RCC Structures Design
If the modular ratio is ‘m’, steel ratio is ‘r’ and overall depth of a beam is ‘d’, the depth of the critical neutral axis of the beam, is

[m/(m - r)] d
[m/(m + r)] d
[(r - m)/m] d
[(m + r)/m] d

ANSWER DOWNLOAD EXAMIANS APP

RCC Structures Design
A pre-stressed concrete member is preferred because

Removal of cracks in the members due to shrinkage
All listed here
Its dimensions are not decided from the diagonal tensile stress
Large size of long beams carrying large shear force need not be adopted

ANSWER DOWNLOAD EXAMIANS APP

RCC Structures Design
If p₁ and p₂ are mutually perpendicular principal stresses acting on a soil mass, the normal stress on any plane inclined at angle θ° to the principal plane carrying the principal stress p₁, is:

[(p₁ + p₂)/2] + [(p₁ - p₂)/2] cos 2θ
[(p₁ - p₂)/2] + [(p₁ + p₂)/2] sin 2θ
[(p₁ + p₂)/2] + [(p₁ - p₂)/2] sin 2θ
[(p₁ - p₂)/2] + [(p₁ + p₂)/2] cos 2θ

ANSWER DOWNLOAD EXAMIANS APP