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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures
The effect of creep on modular ratio is

to decrease it
to increase it
either to decrease or to increase it
to keep it unchanged

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

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

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Concrete Technology and Design of Concrete Structures
The permissible diagonal tensile stress in reinforced brick work is

0.3 N/mm² to 0.7 N/mm²
about 0.1 N/mm²
about 1.0 N/mm²
zero

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Concrete Technology and Design of Concrete Structures
Increase in the moisture content in concrete

increases the strength
does not change the strength
reduces the strength
All of these

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Concrete Technology and Design of Concrete Structures
If the storey height is equal to length of RCC wall, the percentage increase in strength is

30
10
20

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Concrete Technology and Design of Concrete Structures
Which of the following has high tensile strength ?

all have same tensile strength
heat treated rolled wires
plain hot rolled wires
cold drawn wires

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