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

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

only (ii)

both (i) and (iv)

both (ii) and (iii)

only (i)

only (ii)

both (i) and (iv)

both (ii) and (iii)

only (i)

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Concrete Technology and Design of Concrete Structures
Due to circumferential action of the spiral in a spirally reinforced column

Ductility of column reduces

Both the capacity of column and ductility of column increase

Capacity of column is decreased

Capacity of column is decreased but ductility of column increases

Ductility of column reduces

Both the capacity of column and ductility of column increase

Capacity of column is decreased

Capacity of column is decreased but ductility of column increases

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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

compressive stress

bond stress

shear stress

tensile stress

compressive stress

bond stress

shear stress

tensile stress

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Concrete Technology and Design of Concrete Structures
The purpose of reinforcement in pre-stressed concrete is

To impart initial compressive stress in concrete

To provide adequate bond stress

All of these

To resist tensile stresses

To impart initial compressive stress in concrete

To provide adequate bond stress

All of these

To resist tensile stresses

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Concrete Technology and Design of Concrete Structures
If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called

None of these

balanced beam

under-reinforced beam

over-reinforced beam

None of these

balanced beam

under-reinforced beam

over-reinforced beam

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Concrete Technology and Design of Concrete Structures
Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?

loss due to friction

creep of concrete

elastic shortening of concrete

shrinkage of concrete

loss due to friction

creep of concrete

elastic shortening of concrete

shrinkage of concrete

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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures Due to circumferential action of the spiral in a spirally reinforced column

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

Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is

Concrete Technology and Design of Concrete Structures If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called

Concrete Technology and Design of Concrete Structures Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?

Concrete Technology and Design of Concrete Structures
Due to circumferential action of the spiral in a spirally reinforced column

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

Concrete Technology and Design of Concrete Structures
The purpose of reinforcement in pre-stressed concrete is

Concrete Technology and Design of Concrete Structures
If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called

Concrete Technology and Design of Concrete Structures
Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?