Building Materials A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than 10 % 25 % 20 % 15 % 10 % 25 % 20 % 15 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The main ingredients of Portland cement are Silica and alumina Lime and iron Lime and alumina Lime and silica Silica and alumina Lime and iron Lime and alumina Lime and silica ANSWER DOWNLOAD EXAMIANS APP
Building Materials Age of a tree may be ascertained by Number of branches Number of annual rings Circumference of its stem Radius of its stem Number of branches Number of annual rings Circumference of its stem Radius of its stem ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks in which argil (or clay) predominates, are called Igneous rocks Siliceous rocks Argillaceous rocks Calcareous rocks Igneous rocks Siliceous rocks Argillaceous rocks Calcareous rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials A well seasoned timber may contain moisture up to 4 to 6 % 10 to 12 % 8 to 10 % 6 to 8 % 4 to 6 % 10 to 12 % 8 to 10 % 6 to 8 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Percentage of carbon content in mild steel is Greater than 1.5 Less than 0.25 Between 0.7 and 1.5 Between 0.25 and 0.7 Greater than 1.5 Less than 0.25 Between 0.7 and 1.5 Between 0.25 and 0.7 ANSWER DOWNLOAD EXAMIANS APP
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