In a ring beam subjected to uniformly distributed load i) shear force at mid span is zero ii) shear force at mid span is maximum iii) torsion at mid span is zero iv) torsion at mid span is maximum The correct answer is

Concrete Technology and Design of Concrete Structures
In a ring beam subjected to uniformly distributed load
i) shear force at mid span is zero
ii) shear force at mid span is maximum
iii) torsion at mid span is zero
iv) torsion at mid span is maximum
The correct answer is

(ii) and (iii)

(i) and (iii)

(ii) and (iv)

(i) and (iv)

(ii) and (iii)

(i) and (iii)

(ii) and (iv)

(i) and (iv)

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Concrete Technology and Design of Concrete Structures
According to IS : 456-1978, the fiexural strength of concrete is

inversely proportional to compressive strength

directly proportional to square root of compressive strength

inversely proportional to square root of compressive strength

directly proportional to compressive strength

inversely proportional to compressive strength

directly proportional to square root of compressive strength

inversely proportional to square root of compressive strength

directly proportional to compressive strength

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

All of these

To provide adequate bond stress

To impart initial compressive stress in concrete

To resist tensile stresses

All of these

To provide adequate bond stress

To impart initial compressive stress in concrete

To resist tensile stresses

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Concrete Technology and Design of Concrete Structures
The load carrying capacity of a helically reinforced column as compared to that of a tied column is about

5% less

10% more

5% more

10% less

5% less

10% more

5% more

10% less

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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 ?

shrinkage of concrete

elastic shortening of concrete

loss due to friction

creep of concrete

shrinkage of concrete

elastic shortening of concrete

loss due to friction

creep of concrete

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Concrete Technology and Design of Concrete Structures
The critical section for finding maximum bending moment for footing under masonry wall is located

at a distance equal to effective depth of footing from the edge of the wall

halfway between the middle and edge of the wall

at the middle of the wall

at the edge of the wall

at a distance equal to effective depth of footing from the edge of the wall

halfway between the middle and edge of the wall

at the middle of the wall

at the edge of the wall

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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures In a ring beam subjected to uniformly distributed loadi) shear force at mid span is zeroii) shear force at mid span is maximumiii) torsion at mid span is zeroiv) torsion at mid span is maximumThe correct answer is

Concrete Technology and Design of Concrete Structures According to IS : 456-1978, the fiexural strength of concrete is

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

Concrete Technology and Design of Concrete Structures The load carrying capacity of a helically reinforced column as compared to that of a tied column is about

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 The critical section for finding maximum bending moment for footing under masonry wall is located

Concrete Technology and Design of Concrete Structures
In a ring beam subjected to uniformly distributed load
i) shear force at mid span is zero
ii) shear force at mid span is maximum
iii) torsion at mid span is zero
iv) torsion at mid span is maximum
The correct answer is

Concrete Technology and Design of Concrete Structures
According to IS : 456-1978, the fiexural strength of concrete is

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

Concrete Technology and Design of Concrete Structures
The load carrying capacity of a helically reinforced column as compared to that of a tied column is about

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
The critical section for finding maximum bending moment for footing under masonry wall is located