Building Materials Plastics are compounds of carbon with element Nitrogen Oxygen Hydrogen All of these Nitrogen Oxygen Hydrogen All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials During pudding Molten metal is kept clear of the fuel All listed here Carbon is converted into carbonic acid gas Silicon forms a slag Molten metal is kept clear of the fuel All listed here Carbon is converted into carbonic acid gas Silicon forms a slag ANSWER DOWNLOAD EXAMIANS APP
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 (i) and (ii) (i) and (iv) (ii) and (iii) (iii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Red short iron cracks when bent due to the presence of Sulphur Carbon Silicon Phosphorus Sulphur Carbon Silicon Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Building Materials Lacquer is Distemper Spirit varnish None to these Oil paint Distemper Spirit varnish None to these Oil paint ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gypsum consists of Lime and H₂O H₂S and CO₂ CaSO4 and H₂O CO₂ and calcium Lime and H₂O H₂S and CO₂ CaSO4 and H₂O CO₂ and calcium ANSWER DOWNLOAD EXAMIANS APP
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