Firefighter 2 Review - All Chapters Exam Questions with correct Answers

The most common building material in North America is - ANSWER-Wood What is it called when stones and concrete lose small portions of their surface when heated - ANSWER-Spalling At what temperature does steel begin losing its strength? - ANSWER-570 degrees Fahrenheit What percentage of its original design load can steel hold after being exposed to flashover temperatures? - ANSWER-40% What type of construction can push out load-bearing walls and cause collapse? - ANSWER-Type 2 - unprotected frame due to elongating steel What is concrete reinforced with? - ANSWER-Steel reinforcement bars (rebar) or wire mesh What is another name for drywall/Sheetrock? - ANSWER-Gypsum What is generally found in buildings built prior to 1950? - ANSWER-Lath and Plaster What does newer construction often contain and why is it dangerous to inhabitants and responders? - ANSWER-Composite building components which are generally glued using resin binders - they are dangerous due to the fact that they can produce significant toxic gasses and rapidly deteriorate in fire conditions What is particle board and what hazard does it pose to responders? - ANSWER-Particle board is pieces of small wood and flakes glued together and is mainly used for furniture