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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
The individual variation between test strength of sample should not be more than

± 10% of average
± 15% of average
±20% of average
±5% of average

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Concrete Technology and Design of Concrete Structures
The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone

tensile stress
compressive stress
shear stress
bond stress

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Concrete Technology and Design of Concrete Structures
In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always

tensile or compressive
compressive
tensile
zero

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Concrete Technology and Design of Concrete Structures
Maximum quantity of water needed per 50 kg of cement for M 15 grade of concrete is

32 liters
34 liters
28 liters
30 liters

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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

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

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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

rounded
elongated
All of these
angular

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