Pick up the correct statement from the following:-A-The free quartz suddenly expands at a temperature lower than 600°CB-The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2C-The sand stone with silicates resist a fire in a better wayD-The argillaceous stone though poor in strength can resist fire quite weakE-All the above.-E-All the above.

Question

Pick up the correct statement from the following:-A-The free quartz suddenly expands at a temperature lower than 600&#176;CB-The lime stone resists fire upto about 800&#176;C and at higher temperature it splits into CaO and CO2C-The sand stone with silicates resist a fire in a better wayD-The argillaceous stone though poor in strength can resist fire quite weakE-All the above.-E-All the above.

APTITUDE CRACK · Accepted Answer

The correct option is  E All the above. According to textbook of Engineering geology by Kesavulu (para 17.3.6. Frost and fire resistance), all the statements are correct.

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