Concrete Technology and Design of Concrete Structures Shrinkage of concrete depends uponi) humidity of atmosphereii) passage of timeiii) stress The correct answer is only (iii) (i) and (ii) All (i), (ii) and (iii) (ii) and (iii) only (iii) (i) and (ii) All (i), (ii) and (iii) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ? creep of concrete loss due to friction elastic shortening of concrete shrinkage of concrete creep of concrete loss due to friction elastic shortening of concrete shrinkage of concrete ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory can be less than 1 is always greater than 1 can be more than 1 is always less than 1 can be less than 1 is always greater than 1 can be more than 1 is always less than 1 ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For a reinforced concrete section, the shape of shear stress diagram is rectangular above neutral axis and parabolic below neutral axis wholly parabolic wholly rectangular parabolic above neutral axis and rectangular below neutral axis rectangular above neutral axis and parabolic below neutral axis wholly parabolic wholly rectangular parabolic above neutral axis and rectangular below neutral axis ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The effect of adding calcium chloride in concrete is i) to increase shrinkage ii) to decrease shrinkage iii) to increase setting time iv) to decrease setting time The correct answer is (i)and(iv) (ii) and (iii) (ii) and (iv) (i) and (iii) (i)and(iv) (ii) and (iii) (ii) and (iv) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For walls, columns and vertical faces of all structural members, the form work is generally removed after 14 days 3 days 7 days 24 to 48 hours 14 days 3 days 7 days 24 to 48 hours ANSWER DOWNLOAD EXAMIANS APP
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