CONCRETE TECHNOLOGY AND DESIGN OF CONCRETE STRUCTURES QUIZ

Ultimate strength of cold drawn high steel wires

None of these

decreases with increase in diameter of bar

does not depend on diameter of bar

increases with increase in diameter of bar

TRUE ANSWER : ?
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The main reinforcement in the toe of a T- shaped R C. retaining wall is provided oni) top face parallel to the wallii) top face perpendicular to the walliii) bottom face paralleUo the walliv) bottom face perpendicular to the wallThe correct answer is

only (ii) is correct

only (iv) is correct

(i) and (ii) are correct

(iii) and (iv) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

In order to obtain the best workability of concrete, the preferred shape of aggregate is

All of these

angular

elongated

rounded

TRUE ANSWER : ?
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In a spherical dome the hoop stress due to a concentrated load at crown is

zero

tensile everywhere

compressive everywhere

partly compressive and partly tensile

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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

(ii) and (iv)

(ii) and (iii)

(i) and (iii)

(i)and(iv)

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Diagonal tension in a beam

Remains same

Decreases below the neutral axis and increases above the neutral axis

Increases below the neutral axis and decreases above the neutral axis

Is maximum at neutral axis

TRUE ANSWER : ?
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A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than

3.5

4.5

2.5

5.5

TRUE ANSWER : ?
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According to IS : 456- 1978, minimum slenderness ratio for a short column is

less than 18

more than 24

between 18 and 24

less than 12

TRUE ANSWER : ?
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In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always

tensile

tensile or compressive

zero

compressive

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For a reinforced concrete section, the shape of shear stress diagram is

rectangular above neutral axis and parabolic below neutral axis

parabolic above neutral axis and rectangular below neutral axis

wholly rectangular

wholly parabolic

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