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.
Some pipefitters specialize: 1  Gasfitters install pipes that provide natural gas to heating and cooling systems and to stoves. They also install pipes that provide clean oxygen to patients in hospitals. 2  Sprinklerfitters install and repair fire sprinkler systems in businesses, factories, and residential buildings.