The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

Concrete Technology and Design of Concrete Structures
The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

0.367 xu

0.446 xu

0.416 xu

0.573 xu

0.367 xu

0.446 xu

0.416 xu

0.573 xu

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Concrete Technology and Design of Concrete Structures
In a counterfort retaining wall, the main reinforcement is provided on the i) bottom face in front counterfort ii) inclined face in front counterfort iii) bottom face in back counterfort iv) inclined face in back counterEort The correct answer is

(iii) and (iv)

(i) and (ii),

(i) and (iv)

(ii) and (iii)

(iii) and (iv)

(i) and (ii),

(i) and (iv)

(ii) and (iii)

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Concrete Technology and Design of Concrete Structures
For a continuous slab of 3 m x 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is

100 mm

120 mm

50 mm

75 mm

100 mm

120 mm

50 mm

75 mm

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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 35 MPa

53 MPa and 42 MPa

35 MPa and 42 MPa

42 MPa and 53 MPa

42 MPa and 35 MPa

53 MPa and 42 MPa

35 MPa and 42 MPa

42 MPa and 53 MPa

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

All of these

To resist tensile stresses

To provide adequate bond stress

To impart initial compressive stress in concrete

All of these

To resist tensile stresses

To provide adequate bond stress

To impart initial compressive stress in concrete

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Concrete Technology and Design of Concrete Structures
Minimum pitch of transverse reinforcement in a column is

sixteen times the smallest diameter of longitudinal reinforcement bar to be tied

the least lateral dimension of the member

lesser of the above three values

forty-eight times the diameter of transverse reinforcement

sixteen times the smallest diameter of longitudinal reinforcement bar to be tied

the least lateral dimension of the member

lesser of the above three values

forty-eight times the diameter of transverse reinforcement

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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

Concrete Technology and Design of Concrete Structures For a continuous slab of 3 m x 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is

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

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

Concrete Technology and Design of Concrete Structures Minimum pitch of transverse reinforcement in a column is

Concrete Technology and Design of Concrete Structures
The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

Concrete Technology and Design of Concrete Structures
For a continuous slab of 3 m x 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is

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

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

Concrete Technology and Design of Concrete Structures
Minimum pitch of transverse reinforcement in a column is