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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
The compressive strength of 100 mm cube as compared to 150 mm cube is always

None of these
equal
more
less

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Concrete Technology and Design of Concrete Structures
According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is

0.85 d
0.55 d
0.68 d
0.43 d

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Concrete Technology and Design of Concrete Structures
In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively

tensile and compressive
both compressive
compressive and tensile
both tensile

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Concrete Technology and Design of Concrete Structures
The limits of percentage p of the longitudinal reinforce-ment in a column is given by

0.8% to 4%
0.8% to 6%
0.15% to 2%
0.8% to 8%

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Concrete Technology and Design of Concrete Structures
In order to obtain the best workability of concrete, the preferred shape of aggregate is

All of these
rounded
elongated
angular

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Concrete Technology and Design of Concrete Structures
Sinking of an intermediate support of a continuous beam
i) reduces the negative moment at support
ii) increases the negative moment at support
iii) reduces the positive moment at center of span
iv) increases the positive moment at center of span
The correct answer is

(i) and (iii)
(ii) and (iii)
(i) and (iv)
(ii) and (iv)

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