Building Materials Percentage of silica in a good brick earth lies between 50 to 60 % 20 to 30 % 5 to 10 % 70 to 80 % 50 to 60 % 20 to 30 % 5 to 10 % 70 to 80 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following sedimentary rocks changes into quartzite by metamorphic action? Gypsum Lime stone Shale Sand stone Gypsum Lime stone Shale Sand stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bessemer process is used for the manufacture of Cast iron Pig iron Wrought iron Steel Cast iron Pig iron Wrought iron Steel ANSWER DOWNLOAD EXAMIANS APP
Building Materials If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called Bessemer pig Grey or foundry pig White or forge pig Mottled pig Bessemer pig Grey or foundry pig White or forge pig Mottled pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials Slacking of lime is affected by Crushing the lime lumps Immersing the lime in water Keeping it exposed to air None of these Crushing the lime lumps Immersing the lime in water Keeping it exposed to air None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The proportions of lime and sand in the mortar normally used in brick construction are 1 : 6 1 : 8 1 : 4 1 : 2 1 : 6 1 : 8 1 : 4 1 : 2 ANSWER DOWNLOAD EXAMIANS APP
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