Concrete Technology and Design of Concrete Structures Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than 42 MPa and 53 MPa 35 MPa and 42 MPa 42 MPa and 35 MPa 53 MPa and 42 MPa 42 MPa and 53 MPa 35 MPa and 42 MPa 42 MPa and 35 MPa 53 MPa and 42 MPa ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is 0.43 d 0.68 d 0.85 d 0.55 d 0.43 d 0.68 d 0.85 d 0.55 d ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Increase in the moisture content in concrete does not change the strength reduces the strength All of these increases the strength does not change the strength reduces the strength All of these increases the strength ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures As compared to ordinary portland cement, use of pozzuolanic cement reduces workability increases shrinkage increases strength increases bleeding reduces workability increases shrinkage increases strength increases bleeding ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Prestress loss due to friction occurs only in pretensioned beams only in post-tensioned beams in both post-tensioned and preten-sioned beams None of these only in pretensioned beams only in post-tensioned beams in both post-tensioned and preten-sioned beams None of these ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse) 0.573 xu 0.416 xu 0.367 xu 0.446 xu 0.573 xu 0.416 xu 0.367 xu 0.446 xu ANSWER DOWNLOAD EXAMIANS APP
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