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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
The design yield stress of steel according to IS: 456-1978 is (where fy is the characteristic yield strength of steel)

0.57 fy
0.67 fy
0.37 fy
0.87 fy

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Concrete Technology and Design of Concrete Structures
Normally prestressing wires are arranged in the

lower part of the beam
upper part of the beam
center
anywhere

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Concrete Technology and Design of Concrete Structures
Prestress loss due to friction occurs

only in pretensioned beams
None of these
in both post-tensioned and preten-sioned beams
only in post-tensioned beams

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Concrete Technology and Design of Concrete Structures
Maximum percentage reinforcement in case of slabs is limited to

9
2
4
8

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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
tensile
zero
compressive

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Concrete Technology and Design of Concrete Structures
Select the incorrect statement for ...

Bleeding can be minimized by adding pozzuolana finer aggregate.
Bleeding can be increased by addition of calcium chloride.
Lean mixes bleed more as compared to rich ones.
None of these

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