When considering steel as a building material, which of the following is important to remember?
A. Steel is very strong and presents few problems in fire protection.
B. The thinner the steel, the quicker it can be affected by heat.
C. Protected steel is only slightly better that unprotected steel.
D. Steel is the only way to achieve fire-resistive or noncombustible buildings.
Answer: B. The thinner the steel, the quicker it can be affected by heat.
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Which of the following statements regarding colloid statements is TRUE?
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