For a number of columns constructed in a rcjw, the type of foundation provided, is_______________?

Related Mcqs:

1. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is__________________?

   A. Square
   B. Rectangular
   C. Trapezoidal
   D. Triangular

2. If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight w per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is )/(1 + sin )]_________________?

   A. h = (W/Aw) [(1 –
   B. h = (W/Aw) [(1 + )/(1 + sin )]
   C. h = (W/Aw) [(1 – )/(1 + sin )]²
   D. h W/Aw) [(1 – )/(1 + sin )]²

3. A raft foundation is provided if its area exceeds the plan area of the building by______________?

   A. 10 %
   B. 20 %
   C. 40 %
   D. 50 %

4. If is the sectional area of a pre-stressed rectangular beam provided with a tendon pre -stressed by a force through its centroidal longitudinal axis, the compressive stress in concrete, is_______________?

   A. P/A
   B. A/P
   C. P/2A
   D. 2A/P

5. Columns may be made of plain concrete if their unsupported lengths do not exceed their least lateral dimension_______________?

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

6. The minimum clear cover for R.C.C. columns shall be_________________?

   A. Greater of 40 mm or diameter
   B. Smaller of 40 mm or diameter
   C. Greater of 25 mm or diameter
   D. Smaller of 25 mm or diameter

7. 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 – )

8. 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

9. The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than________________?

   A. 4 mm
   B. 5 mm
   C. 6 mm
   D. 7 mm

10. In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

    A. Less loaded column
    B. More loaded column
    C. A point of the maximum shear force
    D. A point of zero shear force