An R.C.C. column is treated as short column if its slenderness ratio is less than_______________?

Related Mcqs:

1. An R.C.C. column is treated as long if its slenderness ratio is greater than____________?

   A. 30
   B. 35
   C. 40
   D. 50

2. If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is_______________?

   A. 40
   B. 45
   C. 50
   D. 55

3. A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds_________________?

   A. 10
   B. 15
   C. 20
   D. 25

4. 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 – )

5. 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

6. The radius of a bar bend to form a hook, should not be less than_______________?

   A. Twice the diameter
   B. Thrice the diameter
   C. Four times the diameter
   D. Five times the diameter

7. The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than_______________?

   A. 18 bar diameters
   B. 24 bar diameters
   C. 30 bar diameters
   D. 36 bar diameters

8. If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is______________?

   A. cAc + m cAsc
   B. c(A – Asc) + m cAsc
   C. c[A + (m – 1)ASC]
   D. All the above

9. Cantilever retaining walls can safely be used for a height not more than_______________?

   A. 3 m
   B. 4 m
   C. 5 m
   D. 6 m

10. Dimensions of a beam need be changed if the shear stress is more than_______________?

    A. 10 kg/cm2
    B. 15 kg/cm2
    C. 20 kg/cm2
    D. 25 kg/cm2