For a ribbed slab______________?

Related Mcqs:

1. In a cantilever retaining wall without a heel slab______________?

   A. Thickness of the stem is kept same throughout
   B. Base slab is made 10 cm thicker than the stem
   C. Width of the base slab is kept 0.7 time the total height of the wall
   D. All the above

2. The thickness of the topping of a ribbed slab, varies between________________?

   A. 3 cm to 5 cm
   B. 5 cm to 8 cm
   C. 8 cm to 10 cm
   D. 12 cm to 15 cm

3. 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

4. A ribbed slab is provided for______________?

   A. A plain ceiling
   B. Thermal insulation
   C. Acoustic insulation
   D. All the above

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

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

6. Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam_______________?

   A. Are curtailed if not required to resist the bending moment
   B. Are bent up at suitable places to serve as shear reinforcement
   C. Are bent down at suitable places to serve as shear reinforcement
   D. Are maintained at bottom to provide at least local bond stress

7. The modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation.

   A. m = 700/3C
   B. m = 1400/3C
   C. m = 2800/3C
   D. m = 3500/3C

8. 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

9. The system in which high tensile alloy steel bars (silica manganese steel) are used as prestressing tendons, is known as________________?

   A. Freyssinet system
   B. Magnel-Blaton system
   C. C.C.L. standard system
   D. Lee-McCall system

10. In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called________________?

    A. Under-reinforced section
    B. Over reinforced section
    C. Economic section
    D. Critical section