Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is To resist tensile stresses All of these To provide adequate bond stress To impart initial compressive stress in concrete To resist tensile stresses All of these To provide adequate bond stress To impart initial compressive stress in concrete ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Modulus of elasticity of steel as per IS : 456-1978 shall be taken as 200 kN/cm² 20 kN/cm² 200kN/mm² 2xl06N/cm² 200 kN/cm² 20 kN/cm² 200kN/mm² 2xl06N/cm² ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures 1% of voids in a concrete mix would reduce its strength by about 15% 5% 20% 10 % 15% 5% 20% 10 % ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The main reinforcement in the toe of a T- shaped R C. retaining wall is provided on i) top face parallel to the wall ii) top face perpendicular to the wall iii) bottom face paralleUo the wall iv) bottom face perpendicular to the wall The correct answer is only (ii) is correct (iii) and (iv) are correct (i) and (ii) are correct only (iv) is correct only (ii) is correct (iii) and (iv) are correct (i) and (ii) are correct only (iv) is correct ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The minimum cover in a slab should neither be less than the diameter of bar nor less than 15 mm 30 mm 10 mm 20 mm 15 mm 30 mm 10 mm 20 mm ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Poisson’s ratio for concrete decreases with richer mixes None of these increases with richer mixes remains constant decreases with richer mixes None of these increases with richer mixes remains constant ANSWER DOWNLOAD EXAMIANS APP
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