Building Materials The basic purpose of a retarder in concrete is To increase the initial setting time of cement paste in concrete To improve the workability of concrete mix To decrease the initial setting time of cement paste in concrete To render the concrete more water tight To increase the initial setting time of cement paste in concrete To improve the workability of concrete mix To decrease the initial setting time of cement paste in concrete To render the concrete more water tight ANSWER DOWNLOAD EXAMIANS APP
Building Materials The steel used for the manufacture of rails, is Cast steel Stainless steel Bessemer steel Mild steel Cast steel Stainless steel Bessemer steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
Building Materials Fibre glass Has a higher strength to weight ratio Retains heat-longer Is shock proof and fire retardant All listed here Has a higher strength to weight ratio Retains heat-longer Is shock proof and fire retardant All listed here 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 (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Age of a tree may be ascertained by Number of branches Number of annual rings Circumference of its stem Radius of its stem Number of branches Number of annual rings Circumference of its stem Radius of its stem ANSWER DOWNLOAD EXAMIANS APP
Building Materials The yield strength and tensile strength of low carbon steel may be improved by the addition of Manganese Chromium Nickel Vanadium Manganese Chromium Nickel Vanadium ANSWER DOWNLOAD EXAMIANS APP
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