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______________ is a poor conductor of heat and the cracks are formed in this material when heated and then suddenly cooled.(a) Glass(b) Steel(c) Brick(d) AluminiumI got this question in a job interview.This interesting question is from Fire Resisting Materials in division Fire Protection in Building, Carpentry and Joinery of Construction & Building Materials

Answer»

Right answer is (a) Glass

For explanation I would say: The reinforced glass with steel wire is more fire resistant than ordinary glass and it can resist SUDDEN variations in temperature without the formation of cracks. The WIRED glass, even if it BREAKS, keeps the fractured glass in its ORIGINAL POSITION.



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