The structural elements made of __________ gets Ignite and get rapidly destroyed in case of fire.(a) Cast iron(b) Timber(c) Stone(d) SteelThe question was posed to me in my homework.Origin of the question is Fire Resisting Materials topic in division Fire Protection in Building, Carpentry and Joinery of Construction & Building Materials

The structural elements made of __________ gets Ignite and get rapidly

1.	The structural elements made of __________ gets Ignite and get rapidly destroyed in case of fire.(a) Cast iron(b) Timber(c) Stone(d) SteelThe question was posed to me in my homework.Origin of the question is Fire Resisting Materials topic in division Fire Protection in Building, Carpentry and Joinery of Construction & Building Materials
Answer» The correct answer is (B) Timber Easiest explanation: In order to make Timber more fire-resistant, the surface of the timber are SOMETIMES coated with certain CHEMICAL such as Ammonium Phosphate and sulphate, borax and boric acid, ETC. Such a treatment on timber surfaces retards the rise of temperature during a fire.

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