Building Materials The percentage of alumina in a good brick earth lies between 20 to 30 % 5 to 10 % 50 to 60 % 70 to 80 % 20 to 30 % 5 to 10 % 50 to 60 % 70 to 80 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The minimum compressive strength of 1st class bricks should be 100 kg/cm² 75 kg/cm² 120 kg/cm² 75 kg/cm² 100 kg/cm² 75 kg/cm² 120 kg/cm² 75 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Building Materials Sewer pipes are made of All listed here Stone ware Refractory clay Earthen ware All listed here Stone ware Refractory clay Earthen ware ANSWER DOWNLOAD EXAMIANS APP
Building Materials The fire clay contains pure Hydrated aluminium silicate Oxide of iron Lime Magnesium Hydrated aluminium silicate Oxide of iron Lime Magnesium ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following is a mineral? Granite Basalt Quartz Syenite Granite Basalt Quartz Syenite ANSWER DOWNLOAD EXAMIANS APP
Building Materials Rocks formed due to alteration of original structure due to heat and excessive pressure are called Sedimentary rocks None of these Igneous rocks Metamorphic rocks Sedimentary rocks None of these Igneous rocks Metamorphic rocks ANSWER DOWNLOAD EXAMIANS APP
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