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all the above.

RCC Structures Design problems

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2. A part of the slab may be considered as the flange of the T-beam if
Options
A. flange has adequate reinforcement transverse to beam
B. it is built integrally with the beam
C. it is effectively bonded together with the beam
D. all the above.

3. If the size of a column is reduced above the floor, the main bars of the columns, are
Options
A. continued up
B. bent inward at the floor level
C. stopped just below the floor level and separate lap bars provided
D. all the above.

4. In a doubly-reinforced beam if c and t are stresses in concrete and tension reinforcement, d is the effective depth and n is depth of critical neutral axis n, the following relationship holds good
Options
A.
B.
C.
D.
E.

5. Top bars are extended to the projecting parts of the combined footing of two columns L distance apart for a distance of
Options
A. 0.1 L from the outer edge of column
B. 0.1 L from the centre edge of column
C. half the distance of projection
D. one-fourth the distance of projection.

6. The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or
Options
A. 12 bar diameters
B. 18 bar diameters
C. 24 bar diameters
D. 30 bar diameters
E. 36 bar diameters

8. If the shear stress in a R.C.C. beam is
Options
A. equal or less than 5 kg/cm², no shear reinforcement is provided
B. greater than 4 kg/cm², but less than 20 kg/cm², shear reinforcement is provided
C. greater than 20 kg/cm², the size of the section is changed
D. all the above.

9. In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at
Options
A. less loaded column
B. more loaded column
C. a point equidistant from either column
D. a point of the maximum shear force
E. a point of zero shear force.

10. P is the prestressed force applied to the tendon of a rectangular prestressed beam whose area of cross section is A and sectional modulus is Z. The maximum stress f in the beam, subjected to a maximum bending moment M, is
Options
A.
B.
C.
D.
E.

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