The maximum permissible size of aggregates to be used in casting the ribs of a slab, is______________?

Related Mcqs:

1. on a circular slab of radius , the maximum radial moment at the centre of the If is the load slab, is WR²/16_____________?

   A. 2WR²/16
   B. 3WR²/16
   C. 5WR²/16
   D> NON OF THESE

2. If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is________________?

   A. WR²/16
   B. 2WR²/16
   C. 3WR²/16
   D. Zero

3. bending moment of a simply supported slab is M Kg.cm, the effective depth of the If the maximum slab is (where Q is M.R. factor)________________?

   A. M/100Q
   B. M/ Q
   C. M/Q)
   D. (M/100Q)

4. In case the factor of safety against sliding is less than 1.5, a portion of slab is constructed downwards at the end of the heel slab, which is known as___________________?

   A. A key
   B. A cut-off wall
   C. A rib
   D. All the above

5. Long and short spans of a two way slab are l and l and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. Accordingy to xRankine Grashoff theory___________________?

   A. (wx/wy) = (ly/lx)
   B. (wx/wy) = (ly/lx)²
   C. (wx/wy) = (ly/lx)4
   D. None of these

6. 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_______________?

   A. K/x (1 + x/d) + bw
   B. Kx (1 – x/l) + bw
   C. Kx (1 + x/l) + bw
   D. All the above

7. An R.C.C. roof slab is designed as a two way slab if________________?

   A. It supports live loads in both directions
   B. The ratio of spans in two directions is less than 2
   C. The slab is continuous over two supports
   D. The slab is discontinuous at edges

8. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is______________?

   A. 35
   B. 25
   C. 30
   D. 20

9. The maximum diameter of a bar used in a ribbed slab, is______________?

   A. 12 mm
   B. 6 mm
   C. 20 mm
   D. 22 mm

10. For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is___________________?

    A. 1
    B. 2
    C. 3
    D. 5