The amount of reinforcement for main bars in a slab, is based upon___________________?

Related Mcqs:

1. If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is_____________?

   A. 10 mm
   B. 12 mm
   C. 14 mm
   D. 16 mm

2. The pitch of the main bars in a simply supported slab, should not exceed its effective depth by_____________?

   A. Three times
   B. Four times
   C. Five times
   D. Six times

3. Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than____________?

   A. 42 diameters from the centre of the column
   B. 42 diameters from the inner edge of the column
   C. 42 diameters from the outer edge of the column
   D. 24 diameters from the centre of the column

4. The breadth of a ribbed slab containing two bars must be between______________?

   A. 6 cm to 7.5 cm
   B. 8 cm to 10 cm
   C. 10 cm to 12 cm
   D. 12 cm to 15 cm

5. In a simply supported slab, alternate bars are curtailed at________________?

   A. 1/4th of the span
   B. 1/5th of the span
   C. 1/6th of the span
   D. 1/7th of the span

6. 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

7. 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

8. 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

9. 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

10. 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