The effect of adding calcium chloride in concrete isi) to increase shrinkageii) to decrease shrinkageiii) to increase setting timeiv) to decrease setting timeThe correct answer is

Concrete Technology and Design of Concrete Structures
The effect of adding calcium chloride in concrete isi) to increase shrinkageii) to decrease shrinkageiii) to increase setting timeiv) to decrease setting timeThe correct answer is

(i) and (iii)

(ii) and (iv)

(ii) and (iii)

(i)and(iv)

(i) and (iii)

(ii) and (iv)

(ii) and (iii)

(i)and(iv)

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Concrete Technology and Design of Concrete Structures
For walls, columns and vertical faces of all structural members, the form work is generally removed after

24 to 48 hours

7 days

3 days

14 days

24 to 48 hours

7 days

3 days

14 days

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

Both the capacity of column and ductility of column increase

Capacity of column is decreased but ductility of column increases

Capacity of column is decreased

Ductility of column reduces

Both the capacity of column and ductility of column increase

Capacity of column is decreased but ductility of column increases

Capacity of column is decreased

Ductility of column reduces

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Concrete Technology and Design of Concrete Structures
Sinking of an intermediate support of a continuous beam
i) reduces the negative moment at support
ii) increases the negative moment at support
iii) reduces the positive moment at center of span
iv) increases the positive moment at center of span
The correct answer is

(i) and (iii)

(ii) and (iii)

(ii) and (iv)

(i) and (iv)

(i) and (iii)

(ii) and (iii)

(ii) and (iv)

(i) and (iv)

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Concrete Technology and Design of Concrete Structures
The maximum value of hoop compression in a dome is given by (where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome)

wR/2d

wR / 4d

2wR/d

wR/d

wR/2d

wR / 4d

2wR/d

wR/d

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Concrete Technology and Design of Concrete Structures
In prestressed concrete

both forces of tension and compres-sion as well as lever arm remain unchanged

both forces of tension and compres-sion as well as lever arm change

forces of tension and compression change but lever arm remains unchanged

forces of tension and compressions remain unchanged but lever arm changes with the moment

both forces of tension and compres-sion as well as lever arm remain unchanged

both forces of tension and compres-sion as well as lever arm change

forces of tension and compression change but lever arm remains unchanged

forces of tension and compressions remain unchanged but lever arm changes with the moment

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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures The effect of adding calcium chloride in concrete isi) to increase shrinkageii) to decrease shrinkageiii) to increase setting timeiv) to decrease setting timeThe correct answer is

Concrete Technology and Design of Concrete Structures For walls, columns and vertical faces of all structural members, the form work is generally removed after

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 maximum value of hoop compression in a dome is given by (where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome)

Concrete Technology and Design of Concrete Structures In prestressed concrete

Concrete Technology and Design of Concrete Structures
The effect of adding calcium chloride in concrete isi) to increase shrinkageii) to decrease shrinkageiii) to increase setting timeiv) to decrease setting timeThe correct answer is

Concrete Technology and Design of Concrete Structures
For walls, columns and vertical faces of all structural members, the form work is generally removed after

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 maximum value of hoop compression in a dome is given by (where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome)

Concrete Technology and Design of Concrete Structures
In prestressed concrete