Building Materials The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively: 10, 15, 75 75, 10, 15 10, 75, 15 15, 75, 10 10, 15, 75 75, 10, 15 10, 75, 15 15, 75, 10 ANSWER DOWNLOAD EXAMIANS APP
Building Materials For high grade instruments the steel preferred to, is Cast steel Bessemer steel Mild steel Whitworth compressed steel Cast steel Bessemer steel Mild steel Whitworth compressed steel ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rock generally used for roofing, is Basalt Pumice Granite Slate Basalt Pumice Granite Slate 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 Wrought iron is manufactured from pig iron by Pudding Shingling Refining All of these Pudding Shingling Refining All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The term frog means A depression on a face of brick Vertical joint in a brick work An apparatus to lift the stone Soaking brick in water A depression on a face of brick Vertical joint in a brick work An apparatus to lift the stone Soaking brick in water ANSWER DOWNLOAD EXAMIANS APP
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