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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
Air entrainment in the concrete increases

the unit weight
the effects of temperature variations
strength
workability

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Concrete Technology and Design of Concrete Structures
The strength of concrete after one year as compared to 28 days strength is about

15 to 20% more
20 to 25% more
25 to 50% more
10 to 15% more

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Concrete Technology and Design of Concrete Structures
In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on
i) bottom face near counterfort
ii) top face near counterfort
iii) bottom face near centre of span
iv) top face near centre of span
The correct answer is

both (ii) and (iii)
both (i) and (iv)
only (ii)
only (i)

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Concrete Technology and Design of Concrete Structures
In counterfort type retaining walls i) the vertical slab is designed as a continuous slab ii) the heel slab is designed as a continuous slab iii) the vertical slab is designed as a cantilever iv) the heel slab is designed as a cantilever The correct answer is

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

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Concrete Technology and Design of Concrete Structures
The minimum diameter of longitudinal bars in a column is

16 mm
12 mm
6 mm
8 mm

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Concrete Technology and Design of Concrete Structures
In counterfort type retaining wallsi) the vertical slab is designed as a continuous slabii) the heel slab is designed as a continuous slabiii) the vertical slab is designed as a cantileveriv) the heel slab is designed as a cantileverThe correct answer is

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

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MORE MCQ ON Concrete Technology and Design of Concrete Structures

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