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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
The minimum cover to the ties or spirals should not be less than

15 mm
20 mm
25 mm
50mm

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Concrete Technology and Design of Concrete Structures
In case of hand mixing of concrete, the extra cement to be added is

10%
20%
15%
5%

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Concrete Technology and Design of Concrete Structures
To determine the modulus of rupture, the size of test specimen used is

150 x150 x700 mm
150 x150 x500 mm
100 x100 x500 mm
100 x100 x700 mm

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Concrete Technology and Design of Concrete Structures
According to Whitney’s theory, ultimate strain of concrete is assumed to be

0.3%
0.4%
0.5%
0.6%

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Concrete Technology and Design of Concrete Structures
The approximate value of the ratio between direct tensile strength and flexural strength is

0.75
0.33
0.5
1

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Concrete Technology and Design of Concrete Structures
In a ring beam subjected to uniformly distributed loadi) shear force at mid span is zeroii) shear force at mid span is maximumiii) torsion at mid span is zeroiv) torsion at mid span is maximum The correct answer is

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

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