Building Materials Proper amount of entrained air in concrete results in(i) Better workability(ii) Better resistance to freezing and thawing(iii) Lesser workability(iv) Less resistance to freezing and thawing (iii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The initial setting time of lime-pozzolana, is 120 minutes 60 minutes 90 minutes 30 minutes 120 minutes 60 minutes 90 minutes 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks which are formed due to pouring of magma at the earth's surface are called Hypabyssal rocks Volcanic rocks Igneous rocks Plutonic rocks Hypabyssal rocks Volcanic rocks Igneous rocks Plutonic rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials The hardest rock is Diamond Quartz Talc Marble Diamond Quartz Talc Marble ANSWER DOWNLOAD EXAMIANS APP
Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 63% ; silica 22% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Lime 63% ; silica 22% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Soundness of cement is tested by Vicat's apparatus None of these Le-chatelier apparatus Compressive strength testing apparatus Vicat's apparatus None of these Le-chatelier apparatus Compressive strength testing apparatus ANSWER DOWNLOAD EXAMIANS APP
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