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 (ii) and (iii) (iii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) (iii) and (iv) (i) and (ii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Plastics are compounds of carbon with element Hydrogen Oxygen All of these Nitrogen Hydrogen Oxygen All of these Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Building Materials The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called Bessemer process Crucible process Open hearth process Cementation process Bessemer process Crucible process Open hearth process Cementation process ANSWER DOWNLOAD EXAMIANS APP
Building Materials Crushing strength of a good building stone should be more than 50 MPa 150 MPa 100 MPa 200 MPa 50 MPa 150 MPa 100 MPa 200 MPa ANSWER DOWNLOAD EXAMIANS APP
Building Materials Paints with white lead base are suitable for painting of Wood work Iron work Both wood work and iron work None of these Wood work Iron work Both wood work and iron work None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Plastic bitumen is generally used for Crack fillings Road pavements Expansion joints None to these Crack fillings Road pavements Expansion joints None to these ANSWER DOWNLOAD EXAMIANS APP
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