If W is total load per unit area on a panel, D is the diameter of the column hea

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If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than
Options
A.
B.
C.
D.

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RCC Structures Design problems

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1. If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm² and 1400 kg/cm² respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is
Options
A. 0.496%
B. 0.596%
C. 0.696%
D. 0.796%
E. none of these.

3. If a rectangular prestressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be
Options
A. 5 cm
B. 10 cm
C. 15 cm
D. 20 cm
E. 25 cm

4. If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is
Options
A.
B.
C.
D.
E. All the above.

5. Pick up the true statement from the following:
Options
A. Plain ceiling provides the best property diffusing light
B. In the absence of beams, it is easier to install piping
C. In the absence of beams, it is easier to paint
D. A flat slab is capable to withstand concentrated loads
E. All the above.

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