Which of these edge conditions for gypsum wallboard allows finishing by taping and filling (with joint compound) to produce an invisible seam between sheets; a smooth, monolithic appearance ready for final finishing? A. Tapered B. Tongue-and-groove C. Beveled D. Square Answer A. Tapered. B. and D. are used for base or intermediate layers. C. and D. are pre-finished boards, often received by various edge beads or trims. ARE 4.0 exam prep: BDCS
Match the flame spread and smoke developed index values with the corresponding wall & ceiling finish class: flame spread 0-25 flame spread 26-75 flame spread 76-200 smoke developed 0-100 smoke developed 0-450 smoke developed >500 Class A = Class B = Class C = Answer A=flame 0-25, smoke 0-450; B=flame26-75, smoke 0-450; C=flame 76-200, smoke 0-450 ARE 4.0 exam prep: BCDS
Intumescent paints are often used to protect exposed steel, making it unnecessary to enclose the structure with fire-rated assemblies and saving valuable interior space. Why must special care be taken with construction tolerances around all structural elements using intumescent paints? Answer In a fire, the paint intumesces and expands to protect the material. Adequate clearance must be taken into account to ensure proper fire-resistance will be maintained. ARE 4.0 exam prep: BDCS
Select 3 types of poured-in-place flooring from the following list: I. Linoleum II. Elastomeric III. Rubberized plastic IV. Parquet V. Terrazzo VI. Asphalt tile Answer II, III, V are poured-in-place. ARE 4.0 exam prep: BDCS