If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth D. of the footing from punching shear consideration, is____________________?

Related Mcqs:

1. Based on punching shear consideration, the overall depth of a combined footing under a column A, is_______________?

   A. (Area of the column A × Safe punching stress)/Load on column A B. (Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column) C. (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column) D. None...

2. If is the net upward pressure on a square footing of side for a square column of side , the maximum bending moment is given by_________________?

   A. B.M = pb (c – a)/4 B. B.M = pb (b – a)²/4 C. B.M = pb (b – a)²/8 D. B.M = pb (b + a)/8...

3. 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 – )...

4. If the bearing capacity of soil is 10 tonnes/cm2 and the projection of plain concrete footing from walls, is a cm, the depth D of footing is_______________?

   A. D = 0.0775 a B. D = 0.775 a C. D = 0.775 a D. D = 0.775 a2...

5. 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...

6. A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is____________________?

   A. bn (fc/2) (d – n/3) B. Atft (d – n/3) C. ½ n1 (1 – n1/3) cbd² D. All the above...

7. If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by________________?

   A. D = 0.00775 aP B. D = 0.0775 aP C. D = 0.07775 aP D. D = 0.775 Pa...

8. An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is_______________?

   A. 8.3 kg/cm2 B. 7.6 kg/cm2 C. 21.5 kg/cm 2 D. 11.4 kg/cm2...

9. If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than________________?

   A. WL/12 (L – 2D/3)² B. WL/10 (L + 2D/3)² C. WL/10 (L – 2D/3)² D. WL/12 (L – D/3)²...

10. In a combined footing if shear stress exceeds 5 kg/cm2, the nominal stirrups provided are______________?

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