Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Silica 70% ; lime 20% ; other ingredients 10% Lime 22% ; silica 63% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 63% ; silica 22% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Lime 22% ; silica 63% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 63% ; silica 22% ; other ingredients 15% ANSWER DOWNLOAD EXAMIANS APP
Building Materials The hardest rock is Quartz Diamond Marble Talc Quartz Diamond Marble Talc ANSWER DOWNLOAD EXAMIANS APP
Building Materials A stone is rejected if it absorbs water more than 15 % 5 % 20 % 10 % 15 % 5 % 20 % 10 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good brick earth should contain: About 20% to 30% of alumina About 50% to 60% of silica All listed here Not more than 5% of lime About 20% to 30% of alumina About 50% to 60% of silica All listed here Not more than 5% of lime ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called Hypabyssal rocks Igneous rocks Plutonic rocks Volcanic rocks Hypabyssal rocks Igneous rocks Plutonic rocks Volcanic rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the correct characteristic of Pyroxene from the following: All listed here It converts to chlorine by hydration It forms octagonal crystals All listed here It converts to chlorine by hydration It forms octagonal crystals ANSWER DOWNLOAD EXAMIANS APP
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