Concrete Technology and Design of Concrete Structures
The average permissible stress in bond for plain bars in tension is

increased by 10% for bars in compression
increased by 25% for bars in compression
decreased by 25% for bars in compression
decreased by 10% for bars in compression

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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

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

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Concrete Technology and Design of Concrete Structures
As compared to ordinary portland cement, high alumina cement has

lower initial setting time but higher final setting time
higher initial setting time but lower final setting time
higher initial and final setting times
lower initial and final setting times

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