Smoke detectors and its applications
Smoke detector may not be more than _____ feet from any point of ceiling.
Which of the following will recall an elevator?
________ detect a smoldering fire the best.
On a ceiling that is 15 ft. high, in a room that is 20 ft. wide by 20 ft. long, the listed spacing for a smoke detector must be reduced by _______ percent.
When must a smoke alarm be replaced?