Concrete Technology and Design of Concrete Structures
The main reinforcement in the toe of a T- shaped R C. retaining wall is provided oni) top face parallel to the wallii) top face perpendicular to the walliii) bottom face paralleUo the walliv) bottom face perpendicular to the wallThe correct answer is

(iii) and (iv) are correct
(i) and (ii) are correct
only (iv) is correct
only (ii) is correct

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

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

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Concrete Technology and Design of Concrete Structures
Minimum pitch of transverse reinforcement in a column is

forty-eight times the diameter of transverse reinforcement
sixteen times the smallest diameter of longitudinal reinforcement bar to be tied
the least lateral dimension of the member
lesser of the above three values

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