11. The self-weight of the footing, is
12. If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is
13. The pitch of the main bars in a simply supported slab, should not exceed its effective depth by
14. Top bars are extended to the projecting parts of the combined footing of two columns L distance apart for a distance of
15. For a ribbed slab
16. Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by
17. Cantilever retaining walls can safely be used for a height not more than
18. If the bearing capacity of soil is 10 tonnes/cm2 and the projection of plain concrete footing from walls, is a cm, the depth D of footing is
19. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed
20. If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is
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