For occupant loads of 50 persons or more, a door to a landing in any position of opening swing, may not reduce the landing width to less than ____% of its required width.
A. 20%, B. 30%
C. 40%, D. 50%, E. 60%
Which of the following detector types can detect smoke or a smoldering fire that has not yet burst into flames? A. Ionization B. Rise-of-temperature C. Photoelectric D. Flame detectors
A soil's density can provide an indication of its strength. To increase load-bearing capacity what does soil modification often seek to reduce in soil?
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