Structural lumber has a moisture content of ___________% or less. 25% 19% 15% 12% {Ans: 19%}Self-closing doors activated by fire-detection, water-flow, or other alarm devices can be found in all of the following locations, except: A. Openings into mechanical or electrical spaces B. Openings into secure zones C. Walls separating connected buildings D. Walls that separate two different occupancy use groups {Ans: Openings into secure zones}_____ are commonly used in high-rise buildings and hospitals as a means of passing through a fire-barrier wall that separates two fire compartments in a structure. a) Horizontal exits b) Exit discharge c) Exit passageways d) Smokeproof enclosure {Ans: Horizontal exits}From a fire-protection standpoint, building roofs can be broadly classified into three categories: A. domed, peaked, and slanted B. flat, pitched and curved C. rigid, non-rigid and semi-rigid D. fire resistant, non-combustible and combustible {Ans: flat, pitched and curved}All are elements of the Communication Model except... A. Message B. Personal Appearance C. Interference D. Feedback {Ans: Personal Appearance}A ______ is a framed structural unit made of a group of triangles in one plane. a. joist b. truss c. web d. beam {Ans: truss}