RCC STRUCTURES DESIGN QUIZ

25

10

15

20

Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier

Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier

Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously

All listed here

Half the distance of projection

0.1 L from the centre edge of column

0.1 L from the outer edge of column

One-fourth the distance of projection

No decay due to termites

All of these

No restriction on length

Higher bearing capacity

Both (b) and (c)

Not considered for calculating the area of the footing

Also considered for calculating the upward pressure on footing

Not considered for calculating the upward pressure on footing

Compression is borne entirely by concrete

Plane sections transverse to the centre line of the beam before bending remain plane after bending

Elastic moduli for concrete and steel have different values within the limits of deformation of the beam

Steel possesses initial stresses when embedded in concrete

Twice the diameter

Seven times the diameter

Four times the diameter

Thrice the diameter

f = (P/'+ (Z/M)

f = (A/P) + (M/Z)

f = (P/A) + (M/6Z)

f = (P/A) + (M/Z)

The ratio of spans in two directions is less than 2

The slab is continuous over two supports

The slab is discontinuous at edges

It supports live loads in both directions

0.7

0.75

0.5

0.25