Building Materials Gneiss is obtained from Sedimentary metamorphic rocks Sedimentary rocks Metamorphic rocks Igneous rocks Sedimentary metamorphic rocks Sedimentary rocks Metamorphic rocks Igneous rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good brick earth should contain: About 20% to 30% of alumina About 50% to 60% of silica Not more than 5% of lime All listed here About 20% to 30% of alumina About 50% to 60% of silica Not more than 5% of lime All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials A well seasoned timber may contain moisture up to 6 to 8 % 8 to 10 % 4 to 6 % 10 to 12 % 6 to 8 % 8 to 10 % 4 to 6 % 10 to 12 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials First class timber has an average life of 5 to 10 years More than 10 years 1 to 5 years Less than one year 5 to 10 years More than 10 years 1 to 5 years Less than one year ANSWER DOWNLOAD EXAMIANS APP
Building Materials The stretcher bond in brick masonry can be used only when the thickness of wall is 90 mm 280 mm 180 mm 190 mm 90 mm 280 mm 180 mm 190 mm ANSWER DOWNLOAD EXAMIANS APP
Building Materials Cast iron contains carbon approximately 1.5% to 5.5% 0.250 % 0.05% to 1.75% None to these 1.5% to 5.5% 0.250 % 0.05% to 1.75% None to these ANSWER DOWNLOAD EXAMIANS APP
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