Concrete Technology and Design of Concrete Structures The strength of concrete after one year as compared to 28 days strength is about 20 to 25% more 10 to 15% more 15 to 20% more 25 to 50% more 20 to 25% more 10 to 15% more 15 to 20% more 25 to 50% more 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 elastic shortening of concrete loss due to friction shrinkage of concrete creep of concrete elastic shortening of concrete loss due to friction shrinkage of concrete ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The diameter of ties in a column should be More than or equal to 5 mm More than 5 mm and also more than one-fourth of diameter of main bar More than or equal to one fourth of diameter of main bar More than 5 mm but less than one-fourth of diameter of main bar More than or equal to 5 mm More than 5 mm and also more than one-fourth of diameter of main bar More than or equal to one fourth of diameter of main bar More than 5 mm but less than one-fourth of diameter of main bar ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is To resist tensile stresses To impart initial compressive stress in concrete To provide adequate bond stress All of these To resist tensile stresses To impart initial compressive stress in concrete To provide adequate bond stress All of these ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should be 900 mm 750 mm 600 mm more than 1 m 900 mm 750 mm 600 mm more than 1 m ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be 0.45 d dependent on grade of concrete also 0.40 d 0.35 d 0.45 d dependent on grade of concrete also 0.40 d 0.35 d ANSWER DOWNLOAD EXAMIANS APP
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