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) (iii) and (iv) (i) and (iv) (ii) and (iii) (i) and (ii) (iii) and (iv) (i) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Sapwood consists of Portion of timber between heartwood and cambium layer Thin layers below the bark Innermost annular rings around the pith Thin fibre which extends from the pith outwards and holds the annular rings together Portion of timber between heartwood and cambium layer Thin layers below the bark Innermost annular rings around the pith Thin fibre which extends from the pith outwards and holds the annular rings together ANSWER DOWNLOAD EXAMIANS APP
Building Materials Seasoning of timber is essential to remove Roughness of timber Knots from timber Twisted fibre from timber Sap from timber Roughness of timber Knots from timber Twisted fibre from timber Sap from timber ANSWER DOWNLOAD EXAMIANS APP
Building Materials Wrought iron is manufactured from pig iron by All of these Pudding Refining Shingling All of these Pudding Refining Shingling ANSWER DOWNLOAD EXAMIANS APP
Building Materials The normal curing period for lime mortar, is: 9 days 3 days 5 days 7 days 9 days 3 days 5 days 7 days ANSWER DOWNLOAD EXAMIANS APP
Building Materials Name the type of cement from the following for canal linings: Pozzolana cement Quick setting cement Sulphate resisting cement Rapid hardening cement Pozzolana cement Quick setting cement Sulphate resisting cement Rapid hardening cement ANSWER DOWNLOAD EXAMIANS APP
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