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

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Concrete Technology and Design of Concrete Structures
The critical section for finding maximum bending moment for footing under masonry wall is located

halfway between the middle and edge of the wall
at a distance equal to effective depth of footing from the edge of the wall
at the middle of the wall
at the edge of the wall

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Concrete Technology and Design of Concrete Structures
According to IS : 456-1978, the fiexural strength of concrete is

inversely proportional to square root of compressive strength
directly proportional to compressive strength
directly proportional to square root of compressive strength
inversely proportional to compressive strength

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