The load carrying capacity of a helically reinforced column as compared to that of a tied column is about________________?

Related Mcqs:

1. The load factors for live load and dead load are taken respectively as_________________?

   A. 1.5 and 2.2
   B. 2.2 and 1.5
   C. 1.5 and 1.5
   D. 2.2 and 2.2

2. Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads?

   Select your answer based on the coding system given below :

   A. Both A and R are true and R is the correct explanation of A.
   B. Both A and R are true but R is not the correct explanation of A.
   C. A is true but R is false.
   D. A is false but R is true.

3. In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always________________?

   A. zero
   B. tensile
   C. compressive
   D. tensile or compressive

4. If the permissible stress in steel in tension is 140 N/mm2, then the depth of neutral axis for a singly reinforced rectangular balanced section will be___________________?

   A. 0.35 d
   B. 0.40 d
   C. 0.45 d
   D. dependent on grade of concrete also

5. Minimum grade of concrete to be used in reinforced concrete as per IS:456-1978 is_____________?

   A. M15
   B. M20
   C. M 10
   D. M25

6. In reinforced concrete footing on soil, the minimum thickness at edge should not be less than______________?

   A. 100 mm
   B. 150 mm
   C. 200 mm
   D. 250 mm

7. The permissible diagonal tensile stress in reinforced brick work is_____________?

   A. about 0.1 N/mm2
   B. zero
   C. 0.3 N/mm2 to 0.7 N/mm2
   D. about 1.0 N/mm2

8. Due to circumferential action of the spiral in a spirally reinforced column________________?

   A. capacity of column is decreased
   B. ductility of column reduces
   C. capacity of column is decreased but ductility of column increases
   D. both the capacity of column and ductility of column increase

9. If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section_______________?

   A. depends on as, only
   B. depends on aCbC only
   C. depends on both crst and acbc
   D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bend¬ing compression

10. In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively_______________?

    A. compressive and tensile
    B. tensile and compressive
    C. both compressive
    D. both tensile