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) (i) and (iv) (i) and (ii) (iii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials For high grade instruments the steel preferred to, is Whitworth compressed steel Bessemer steel Cast steel Mild steel Whitworth compressed steel Bessemer steel Cast steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
Building Materials As per IS specifications, the maximum final setting time for ordinary Portland cement should be 30 minutes 1 hour 6 hours 10 hours 30 minutes 1 hour 6 hours 10 hours ANSWER DOWNLOAD EXAMIANS APP
Building Materials In the method of condensation polymerization, Low-molecular substances are removed from the high molecular substance The reaction proceeds with an evolution of ammonia The reaction proceeds with an evolution of hydrogen chloride All of these Low-molecular substances are removed from the high molecular substance The reaction proceeds with an evolution of ammonia The reaction proceeds with an evolution of hydrogen chloride All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following gradients exerts maximum influence on properties of steel? sulphur carbon manganese iron sulphur carbon manganese iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The internal size of mould used in brick preparation is None of these Equal to the size of a fully burnt brick Smaller than the size of a fully burnt brick Greater than the size of a fully burnt brick None of these Equal to the size of a fully burnt brick Smaller than the size of a fully burnt brick Greater than the size of a fully burnt brick ANSWER DOWNLOAD EXAMIANS APP
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