Construction Materials

131) As Per IS, The number of standard bricks required for one cubic metre of brick masonry is

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500

132) Hollow bricks are generally used with the purpose of

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providing insulation against heat

133) Terra cotta, in buildings, is used for

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ornamental work

134) Plaster of paris can be obtained from the calculation of

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Gypsum

135) The process of heating the lime stone to redness in contact with air is termed as

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Calcination

136) The temperature range at which the consistency test is conducted

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25°C to 29°C

137) The Consistency test is performed to find

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the correct water cement ratio

138) For normal consistency, the penetration in Vicat apparatus should be between

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33 to 35 mm

139) The initial setting time of ordinary portland cement should not be less than

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30 minutes

140) The final setting time of ordinary Portland cement Should not be more than

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10 h

Subject Notes

Objective Box

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