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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called

bulking
creep
segregation
bleeding

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Concrete Technology and Design of Concrete Structures
The slab is designed as one way if the ratio of long span to short span is

between 1 and 1.5
less than 1
greater than 2
between 1.5 and 2

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Concrete Technology and Design of Concrete Structures
For a reinforced concrete section, the shape of shear stress diagram is

rectangular above neutral axis and parabolic below neutral axis
wholly parabolic
wholly rectangular
parabolic above neutral axis and rectangular below neutral axis

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Concrete Technology and Design of Concrete Structures
Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than

42 MPa and 53 MPa
35 MPa and 42 MPa
42 MPa and 35 MPa
53 MPa and 42 MPa

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Concrete Technology and Design of Concrete Structures
Admixtures which cause early setting, and hardening of concrete are called

retarders
accelerators
workability admixtures
air entraining agents

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Concrete Technology and Design of Concrete Structures
Workability of concrete is inversely proportional to

time of transit
size of aggregate
vater-cement ratio
the air in the mix

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