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___________________?

Related Mcqs:

1. 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

2. If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by

   A. (5/6) (r/1 + r²) M
   B. (5/6) (r²/1 + r²) M
   C. (5/6) (r²/1 + r3) M
   D. (5/6) (r²/1 + r4) M

3. According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is______________?

   A. Half of the width of the slab
   B. Two -third of the width of the slab
   C. Three-fourth of the width of the slab
   D. Four-fifth of the width of the slab

4. 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

5. 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

6. The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept______________?

   A. 0.7
   B. 0.8
   C. 0.9
   D. 0.6

7. In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed________________?

   A. 10 mm
   B. 15 mm
   C. 20 mm
   D. 25 mm

8. 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

9. 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

10. 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)