# If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section

A. depends on as, only

B. depends on aCbC only

C. depends on both crst and acbc

D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bending compression.

**Answer: Option A **

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**In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively**

A. Compressive and tensile

B. Tensile and compressive

C. Both compressive

D. Both tensile

**Critical section for shear in case of flat slabs is (adopting standard notations)**

A. At a distance of effective depth of slab from periphery of column/drop panel

B. At a distance of $$\frac{{\text{d}}}{2}$$ from periphery of column/capital/drop panel

C. At the drop panel of slab

D. At the periphery of column

A. depends on as, only

B. depends on aCbC only

C. depends on both crst and acbc

D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bending compression.

**The diameter of ties in a column should be**

A. More than or equal to one fourth of diameter of main bar

B. More than or equal to 5 mm

C. More than 5 mm but less than one-fourth of diameter of main bar

D. More than 5 mm and also more than one-fourth of diameter of main bar

Grade of steel designated as fe 415