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.
Quick Answer. On a sprinkler system, the tamper switch detects when a sprinkler valve has been partially or fully closed. The tamper switch also sends a signal to the central control. Some fire departments require buildings to have tamper switches activate fire alarms to alert building occupants to vacate. Continue Reading.