If the size of a column is reduced above the floor, the main bars of the columns, are_____________?

Related Mcqs:

1. An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus_______________?

   A. Triangular load of the wall
   B. UDL of wall
   C. UDL of wall + load from the roof
   D. Triangular load + load from the roof

2. If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads______________?

   A. y = L – (l – ) )
   B. y = L/2 + (l –
   C. y = L/2 – (l + )
   D. y = L/2 – (l – )

3. The diameter of main bars in R.C.C. columns, shall not be less than________________?

   A. 6 mm
   B. 8 mm
   C. 10 mm
   D. 12 mm

4. A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed_______________?

   A. 4120 kg
   B. 41,200 kg
   C. 412,000 kg
   D. None of these

5. Top bars are extended to the projecting parts of the combined footing of two columns Ldistance apart for a distance of_______________?

   A. 0.1 L from the outer edge of column
   B. 0.1 L from the centre edge of column
   C. Half the distance of projection
   D. One -fourth the distance of projection

6. 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

7. 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

8. 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

9. If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than____________________?

   A. 4 mm
   B. 5 mm
   C. 6 mm
   D. 8 mm

10. The diameter of longitudinal bars of a column should never be less than_____________?

    A. 6 mm
    B. 8 mm
    C. 10 mm
    D. 12 mm