281. In areas designated as zone AO, the design flood elevation shall be the elevation of the highest existing grade of the building perimeter plus how many feet if the depth is not specified on the flood hazard map?
282. That property of materials that prevents or retards the passage of excessive heat, hot gases or flames under conditions of use is?
283. Masonry in which the tensile resistance of the masonry is taken into consideration and the effects of stresses in reinforcement are neglected is?
284. A means of egress includes?
285. The number of persons for which the means of egress of a building or portion thereof is designed is the?
286. Panic hardware does what when actuated?
287. What is the minimum width of a public way?
288. That portion of a building included between the upper surface of a floor and the upper surface of the floor or roof next above is a?
289. Occupancy classification refers to classifying a structure for?
290. Where a structure is proposed for a purpose that is not specifically provided for in the code, such a structure shall be classified by the Building Official to the group that?