, consisting of a water supply system, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected.